Yoga as exercise
Yoga as exercise is a physical activity consisting mainly of postures, often connected by flowing sequences, sometimes accompanied by breathing exercises, and frequently ending with relaxation lying down or meditation. Yoga in this form has become familiar across the world, especially in America and Europe. It is derived from medieval Haṭha yoga, which made use of similar postures, but it is generally simply called "yoga". Academics have given yoga as exercise a variety of names, including modern postural yoga[a] and transnational anglophone yoga.
Posture is described in the Yoga Sutras II.29 as the third of the eight limbs, the ashtanga, of yoga. Sutra II.46 defines it as that which is steady and comfortable, but no further elaboration or list of postures is given.
Postures were not central in any of the older traditions of yoga; posture practice was revived in the 1920s by yoga gurus including Yogendra and Kuvalayananda, who emphasised its health benefits. The flowing sequences of Surya Namaskar (Salute to the Sun) were pioneered by the Rajah of Aundh, Bhawanrao Shrinivasrao Pant Pratinidhi, in the 1920s. It and many standing poses used in gymnastics were incorporated into yoga by the yoga teacher Krishnamacharya in Mysore from the 1930s to the 1950s. Several of his students went on to found influential schools of yoga: Pattabhi Jois created Ashtanga Vinyasa Yoga, which in turn led to Power Yoga; B. K. S. Iyengar created Iyengar Yoga, and defined a modern set of yoga postures in his 1966 book Light on Yoga; and Indra Devi taught yoga as exercise to many celebrities in Hollywood. Other major schools founded in the 20th century include Bikram Yoga and Sivananda Yoga. Yoga as exercise spread across America and Europe, and then the rest of the world.
Haṭha yoga's non-postural practices such as its purifications are much reduced or absent in yoga as exercise. The term "hatha yoga" is also in use with a different meaning, a gentle unbranded yoga practice, independent of the major schools, often mainly for women. Practices vary from wholly secular, for exercise and relaxation, through to undoubtedly spiritual, whether in traditions like Sivananda Yoga or in personal rituals. Yoga as exercise's relationship to Hinduism is complex and contested; some Christians have rejected it on the grounds that it is covertly Hindu, while the "Take Back Yoga" campaign insisted that it was necessarily connected to Hinduism. Scholars have identified multiple trends in the changing nature of yoga since the end of the 19th century. Yoga as exercise has developed into a worldwide multi-billion dollar business, involving classes, certification of teachers, clothing such as yoga pants, books, videos, equipment including yoga mats, and holidays.
The Sanskrit noun योग yoga, cognate with English "yoke", is derived from the root yuj "to attach, join, harness, yoke". Its ancient spiritual and philosophical goal was to unite the human spirit with the divine. The branch of yoga that makes use of physical postures is Haṭha yoga. The Sanskrit word हठ haṭha means "force", alluding to its use of physical techniques.
Haṭha yoga flourished among secretive ascetic groups such as Nath yogins in South Asia from c. 1100-c. 1900. Instruction was directly from guru to individual pupil, in a long-term relationship. It was associated with religions, especially Hinduism but also Jainism and Buddhism. Its objectives were to manipulate vital fluids to enable absorption and ultimately liberation. It consisted of practices including purifications, postures (asanas), locks, the directed gaze, seals, and rhythmic breathing. These were claimed to provide supernatural powers including healing, destruction of poisons, invisibility, and shape-shifting. Yogins wore little or no clothing; their bodies were sometimes smeared with cremation ash as a reminder of their forthcoming deaths. Equipment, too, was scanty; sometimes yogins used a tiger or deer skin as a rug to meditate on. Hatha yoga made use of a small number of asanas, mainly seated; in particular, there were very few standing poses before 1900. They were practised slowly, often holding a position for long periods. The practice of asanas was a minor preparatory aspect of spiritual work. Yogins followed a strict vegetarian diet, excluding stimulants such as tea, coffee or alcohol. Their yoga was taught without payment; gurus were supported by gifts and the philosophy was anti-consumerist.
According to one theory, the system of physical education practised in the 19th-century Young Men's Christian Association, adapted by ex-military gymnasts for the schooling system in colonial British India, became the default form of mass-drill, and this influenced the "modernized hatha yoga". According to the yoga scholar Suzanne Newcombe, modern yoga in India is a blend of Western gymnastics with postures from Haṭha yoga in India in the 20th century. Mircea Eliade, in contrast, rejected yoga as an athletic practice, stating that yoga "must not be confused with gymnastics".
From the 1850s onwards, there developed in India a culture of physical exercise to counter the colonial stereotype of supposed "degeneracy" of Indians compared to the British, a belief reinforced by then-current ideas of Lamarckism and eugenics. This culture was taken up from the 1880s to the early 20th century by Indian nationalists such as Tiruka, who taught exercises and unarmed combat techniques under the guise of yoga. The German bodybuilder Eugen Sandow was acclaimed on his 1905 visit to India, at which time he was already a "cultural hero" in the country. The anthropologist Joseph Alter suggests that Sandow was the person who had the most influence on modern yoga. The first handbook of asanas in English, and the first to be illustrated with photographs, was Seetharaman Sundaram's 1928 Yogic Physical Culture.
Introduction to the West
Yoga was introduced to the Western world by the spiritual leader Vivekananda's 1893 visit to the World Parliament of Religions in Chicago, and his 1896 book Raja Yoga. However, he rejected Haṭha yoga and its "entirely" physical practices such as asanas as difficult and ineffective for spiritual growth, out of a widely shared distaste for India's wandering yogins. Yoga asanas were brought to America by the yoga teacher Yogendra. He founded a branch of The Yoga Institute in New York state in 1919, starting to make Haṭha yoga acceptable, seeking scientific evidence for its health benefits, and writing books such as his 1928 Yoga Asanas Simplified and his 1931 Yoga Personal Hygiene. The flowing sequences of salute to the sun, Surya Namaskar, now accepted as yoga and containing popular asanas such as Uttanasana and upward and downward dog poses, were popularized by the Rajah of Aundh, Bhawanrao Shrinivasrao Pant Pratinidhi, in the 1920s.
In 1924, the yoga teacher Kuvalayananda founded the Kaivalyadhama Health and Yoga Research Center in Maharashtra, combining asanas with gymnastics, and like Yogendra seeking a scientific and medical basis for yogic practices.
In 1925, Kuvalayananda's rival Paramahansa Yogananda, having moved from India to America, set up the Self-Realization Fellowship in Los Angeles, and taught yoga, including asanas, breathing, chanting and meditation, to "tens of thousands of Americans". In 1923, Yogananda's younger brother, Bishnu Charan Ghosh, founded the Ghosh College of Yoga and Physical Culture in Calcutta.
Tirumalai Krishnamacharya (1888–1989), "the father of modern yoga", claimed to have spent seven years with one of the few masters of Haṭha yoga then living, Ramamohana Brahmachari, at Lake Manasarovar in Tibet, from 1912 to 1918. He studied under Kuvalayananda in the 1930s, and then in his yogashala in the Jaganmohan Palace in Mysore created "a marriage of Haṭha yoga, wrestling exercises, and modern Western gymnastic movement, and unlike anything seen before in the yoga tradition." The Maharajah of Mysore Krishna Raja Wadiyar IV was a leading advocate of physical culture in India, and a neighbouring hall of his palace was used to teach Surya Namaskar classes, then considered to be gymnastic exercises. Krishnamacharya adapted these sequences of exercises into his flowing vinyasa style of yoga. The yoga scholar Mark Singleton noted that gymnastic systems like Niels Bukh's were popular in physical culture in India at that time, and that they contained many postures similar to Krishnamacharya's new asanas.
Among Krishnamacharya's pupils were people who became influential yoga teachers themselves: the Russian Eugenie V. Peterson, known as Indra Devi (from 1937), who moved to Hollywood, taught yoga to celebrities, and wrote the bestselling book Forever Young, Forever Healthy; Pattabhi Jois (from 1927), who founded the flowing style Ashtanga Vinyasa Yoga whose Mysore style makes use of repetitions of Surya Namaskar, in 1948, which in turn led to Power Yoga; and B.K.S. Iyengar (from 1933), his brother-in-law, who founded Iyengar Yoga, with its first centre in Britain. Together they made yoga popular as exercise and brought it to the Western world. Iyengar's 1966 book Light on Yoga popularised yoga asanas worldwide with what the scholar-practitioner Norman Sjoman calls its "clear no-nonsense descriptions and the obvious refinement of the illustrations", though the degree of precision it calls for is missing from earlier yoga texts.
Other Indian schools of yoga took up the new style of asanas, but continued to emphasize Haṭha yoga's spiritual goals and practices to varying extents. The Divine Life Society was founded by Sivananda Saraswati of Rishikesh in 1936. His many disciples include Swami Vishnudevananda, who founded the International Sivananda Yoga Vedanta Centres, starting in 1959; Swami Satyananda of the Bihar School of Yoga, a major centre of Haṭha yoga teacher training, founded in 1963; and Swami Satchidananda of Integral Yoga, founded in 1966. Vishnudevananda published his Complete Illustrated Book of Yoga in 1960, with a list of asanas that substantially overlaps with Iyengar's, sometimes with different names for the same poses;[b] Jois's asana names almost exactly match Iyengar's.
Three changes around the 1960s allowed yoga as exercise to become a worldwide commodity. People were for the first time able to travel freely around the world: consumers could go to the east; Indians could migrate to Europe and America; and business people and religious leaders could go where they liked to sell their wares. Secondly, people across the Western world became disillusioned with organised religion, and started to look for alternatives. And thirdly, yoga became an uncontroversial form of exercise suitable for mass consumption, unlike the more religious or meditational forms of modern yoga such as Siddha Yoga or Transcendental Meditation. This involved the dropping of many traditional requirements on the practice of yoga, such as giving alms, being celibate, studying the Hindu scriptures, and retreating from society.
From the 1970s, yoga as exercise spread across many countries of the world, changing as it did so, and becoming "an integral part of (primarily) urban cultures worldwide", to the extent that the word yoga in the Western world now means the practice of asanas, typically in a class.[c] For example, Iyengar Yoga reached South Africa in 1979 with the opening of its institute at Pietermaritzburg; its Association of South East & East Asia was founded in 2009. Yoga's spread in America was assisted by the television show Lilias, Yoga and You, hosted by Lilias Folan; it ran from 1970 to 1999. In Australia, by 2005 some 12% of the population practised yoga in a class or at home.
The market for yoga grew, argues the scholar of religion Andrea Jain, with the creation of an "endless" variety of second-generation yoga brands, saleable products, "constructed and marketed for immediate consumption", based on earlier developments. For example, in 1997 John Friend, once a financial analyst, who had intensively studied both the postural Iyengar Yoga and the non-postural Siddha Yoga, founded Anusara Yoga. Friend likened the choice of his yoga over other brands to choosing "a fine restaurant" over "a fast-food joint"; The New York Times Magazine headed its piece on him "The Yoga Mogul", while the historian of yoga Stefanie Syman argued that Friend had "very self-consciously" created his own yoga community. For example, Friend published his own teacher training manual, held workshops, conferences, and festivals, marketed his own brand of yoga mats and water bottles, and prescribed ethical guidelines. When Friend did not live up to the brand's high standards, he apologised publicly and took steps to protect the brand, in 2012 stepping back from running it and appointing a CEO.
Jain states that yoga is becoming "part of pop culture around the world". Alter writes that it illustrates "transnational transmutation and the blurring of consumerism, holistic health, and embodied mysticism—as well as good old-fashioned Orientalism." Singleton argues that the commodity is the yoga body itself, its "spiritual possibility" signified by the "lucent skin of the yoga model", a beautiful image endlessly sold back to the yoga-practising public "as an irresistible commodity of the holistic, perfectible self".
In 2008, the United States Department of Health and Human Services labelled September as National Yoga Month. From 2015, at the suggestion of India's Prime Minister, Narendra Modi, an annual International Day of Yoga has been held on 21 June.
The anthropologist Sarah Strauss contrasts the goal of classical yoga, the isolation of the self or kaivalya, with the modern goals of good health, reduced stress, and physical flexibility. Sjoman notes that many of the asanas in Iyengar's Light on Yoga can be traced to his teacher, Krishnamacharya, "but not beyond him". Singleton states that yoga used as exercise is not "the outcome of a direct and unbroken lineage of haṭha yoga", but it would be "going too far to say that modern postural yoga has no relationship to asana practice within the Indian tradition." The contemporary yoga practice is the result of "radical innovation and experimentation" of its Indian heritage. Jain writes that equating yoga as exercise with hatha yoga "does not account for the historical sources": asanas "only became prominent in modern yoga in the early twentieth century as a result of the dialogical exchanges between Indian reformers and nationalists and Americans and Europeans interested in health and fitness". In short, Jain writes, "modern yoga systems ... bear little resemblance to the yoga systems that preceded them. This is because [both] ... are specific to their own social contexts." The historian Jared Farmer writes that twelve trends have characterised yoga's progression from the 1890s onwards: from peripheral to central in society; from India to global; from male to "predominantly" female; from spiritual to "mostly" secular; from sectarian to universal; from mendicant to consumerist; from meditational to postural; from being understood intellectually to experientially; from embodying esoteric knowledge to being accessible to all; from being taught orally to hands-on instruction; from presenting poses in text to using photographs; and from being "contorted social pariahs" to "lithe social winners". The trend away from authority is continued in post-lineage yoga, which is practised outside any major school or guru's lineage.
Yoga as exercise consists largely but not exclusively of the practice of asanas. The numbers of asanas described (not just named) in some major Haṭha yoga and modern texts are shown in the table; all the Haṭha yoga text dates are approximate.
|No. of asanas||Text||Date||Evidence supplied|
|2||Goraksha Shataka||10th-11th century||Describes Siddhasana, Padmasana; a "symbolic"[d] 84 claimed|
|4||Shiva Samhita||15th century||4 seated asanas described, 84 claimed; 11 mudras|
|15||Hatha Yoga Pradipika||15th century||15 asanas described, 4 (Siddhasana, Padmasana, Bhadrasana and Simhasana) named as important|
|32||Gheranda Samhita||17th century||Descriptions of 32 seated, backbend, twist, balancing and inverted asanas, 25 mudras.|
|52||Hatha Ratnavali||17th century||52 asanas described, out of 84 named[e]|
|84||Joga Pradipika||1830||84 asanas and 24 mudras in rare illustrated edition of 18th century text|
|37||Yoga Sopana||1905||Describes and illustrates with halftone plates 37 asanas, 6 mudras, 5 bandhas|
|~200||Light on Yoga
B. K. S. Iyengar
|1966||Descriptions and photographs of each asana|
|908||Master Yoga Chart
|1984||Photographs of each asana|
Asanas can be classified in different ways, which may overlap: for example, by the position of the head and feet (standing, sitting, reclining, inverted), by whether balancing is required, or by the effect on the spine (forward bend, backbend, twist), giving a set of asana types agreed by most authors. The yoga guru Dharma Mittra uses his own categories such as "Floor & Supine Poses". Yogapedia and Yoga Journal add "Hip-opening"; the yoga teacher Darren Rhodes, Yogapedia and Yoga Journal also add "Core strength".
The number of schools and styles of yoga in the Western world has continued to grow rapidly. By 2012, there were at least 19 widespread styles from Ashtanga Yoga to Viniyoga. These emphasise different aspects including aerobic exercise, precision in the asanas, and spirituality in the Haṭha yoga tradition.
These aspects can be illustrated by schools with distinctive styles. For example, Bikram Yoga has an aerobic exercise style with rooms heated to 105 °F (41 °C) and a fixed pattern of 2 breathing exercises and 24 asanas. Iyengar Yoga emphasises correct alignment in the postures, working slowly, if necessary with props, and ending with relaxation. Sivananda Yoga focuses more on spiritual practice, with 12 basic poses, chanting in Sanskrit, pranayama breathing exercises, meditation, and relaxation in each class, and importance is placed on vegetarian diet. Jivamukti Yoga uses a flowing vinyasa style of asanas accompanied by music, chanting, and the reading of scriptures. Kundalini yoga emphasises the awakening of kundalini energy through meditation, pranayama, chanting, and suitable asanas.
Alongside the yoga brands, many teachers, for example in England, offer an unbranded "hatha yoga",[f] often mainly to women, creating their own combinations of poses. These may be in flowing sequences (vinyasas), and new variants of poses are often created. The gender imbalance has sometimes been marked; in Britain in the 1970s, women formed between 70 and 90 percent of most yoga classes, as well as most of the yoga teachers.
The tradition begun by Krishnamacharya survives at the Krishnamacharya Yoga Mandiram in Chennai; his son T. K. V. Desikachar and his grandson Kausthub Desikachar continued to teach in small groups, coordinating asana movements with the breath, and personalising the teaching according to the needs of individual students.
Yoga sessions vary widely depending on the school and style, and according to how advanced the class is. As with any exercise class, sessions usually start slowly with gentle warm-up exercises, move on to more vigorous exercises, and slow down again towards the end. A beginners' class can begin with simple poses like Sukhasana, some rounds of Surya Namaskar, and then a combination of standing poses such as Trikonasana, sitting poses like Dandasana, and balancing poses like Navasana; it may end with some reclining and inverted poses like Setu Bandha Sarvangasana and Viparita Karani, a reclining twist, and finally Savasana for relaxation and in some styles also for a guided meditation. A typical session in most styles lasts from an hour to an hour and a half, whereas in Mysore style yoga, the class is scheduled in a three-hour time window during which the students practice on their own at their own speed, following individualised instruction by the teacher.
The evolution of yoga as exercise is not confined to the creation of new asanas and linking vinyasa sequences. A wide variety of hybrid activities combining yoga with martial arts, aerial yoga combined with acrobatics, yoga with barre work (as in ballet preparation), on horseback, with dogs, with goats, with ring-tailed lemurs, with weights, and on paddleboards are all being explored.
The energy cost of exercise is measured in units of metabolic equivalent of task (MET). Less than 3 METs counts as light exercise; 3 to 6 METs is moderate; 6 or over is vigorous. American College of Sports Medicine and American Heart Association guidelines count periods of at least 10 minutes of moderate MET level activity towards their recommended daily amounts of exercise. For healthy adults aged 18 to 65, the guidelines recommend moderate exercise for 30 minutes five days a week, or vigorous aerobic exercise for 20 minutes three days a week.
Treated as a form of exercise, a complete yoga session with asanas and pranayama provides 3.3 ± 1.6 METs, on average a moderate workout. Surya Namaskar ranged from a light 2.9 to a vigorous 7.4 METs;[g] the average for a session of yoga practice without Surya Namaskar was a light 2.9 ± 0.8 METs.[h]
Physical or Hindu
Since the mid-20th century, yoga has been used, especially in the Western world, as physical exercise for fitness and suppleness, rather than for what the historian of American yoga, Stefanie Syman, calls any "overtly Hindu" purpose. In 2010, this ambiguity triggered what the New York Times called "a surprisingly fierce debate in the gentle world of yoga". Some saffronising Indian-Americans campaigned to "Take Back Yoga" by informing Americans and other Westerners about the connection between yoga and Hinduism. The campaign was criticised by the New Age author Deepak Chopra, but supported by the president of the Southern Baptist Theological Seminary, R. Albert Mohler Jr. Jain[i] notes that yoga is not necessarily Hindu, as it can also be Jain or Buddhist; nor is it homogeneous or static, so she is critical of both what she calls the "Christian yogaphobic position" and the "Hindu origins position". Farmer writes that Syman identifies a Protestant streak in yoga as exercise, "with its emphasis on working the body. This effortful yoga is, she says, paradoxical, both 'an indulgence and a penance'."
Authorities differ on whether yoga is purely exercise. For example, in 2012, New York state decided that yoga was exempt from state sales tax as it did not constitute "true exercise", whereas in 2014 the District of Columbia was clear that yoga premises were subject to the local sales tax on premises "the purpose of which is physical exercise". Similar debates have taken place in a Muslim context; for example, restrictions on yoga have been lifted in Saudi Arabia. In Malaysia, Kuala Lumpur permits yoga classes provided they do not include chanting or meditation. The yoga teacher and author Mira Mehta, asked by Yoga Magazine in 2010 whether she preferred her pupils to commit to a spiritual path before they start yoga, replied "Certainly not. A person's spiritual life is his or her own affair. People come to yoga for all sorts of reasons. High on the list is health and the desire to become de-stressed." Kimberley J. Pingatore, studying attitudes among American yoga practitioners, found that they did not view the categories of religious, spiritual, and secular as alternatives.
However, Haṭha yoga's "ecstatic .. transcendent .. possibly subversive" elements remain in yoga used as exercise. For example, Syman suggests that part of the attraction of Bikram and Ashtanga Yoga was that under the sweat, the commitment, the schedule, the physical demands and even the verbal abuse was a hard-won ecstasy, "a deep feeling of vitality, a feeling of pure energy, an unbowed posture, and mental acuity". That context has led to a division of opinion among Christians, some like Alexandra Davis of the Evangelical Alliance asserting that it is acceptable as long as they are aware of modern yoga's origins, others like Paul Gosbee stating that yoga's purpose is to "open up chakras" and release kundalini or "serpent power" which in Gosbee's view is "from Satan", making "Christian yoga .. a contradiction". Church halls are sometimes used for yoga, and in 2015 a yoga group was banned from a church hall in Bristol by the local parochial church council, stating that yoga represented "alternative spiritualities".
In a secular context, the journalists Nell Frizzell and Reni Eddo-Lodge have debated (in The Guardian) whether Western yoga classes represent "cultural appropriation". In Frizzell's view, yoga has become a new entity, a long way from the Yoga Sutras of Patanjali, and while some practitioners are culturally insensitive, others treat it with more respect. Eddo-Lodge agrees that Western yoga is far from Patanjali, but argues that the changes cannot be undone, whether people use it "as a holier-than-thou tool, as a tactic to balance out excessive drug use, or practised similarly to its origins with the spirituality that comes with it". Jain argues however that charges of appropriation "from 'the East' to 'the West'" fail to take account of the fact that yoga is evolving in a shared multinational process; it is not something that is being stolen from one place by another.
Yoga as exercise has been popularized in the Western world by claims about its health benefits. The history of such claims was reviewed by William J. Broad in his 2012 book The Science of Yoga; he states that the claims that yoga was scientific began as Hindu nationalist posturing. Among the early exponents was Kuvalayananda, who attempted to demonstrate scientifically in his purpose-built 1924 laboratory at Kaivalyadhama that Sarvangasana (shoulderstand) specifically rehabilitated the endocrine glands (the organs that secrete hormones). He found no evidence to support such a claim, for this or any other asana.
The impact of yoga as exercise on physical and mental health has been a topic of systematic studies (evaluating primary research), although a 2014 report found that, despite its common practice and possible health benefits, it remained "extremely understudied". A systematic review of six studies found that Iyengar yoga is effective at least in the short term for both neck pain and low back pain. A review of six studies found benefits for depression, but noted that the studies' methods imposed limitations, while a clinical practice guideline from the American Cancer Society stated that yoga may reduce anxiety and stress in people with cancer. A 2015 systematic review called for more rigour in clinical trials of the effect of yoga on mood and measures of stress.
The practice of asanas has been claimed to improve flexibility, strength, and balance; to alleviate stress and anxiety, and to reduce the symptoms of lower back pain. A review of five studies noted that three psychological (positive affect, mindfulness, self-compassion) and four biological mechanisms (posterior hypothalamus, interleukin-6, C-reactive protein and cortisol) that might act on stress had been examined empirically, whereas many other potential mechanisms remained to be studied; four of the mechanisms (positive affect, self-compassion, inhibition of the posterior hypothalamus and salivary cortisol) were found to mediate the potential stress-lowering effects of yoga. A 2017 review found moderate-quality evidence that yoga reduces back pain. For people with cancer, yoga may help relieve fatigue, improve psychological outcomes, and support sleep quality and life attitudes, although results vary from reviews published in 2017.
A 2015 systematic review noted that yoga may be effective in alleviating symptoms of prenatal depression. There is evidence that practice of asanas improves birth outcomes and physical health and quality of life measures in the elderly, and reduces hypertension.
From its origins in the 1920s, yoga used as exercise has had a "spiritual" aspect which is not necessarily neo-Hindu; its assimilation with Harmonial Gymnastics is an example. Jain calls yoga as exercise "a sacred fitness regimen set apart from day-to-day life." The yoga therapist Ann Swanson writes that "scientific principles and evidence have demystified [yoga, but] .. surprisingly, this made my transformative experiences feel even more magical." Yoga practice sessions have, notes yoga scholar Elizabeth De Michelis, a highly specific three-part structure that matches Arnold van Gennep's 1908 definition of the basic structure of a ritual:
For the separation phase, the yoga session begins by going into a neutral and if possible a secluded practice hall; worries, responsibilities, ego and shoes are all left outside; and the yoga teacher is treated with deference. The actual yoga practice forms the transition state, combining practical instructions with theory, made more or less explicit. The practitioner learns "to feel and to perceive in novel ways, most of all inwardly"; to "become silent and receptive" to help to get away from the "ego-dominated rationality of modern Western life". The final relaxation forms the incorporation phase; the practitioner relaxes in Savasana, just as dictated by the Hatha Yoga Pradipika 1.32. The posture offers "an exercise in sense withdrawal and mental quietening, and thus .. a first step towards meditative practice", a cleansing and healing process, and even a symbolic death and moment of self-renewal. Iyengar writes that savasana puts the practitioner in "that precise state [where] the body, the breath, the mind and the brain move toward the real self (Atma)" so as to merge into the Infinite, thus explaining the modern yoga healing ritual in terms of the Hindu Vishishtadvaita: an explanation that, De Michelis notes, practitioners are free to follow if they wish.
The yoga scholar Elliott Goldberg notes that some practitioners of yoga as exercise "inhabit their body as a means of accessing the spiritual... they use their asana practice as a vehicle for transcendence." He cites yoga teacher Vanda Scaravelli's 1991 Awakening the Spine as an instance of such transcendence: "We learn to elongate and extend, rather than to pull and push... [and so] an unexpected opening follows, an opening from within us, giving life to the spine, as though the body had to reverse and awaken into another dimension."
In mindful yoga, the practice of asanas is combined with pranayama and meditation, using the breath and sometimes Buddhist Vipassana meditation techniques to bring the attention to the body and the emotions, thus quietening the mind.
The idea of competitive yoga has been called an oxymoron by some people in the yoga community, such as the yoga teacher Maja Sidebaeck, but the fiercely contested Bishnu Charan Ghosh Cup, founded by Bikram Choudhury in 2003, is now held annually in Los Angeles.
By the 21st century, yoga as exercise had become a flourishing business; a 2016 Ipsos study reported that 36.7 million Americans practise yoga, making the business of classes, clothing and equipment worth $16 billion in America, compared to $10 billion in 2012, and $80 billion worldwide. 72 percent of practitioners were women. By 2010, Yoga Journal, founded in 1975, had some 350,000 subscribers and over 1,300,000 readers.
Clothing and equipment
Fashion has entered the world of yoga, with brands such as Lorna Jane and Lululemon offering their own ranges of women's yoga clothing. Sales of goods such as yoga mats are increasing rapidly; sales are projected to rise to $14 billion by 2020 in North America, where the key vendors in 2016 were Barefoot Yoga, Gaiam, Jade Yoga, and Manduka, according to Technavio. Sales of athleisure clothing such as yoga pants were worth $35 billion in 2014, forming 17% of American clothing sales. A wide variety of instructional videos are available, some free, for yoga practice at beginner and advanced levels; by 2018, over 6,000 commercially produced titles were on sale. Over 1,000 books have been published on yoga poses. Yoga has reached high fashion, too: in 2011, the fashion house Gucci, noting the "halo of chic" around yoga-practising celebrities such as Madonna and Sting, produced a yoga mat costing $850 and a matching carry case in leather for $350.
In India, participants typically wear loose-fitting clothes for yoga classes, while serious practitioners in yoga ashrams practice an arduous combination of exercise, meditation, selfless service, vegetarian diet and celibacy, making yoga a way of life.
Holidays and training
Yoga holidays (vacations) are offered in "idyllic" places around the world, including in Croatia, England, France, Greece, Iceland, Indonesia, India, Italy, Montenegro, Morocco, Portugal, Romania, Spain, Sri Lanka, Thailand, and Turkey; in 2018, prices were up to £1,295 (about $1,500) for 6 days.
Teacher training, as of 2017, could cost between $2,000 and $5,000. It can take up to 3 years to obtain a teaching certificate. Yoga training courses, as of 2017, were still unregulated in the UK; the British Wheel of Yoga has been appointed the activity's official governing body by Sport England, but it lacks power to compel training organisations, and many people are taking short unaccredited courses rather than one of the nine so far accredited.
Bikram Yoga has become a global brand, and its founder, Bikram Choudhury, spent some ten years from 2002 attempting to establish copyright on the sequence of 26 postures used in Bikram Yoga, with some initial success. However, in 2012, the American federal court ruled that Bikram Yoga could not be copyrighted. In 2015, after further legal action, the American court of appeals ruled that the yoga sequence and breathing exercises were not eligible for copyright protection.
Yoga has found its way into types of literature as varied as autobiography, chick lit, and documentary. The actress Mariel Hemingway's 2002 autobiography Finding My Balance: A Memoir with Yoga describes how she used yoga to recover balance in her life after a dysfunctional upbringing: among other things, her grandfather, the novelist Ernest Hemingway, killed himself shortly before she was born. Each chapter is titled after an asana, the first being "Mountain Pose, or Tadasana", the posture of standing in balance. The teacher of yoga and mindful meditation Anne Cushman's 2009 novel Enlightenment for Idiots tells the story of a woman nearing the age of thirty whose life as a nanny and yogini hopeful isn't working out as expected, and is sure that a visit to the ashrams of India will sort out her life. Instead, she finds that nothing in India is quite what it seems on the surface. The Yoga Journal review notes that underneath the chick lit "fun romp", the book is a serious "call to enlightenment and an introduction to yoga philosophy".
Kate Churchill's 2009 film Enlighten Up! follows an unemployed journalist for six months as, on the filmmaker's invitation, he travels the globe – New York, Boulder, California, Hawaii, India – to practise under yoga masters including Jois, Norman Allen,[j] and Iyengar. The critic Roger Ebert found it interesting and peaceful, if "not terribly eventful, but I suppose we wouldn't want a yoga thriller". He commented: "I'm glad I saw it. I enjoyed all the people I met during Nick's six-month quest. Most seemed cheerful and outgoing, and exuded good health. They smiled a lot. They weren't creepy true believers obsessed with converting everyone."
Yoga is becoming a subject of academic inquiry; many of the researchers are "scholar practitioners" who do yoga themselves. Medknow (part of Wolters Kluwer), with Swami Vivekananda Yoga Anusandhana Samsthana university, publishes the peer-reviewed open access medical journal International Journal of Yoga. An increasing number of papers are being published on the possible medical benefits of yoga, such as on stress and low back pain. The School of Oriental and African Studies in London has created a Centre of Yoga Studies; it hosted the five-year Hatha Yoga Project which traced the history of physical yoga, and it teaches a master's degree in yoga and meditation.
Academics have given yoga as exercise a variety of names, including "modern postural yoga" reflecting its emphasis on asanas (postures) and "transnational anglophone yoga" denoting its growth in the English-speaking world, especially America.
- In 2004, Elizabeth De Michelis introduced a typology that subdivided her main category "Modern Yoga" into "Modern Psychosomatic Yoga", "Modern Denominational Yoga", "Modern Postural Yoga" and "Modern Meditational Yoga".
- The different names are sometimes closely connected. For example, Vishnudevananda's Anjaneyasana 2 is Iyengar's Hanumanasana; Anjani is Hanuman's mother, and Anjaneya is a matronymic for Hanuman.
- The yoga scholar De Michelis notes that to speakers of Indic languages, yoga has a "quite different" semantic range, including meditation, prayer, ritual and devotional practices, ethical behaviour, and "secret esoteric techniques" that average English speakers would not consider to be yoga.
- 84's symbolism may, according to Richard Rosen, citing S. Dasgupta, Gudrun Bühnemann, and John Campbell Onan, derive from its astrological and numerological properties: it is the product of 7, the number of planets in astrology, and 12, the number of signs of the zodiac, while in numerology, 7 is the sum of 3 and 4, and 12 is the product, i.e. 84 is (3+4)×(3×4).
- 84 names of asanas are listed; not all can now be identified.
- Not to be confused with medieval Haṭha yoga
- Haskell, curious about the wide range of METs in Surya Namaskar, repeated the study (Mody) which gave the highest value; using "transition jumps, and full pushups", he obtained "agreement" with 6.4 METs.
- Asanas performed individually provide on average 2.2 ± 0.7 METs; pranayama types performed individually provide just 1.3 ± 0.3 METs.
- Andrea Jain is not, despite her surname, a practising Jain.
- Allen was the first American to be taught by Jois.
- De Michelis 2004, pp. 1–2.
- The De Michelis 2004 typology can be seen at Yoga as Linkage.
- Singleton 2013, p. 38.
- Doctor, Vikram (15 June 2018). "Bhawanrao Shrinivasrao Pant Pratinidhi: The man who promoted Surya Namaskar". The Economic Times (India).
- Monier-Williams, Monier (1899). "Yoga". A Sanskrit-English Dictionary. Delhi: Motilal Banarsidass. p. 856.
- White, David Gordon (2011). Yoga in Practice. Princeton University Press. p. 3. ISBN 978-0-691-14086-5.
- Mallinson 2011, p. 770.
- Jain, Andrea (July 2016). "The Early History of Modern Yoga". Oxford Research Encyclopedia of Religion. Oxford Research Encyclopedias. doi:10.1093/acrefore/9780199340378.013.163. Retrieved 23 February 2019.
- Mallinson & Singleton 2017, pp. Chapters 5 and 6, especially pages 228–229.
- Mallinson & Singleton 2017, pp. xxviii–xxxii, 46, 49–50, 71–79.
- Singleton 2010, pp. 28–29, 173.
- Bühnemann 2007, pp. 20–21.
- Mallinson, James (9 December 2011a). "A Response to Mark Singleton's Yoga Body by JamesMallinson". Retrieved 3 July 2019. revised from American Academy of Religions conference, San Francisco, 19 November 2011.
- Iyengar 1979, pp. 27–29.
- Singleton 2010, p. 29.
- Jain 2015, p. 14.
- Singleton 2010, p. 28.
- Hemachandra's Yogashastra 1.8–9
- Mallinson & Singleton 2017, pp. 385–387.
- Cushman, Anne (Jul–Aug 1999). "Previously Untold Yoga History Sheds New Light". Yoga Journal. p. 43.
I thought of the naked yogis I had seen on the banks of the Ganges, their skin smeared with ashes from the cremation pyre to remind themselves of the body's impermanence, their foreheads painted with the insignia of Shiva, the god of destruction. I couldn't resist. "Well, traditionally, you would carry a trident and cover your body with the ashes of the dead," I told her. ... "But alternatively," I said, "a leotard and tights will work just fine."
- Adiswarananda, Swami (2007). Meditation & Its Practices: A Definitive Guide to Techniques and Traditions of Meditation in Yoga and Vedanta. SkyLight Paths Publishing. p. 204. ISBN 978-1-59473-105-1.
The sacred texts and traditions suggest that the seat be made of tiger skin, deer skin, wool, silk or cotton, that it be used exclusively by the aspirant, and only for the practice of meditation.
- Singleton 2010, p. 161.
- Mallinson & Singleton 2017, p. 93.
- Lidell 1983, pp. 78–87.
- Neehan, Jack (21 March 2017). "Yoga: James Mallinson uncovers the ancient traditions of the great yogis". SOAS. Retrieved 5 March 2019.
- Syman 2010, p. 284.
- Singleton, Mark (4 February 2011). "The Ancient & Modern Roots of Yoga". Yoga Journal.
- Singleton 2010, pp. 84–88.
- Newcombe 2017.
- Singleton 2010, p. 88.
- Singleton 2010, pp. 95–97.
- Rosselli, J. (February 1980). "The Self-Image of Effeteness: Physical Education and Nationalism in Nineteenth-Century Bengal". Past & Present. 86 (86): 121–148. doi:10.1093/past/86.1.121. JSTOR 650742. PMID 11615074.
- Singleton 2010, pp. 97–98.
- Kevles 1995, p. 58.
- Singleton 2010, pp. 98–106.
- Tiruka 1977, p. v.
- Singleton 2010, p. 89.
- Alter 2004, p. 28.
- "About School Of Yoga". School of Yoga. Retrieved 24 March 2019.
- Goldberg 2016, pp. 152–178.
- Bukh 2010.
- Singleton 2010, pp. 161, 200–203.
- Syman 2010, pp. 37–46.
- Singleton 2010, pp. 70–75.
- Mishra, Debashree (3 July 2016). "Once Upon A Time: From 1918, this Yoga institute has been teaching generations, creating history". Indian Express. Mumbai.
- Caycedo 1966, p. 194.
- De Michelis 2004, p. 183.
- Shearer 2020, p. 251.
- Yogendra 1928.
- Singleton 2010, pp. 116–117.
- Mehta 1990, pp. 146–147.
- Lidell 1983, pp. 34–35.
- Pratinidhi 1938.
- Goldberg 2016, pp. 180–207.
- Wathen, Grace (1 July 2011). "Kaivalyadhama & Yoga Postures". LiveStrong. Archived from the original on 12 November 2011.
- Alter 2004, p. 31.
- Goldberg 2016, pp. 100–141.
- Mohan, A. G.; Mohan, Ganesh (29 November 2009). "Memories of a Master". Yoga Journal. Archived from the original on 6 March 2010.
- Ricci, Jeanne (28 August 2007). "Paramahansa Yogananda". Yoga Journal. Retrieved 30 November 2018.
- Anderson, Diane (9 August 2010). "The YJ Interview: Partners in Peace". Yoga Journal. Archived from the original on 2 September 2010.
- Singleton 2010, pp. 175–210.
- Pages Ruiz, Fernando (28 August 2007). "Krishnamacharya's Legacy: Modern Yoga's Inventor". Yoga Journal. Retrieved 26 November 2018.
- Goldberg 2016, pp. 234–248.
- Schrank, Sarah (2014). "American Yoga: The Shaping of Modern Body Culture in the United States". American Studies. 53 (1): 169–182. doi:10.1353/ams.2014.0021. S2CID 144698814.
- Devi 1953.
- Singleton 2010, pp. 88, 175–210.
- Kest, Bryan (2017-09-04). "The History of Power Yoga". Power Yoga. Retrieved 1 January 2019.
- Iyengar 2006, pp. xvi–xx.
- Mohan 2010, p. 11.
- Goldberg 2016, p. 384.
- Sjoman 1999, p. 39.
- Sjoman 1999, p. 47.
- Mallinson 2011, p. 779.
- Singleton 2010, p. 213, note 14.
- Vishnudevananda 1988.
- Sjoman 1999, pp. 87–89.
- Gaia Staff (27 September 2016). "Anjaneyasana: The Lunge Pose". Gaia. Retrieved 6 July 2019.
- Sjoman 1999, p. 50.
- Jain 2015, p. 43.
- Jain 2015, pp. 66–67.
- De Michelis, Elizabeth (2007). "A Preliminary Survey of Modern Yoga Studies" (PDF). Asian Medicine, Tradition and Modernity. 3 (1): 1–19. doi:10.1163/157342107X207182.
- "History". Iyengar Yoga Institute, South Africa. Retrieved 18 July 2019.
- Newcombe 2014, pp. 147–167.
- Gates 2006, pp. 61–64.
- Schneider 2003, pp. 10–15.
- Penman, Stephen; Stevens, Philip; Cohen, Marc; Jackson, Sue (2012). "Yoga in Australia: Results of a national survey". International Journal of Yoga. 5 (2): 92–101. doi:10.4103/0973-6131.98217. ISSN 0973-6131. PMC 3410203. PMID 22869991.
- Jain 2015, p. 73.
- Jain 2015, p. 74.
- Swartz, Mimi (21 July 2010). "The Yoga Mogul". The New York Times Magazine.
- Syman 2010.
- Jain 2015, pp. 74, 88–94.
- Jain 2015, pp. 90–91.
- Jain 2015, p. 92.
- Jain 2015, p. xvii.
- Alter 2004, p. 247 (ch. 1, note 7).
- Singleton 2010, p. 174.
- Croteau, Jeanne. "September is National Yoga Month — How You Can Get Started". Forbes. Retrieved 5 October 2020.
- UN Declared 21 June as International Day of Yoga Archived 9 July 2016 at the Wayback Machine
- Jain 2015, p. 112.
- Strauss 2005, p. 5.
- Singleton 2010, p. 33.
- Jain, Andrea R. (2012). "The Malleability of Yoga: A Response to Christian and Hindu Opponents of the Popularization of Yoga". Journal of Hindu-Christian Studies. Butler University, Irwin Library. 25 (1). doi:10.7825/2164-6279.1510.
- Jain 2015, p. 19.
- Farmer, Jared (2012). "Americanasana". Reviews in American History. 40 (1): 145–158. doi:10.1353/rah.2012.0016.
- Lucia, Amanda J. (2020). White Utopias: The Religious Exoticism of Transformational Festivals. University of California Press. pp. 75 ff, 136 ff. ISBN 978-0-520-37695-3.
- Singleton 2010, pp. 29, 170.
- Singh, T. D. (2005). "Science and Religion: Global Perspectives, 4 – 8 June 2005, Philadelphia | Hinduism and Science" (PDF). Metanexus Institute.
- Swami Kuvalayananda; Shukla, S. A., eds. (December 2006). Goraksha Satakam. Lonavla, India: Kaivalyadhama S. M. Y. M. Samiti. pp. 37–38. ISBN 81-89485-44-X.
- Rosen, Richard (2017). Yoga FAQ: Almost Everything You Need to Know about Yoga-from Asanas to Yamas. Shambhala. pp. 171–. ISBN 978-0-8348-4057-7.
this number has symbolic significance. S. Dasgupta, in Obscure Religious Cults (1946), cites numerous instances of variations on eighty-four in Indian literature that stress its "purely mystical nature"; ... Gudrun Bühnemann, in her comprehensive Eighty-Four Asanas in Yoga, notes that the number "signifies completeness, and in some cases, sacredness. ... John Campbell Oman, in The Mystics, Ascetics, and Saints of India (1905) ... seven ... classical planets in Indian astrology ... and twelve, the number of signs of the zodiac. ... Matthew Kapstein gives .. a numerological point of view ... 3+4=7 ... 3x4=12 ..."
- "Hatha Yoga Pradipika: Chapter 1. On Âsanas". sacred-texts.com.
- Mallinson, James (2004). The Gheranda Samhita: the original Sanskrit and an English translation. YogaVidya. pp. 16–17. ISBN 978-0-9716466-3-6.
- Yogendra, Jayadeva, ed. (1988). Cyclopaedia Yoga. Bombay, India: The Yoga Institute. p. 32.
- Srinivasa 2002, pp. 98–122 – asanas listed; Between pages 153 & 154 – Figures of asanas; pp. 157–159 – asanas named but not described.
- Singleton 2010, p. 170.
- Iyengar 1979.
- Mittra, Dharma (1984). Master Chart of Yoga Poses.
- Mehta 1990, pp. 188–191.
- Saraswati 1996.
- "Poses". PocketYoga. 2018.
- "Categories of Yoga Poses". Yoga Point. 2018.
- Mittra 2003.
- "Yoga Poses". Yogapedia. 2018.
- "Poses by Type". Yoga Journal. 2018.
- Rhodes 2016.
- "What's Your Style? Explore the Types of Yoga". Yoga Journal. 13 November 2012.
- Beirne, Geraldine (10 January 2014). "Yoga: a beginner's guide to the different styles". The Guardian. Retrieved 1 February 2019.
- Goldberg 2016, pp. 320–336.
- Shearer 2020, p. 2.
- Singleton 2010, p. 152.
- Cook, Jennifer (28 August 2007). "Find Your Match Among the Many Types of Yoga". Yoga Journal.
If you are browsing through a yoga studio's brochure of classes and the yoga offered is simply described as "hatha," chances are the teacher is offering an eclectic blend of two or more of the styles described above.
- Newcombe 2007.
- "Krishnamacharya Yoga Mandiram". Krishnamacharya Yoga Mandiram. Retrieved 30 December 2018.
- Mehta 1990, pp. 22–23.
- Tomlinson, Kirsty. "Yoga style guide". Ekhart Yoga. Retrieved 1 February 2019.
Hatha .. Vinyasa flow .. Yin Yoga .. Yin Yang Yoga .. Slow flow .. Ashtanga .. Somatics .. Budokon .. Iyengar .. Yamuna .. Yoga Nidra .. Scaravelli-inspired .. Mixed movement .. Kundalini-inspired .. Core Strength Vinyasa .. Restorative Yoga .. AcroYoga .. Anusara ..
- Rosen, Richard (28 August 2007). "Sequencing Primer: 9 Ways to Plan a Yoga Class". Yoga Journal. Retrieved 1 February 2019.
- "Yoga Hybrids". Yoga Journal. Retrieved 1 January 2019.
- Gowing 2019, pp. 78–84.
- Lavelle, Daniel (3 December 2018). "Goat yoga – the greatest of all time or a passing fad?". The Guardian.
- "Lake District hotel launches lemur yoga classes". BBC. 2 April 2019. Retrieved 2 April 2019.
- Matthews, Jessica. "What Can I Expect in a Paddleboard Yoga Class?". American Council of Exercise.
- "'Flo-yo' a yoga, paddleboard mashup — just don't fall in". today.com. Retrieved 17 September 2013.
- Larson-Meyer, D. Enette (2016). "A Systematic Review of the Energy Cost and Metabolic Intensity of Yoga". Medicine & Science in Sports & Exercise. 48 (8): 1558–1569. doi:10.1249/MSS.0000000000000922. ISSN 0195-9131. PMID 27433961. The review examined 17 studies, of which 10 measured the energy cost of yoga sessions.
- Haskell, William L.; et al. (2007). "Physical Activity and Public Health". Circulation. 116 (9): 1081–1093. doi:10.1161/CIRCULATIONAHA.107.185649. ISSN 0009-7322. PMID 17671237.
- Nanda, Meera (12 February 2011). "Not as Old as You Think". OPEN Magazine.
- Feuerstein, Georg (March 2003). "The Lost Teachings of Yoga". Common Ground (March 2003): 4–27. Archived from the original on 15 November 2010.
For most modern pract[it]ioners, yoga is fitness training. They know nothing about the moral disciplines. They show little or no interest in meditation. The idea of a guru is alien to them. The ideal of liberation is outlandish, even if they are familiar with the concept.
- Syman 2010, p. 5.
- Vitello, Paul (27 November 2010). "Hindu Group Stirs a Debate Over Yoga's Soul". The New York Times.
- Jain 2015, pp. x, xiv.
- Jain 2015, pp. 130–157, esp. 131.
- Syman 2010, p. 291.
- "Is yoga really about exercise?". BBC Magazine Monitor. 1 October 2014. Retrieved 5 January 2019.
- Davis, Erik (3 May 2013). "Is yoga a religion?". Aeon.
- Ferretti, Andrea (1 March 2012). "Yoga As a Religion?". Yoga Journal. Retrieved 21 February 2019.
- Chopra, Anuj (30 September 2018). "Saudi Arabia embraces yoga in pivot toward 'moderation'". The Times of Israel. Retrieved 9 March 2019.
- "A Teacher's Tale" (PDF). Yoga Magazine. May 2010. Archived (PDF) from the original on 3 March 2019. Retrieved 3 March 2019.
- Pingatore, Kimberley J. (December 2015). Bodies Bending Boundaries: Religious, Spiritual, and Secular Identities of Modern Postural Yoga in the Ozarks. Missouri State University (MA Thesis).
- Syman 2010, p. 277.
- Davis, Alexandra (1 January 2016). "Should Christians do yoga?". Evangelical Alliance. Retrieved 29 November 2018.
- "Bristol yoga group barred from church hall". BBC. 9 February 2015. Retrieved 5 January 2019.
- Frizzell, Nell; Eddo-Lodge, Reni (23 November 2015). "Are yoga classes just bad cultural appropriation?". The Guardian.
- Jain 2015, p. xii.
- "Yoga Health Benefits: Flexibility, Strength, Posture, and More". WEBMD. Retrieved 22 June 2015.
- Broad 2012, pp. 39 and whole book.
- Goldberg 2016, pp. 100–109, esp. p 108.
- Ding, Ding; Stamatakis, Emmanuel (2014). "Yoga practice in England 1997–2008: prevalence, temporal trends, and correlates of participation". BMC Research Notes. 7 (1): 172. doi:10.1186/1756-0500-7-172. ISSN 1756-0500. PMC 3987846. PMID 24661723.
- Crow, Edith Meszaros; Jeannot, Emilien; Trewhela, Alison (2015). "Effectiveness of Iyengar yoga in treating spinal (back and neck) pain: A systematic review". International Journal of Yoga. 8 (1): 3–14. doi:10.4103/0973-6131.146046. PMC 4278133. PMID 25558128.
- Louie, Lila (2014). "The Effectiveness of Yoga for Depression: A Critical Literature Review". Issues in Mental Health Nursing. 35 (4): 265–276. doi:10.3109/01612840.2013.874062. PMID 24702211. S2CID 23554567.
- Greenlee, Heather; DuPont-Reyes, Melissa J.; Balneaves, Lynda G.; Carlson, Linda E.; Cohen, Misha R.; Deng, Gary; Johnson, Jillian A.; Mumber, Matthew; Seely, Dugald; Zick, Suzanna M.; Boyce, Lindsay M.; Tripathy, Debu (2017-04-24). "Clinical practice guidelines on the evidence-based use of integrative therapies during and after breast cancer treatment". CA: A Cancer Journal for Clinicians. 67 (3): 194–232. doi:10.3322/caac.21397. ISSN 0007-9235. PMC 5892208. PMID 28436999.
- Pascoe, Michaela C.; Bauer, Isabelle E. (1 September 2015). "A systematic review of randomised control trials on the effects of yoga on stress measures and mood". Journal of Psychiatric Research. 68: 270–282. doi:10.1016/j.jpsychires.2015.07.013. PMID 26228429.
- Hayes, M.; Chase, S. (March 2010). "Prescribing Yoga". Primary Care. 37 (1): 31–47. doi:10.1016/j.pop.2009.09.009. PMID 20188996.
- Riley, Kristen E.; Park, Crystal L. (2015). "How does yoga reduce stress? A systematic review of mechanisms of change and guide to future inquiry". Health Psychology Review. 9 (3): 379–396. doi:10.1080/17437199.2014.981778. PMID 25559560. S2CID 35963343.
- Chou, Roger; Deyo, Richard; Friedly, Janna; Skelly, Andrea; Hashimoto, Robin; Weimer, Melissa; Fu, Rochelle; Dana, Tracy; Kraegel, Paul; Griffin, Jessica; Grusing, Sara; Brodt, Erika D. (2017-02-14). "Nonpharmacologic therapies for low back pain: A systematic Review for an American College of Physicians Clinical Practice Guideline". Annals of Internal Medicine. 166 (7): 493–505. doi:10.7326/m16-2459. ISSN 0003-4819. PMID 28192793.
- Cramer, Holger; Lauche, Romy; Klose, Petra; Lange, Silke; Langhorst, Jost; Dobos, Gustav J (2017-01-03). "Yoga for improving health-related quality of life, mental health and cancer-related symptoms in women diagnosed with breast cancer". Cochrane Database of Systematic Reviews. 1: CD010802. doi:10.1002/14651858.cd010802.pub2. ISSN 1465-1858. PMC 6465041. PMID 28045199.
- Danhauer, Suzanne C.; Addington, Elizabeth L.; Sohl, Stephanie J.; Chaoul, Alejandro; Cohen, Lorenzo (2017-01-07). "Review of yoga therapy during cancer treatment". Supportive Care in Cancer. 25 (4): 1357–1372. doi:10.1007/s00520-016-3556-9. ISSN 0941-4355. PMC 5777241. PMID 28064385.
- Gong, H.; Ni, C.; Shen, X.; Wu, T .; Jiang, C. (February 2015). "Yoga for prenatal depression: a systematic review and meta-analysis". BMC Psychiatry. 15: 14. doi:10.1186/s12888-015-0393-1. PMC 4323231. PMID 25652267.
- Silverberg, D. S. (September 1990). "Non-pharmacological treatment of hypertension". Journal of Hypertension Supplement. 8 (4): S21–6. PMID 2258779.
- Labarthe, D.; Ayala, C. (May 2002). "Nondrug interventions in hypertension prevention and control". Cardiology Clinics. 20 (2): 249–263. doi:10.1016/s0733-8651(01)00003-0. PMID 12119799.
- De Michelis 2004, pp. 248–249.
- Singleton 2010, pp. 143–162.
- Jain 2015, p. 130.
- Swanson 2019, p. 7.
- De Michelis 2004, p. 252.
- Van Gennep 1965.
- Dalton, T. (2001). "Yoga in the City". Ascent. 11 (Fall): 37.
- De Michelis 2004, pp. 252–255.
- Fuller, R. C. (1989). Alternative Medicine and American Religious Life. Oxford University Press. p. 123.
- De Michelis 2004, p. 255.
- De Michelis 2004, pp. 257–258.
- Iyengar 1983, pp. 232–233, 249–251.
- De Michelis 2004, p. 258.
- Goldberg 2016, p. 138.
- Scaravelli 1991, p. 10.
- Cushman 2014, pp. xi and whole book.
- Whitworth, Melissa (7 June 2010). "Are you cool enough for competitive yoga?". The Daily Telegraph.
Hang on. Yoga competition? Surely competition is the very antithesis to the philosophy of the practice, which is about spiritual and physical wellbeing attained through a personal journey? Can you 'win’ at yoga when it’s supposed to be spiritual, not competitive? Apparently, yes.
- Beck, Sara (11 June 2012). "Yoga Is Not Just Posing as Sport at World Event". The New York Times.
- DiBlasio, Natalie (30 December 2014). "Retailers rush to tap Millennial 'athleisure' market". USA Today.
- "2016 Yoga in America Study". Ipsos Public Affairs. January 2016. pp. 1–87.
- Delaney, Brigid (17 September 2017). "The yoga industry is booming – but does it make you a better person?". The Guardian.
- Macy, Dayna (13 January 2016). "2016 Yoga in America Study Conducted by Yoga Journal and Yoga Alliance Reveals Growth and Benefits of the Practice" (PDF). Yoga Journal.
- "The Yoga Journal Story". Yoga Journal. Archived from the original on 24 January 2010.
- "Yoga Videos". Yoga Journal. Retrieved 31 December 2018.
- Barta, Kristen (2017). "The Best Yoga Videos of the Year". Healthline. Retrieved 31 December 2018.
- "DVD & Blu-ray : 'yoga'". Retrieved 31 December 2018.
- "Yoga Poses". WorldCat. Retrieved 1 January 2019.
Results 1-10 of about 3,019
- Veenhof 2011, p. 397.
- Timmons, Heather (17 January 2012). "The Great Yoga Divide". The New York Times. Retrieved 18 May 2019.
- Dunford, Jane (7 October 2018). "Perfect positions: 20 best yoga holidays worldwide". The Observer. The Guardian.
- Hampson, Laura (27 December 2018). "The best winter wellness retreats in the UK for a new year getaway".
- Sylger Jones, Caroline (21 June 2018). "10 of the world's most scenic yoga retreats". The Daily Telegraph.
- Lisinski, Anna (22 June 2015). "The truth behind becoming a yoga teacher". The Daily Telegraph.
- "Yoga regulation - what you need to know". Keep Yoga Free. 2017. Retrieved 6 April 2020.
- "Sports that we recognise". Sport England. Retrieved 31 December 2018.
- Godwin, Richard (18 February 2017). "'He said he could do what he wanted': the scandal that rocked Bikram yoga". The Guardian.
- Moss, Rebecca (19 December 2012). "Hold that Pose: Federal Judge Rules that Bikram Yoga Cannot be Copyrighted". Retrieved 29 December 2018.
- Sullivan, Shawn (13 October 2015). "Yoga Sequence not Protected by Copyright, says 9th Circuit". Sullivan Law. Retrieved 29 December 2018.
- Hemingway 2004, pp. Chapter 1, and whole book.
- Mahadevan-Dasgupta, Uma (11 August 2003). "Striking a fine balance with peace". Business Standard. Retrieved 22 February 2019.
- Cushman 2009.
- Dowdle, Hillary (March 2008). "Enlightened Fiction". Yoga Journal. No. March 2008. pp. 117–119.
- "Norman Allen – Big Island, Hawaii 2001 | Interviews". Ashtanga Yoga Shala NYC. 2001. Retrieved 22 February 2019.
- Ebert, Roger (10 June 2009). "Reviews | Enlighten Up!". Roger Ebert. Retrieved 22 February 2019.
- "Kate Churchill & Nick Rosen Q&A". Cinedigm. Retrieved 22 February 2019.
- Newcombe 2009.
- "About Us". International Journal of Yoga. Retrieved 22 May 2019.
- "International Journal of Yoga". Retrieved 20 May 2019.
- "The science of yoga — what research reveals". Elsevier. Retrieved 22 May 2019.
- "Centre of Yoga Studies". SOAS. Retrieved 22 May 2019.
- Alter, Joseph (2004). Yoga in Modern India : the body between science and philosophy. Princeton University Press. ISBN 978-0-691-11874-1. OCLC 53483558.
- Broad, William J. (2012). The Science of Yoga: The Risks and the Rewards. Simon and Schuster. ISBN 978-1-4516-4142-4.
- Bühnemann, Gudrun (2007). Eighty-Four Asanas in Yoga: A Survey of Traditions. New Delhi: D. K. Printworld. ISBN 978-8124604175.
- Bukh, Niels (2010) . Primary Gymnastics. Tufts Press. ISBN 978-1-4465-2735-1.
- Caycedo, Alfonso (1966). India of Yogis. National Publishing House, University of Michigan.
- Cushman, Anne (2009). Enlightenment for Idiots. Random House. ISBN 978-0-307-38165-1.
- ——— (2014). Moving into Meditation. Shambhala. ISBN 978-1-61180-098-2.
- De Michelis, Elizabeth (2004). A History of Modern Yoga : Patañjali and Western Esotericism. Continuum. ISBN 978-0-8264-8772-8. OCLC 51942410.
- Devi, Indra (1953). Forever Young, Forever Healthy:Simplified Yoga for Modern Living. Prentice-Hall. OCLC 652377847.
- Gates, Janice (2006). Yogini: Women Visionaries of the Yoga World. Mandala. ISBN 978-1-932771-88-6.
- Goldberg, Elliott (2016). The Path of Modern Yoga : the history of an embodied spiritual practice. Inner Traditions. ISBN 978-1-62055-567-5. OCLC 926062252.
- Gowing, Elizabeth (2019). Unlikely Positions (in Unlikely Places) : a Yoga Journey Around Britain. England: Bradt Travel Guides. ISBN 978-1-78477-640-4. OCLC 1061309216.
- Hemingway, Mariel (2004) . Finding My Balance: A Memoir with Yoga. Simon & Schuster. ISBN 978-0-7432-6432-7.
- Iyengar, B. K. S. (1979) . Light on Yoga: Yoga Dipika. Unwin Paperbacks. ISBN 978-1-85538-166-7.
- ——— (1983). Light on Pranayama: Pranayama Dipika. Unwin Paperbacks.
- ——— (2006). Light on Life: The Yoga Journey to Wholeness, Inner Peace, and Ultimate Freedom. ISBN 978-1-59486-524-4.
- Jain, Andrea (2015). Selling Yoga : from Counterculture to Pop culture. Oxford University Press. ISBN 978-0-19-939024-3. OCLC 878953765.
- Kevles, Daniel (1995). In the name of eugenics : genetics and the uses of human heredity. Harvard University Press. ISBN 978-0-674-44557-4. OCLC 32430452.
- Lidell, Lucy; The Sivananda Yoga Centre (1983). The Book of Yoga: the complete step-by-step guide. Ebury. ISBN 978-0-85223-297-2. OCLC 12457963.
- Mallinson, James (2011). Knut A. Jacobsen; et al. (eds.). Haṭha Yoga in the Brill Encyclopedia of Hinduism. 3. Brill Academic. pp. 770–781. ISBN 978-90-04-27128-9.
- ——— & Singleton, Mark (2017). Roots of Yoga. Penguin Books. ISBN 978-0-241-25304-5. OCLC 928480104.
- Mehta, Silva; Mehta, Mira; Mehta, Shyam (1990). Yoga: The Iyengar Way. Dorling Kindersley. ISBN 978-0-86318-420-8.
- Mittra, Dharma (2003). Asanas: 608 Yoga Poses. ISBN 978-1-57731-402-8.
- Mohan, A. G. (2010). Krishnamacharya: His Life and Teachings. Shambhala. p. 11. ISBN 978-1-59030-800-4.
- Newcombe, Suzanne (2007). "Stretching for Health and Well-Being: Yoga and Women in Britain, 1960–1980". Asian Medicine. 3 (1): 37–63. doi:10.1163/157342107X207209.
- ——— (2009). "The Development of Modern Yoga: A Survey of the Field". Religion Compass. 3 (6): 986–1002. doi:10.1111/j.1749-8171.2009.00171.x.
- ——— (2014). Singleton, Mark; Goldberg, Ellen (eds.). The institutionalization of the yoga tradition: gurus B. K. S. Iyengar and Yogini Sunita in Britain (PDF). Gurus of Modern Yoga. Oxford University Press. ISBN 978-0-19-993872-8.
- ——— (2017). "The Revival of Yoga in Contemporary India" (PDF). In Barton, John (ed.). Oxford Research Encyclopedias: Religion. Oxford: Oxford University Press. doi:10.1093/acrefore/9780199340378.013.253. ISBN 978-0-19-934037-8.
- Pratinidhi, Bhawanrao Shrinivasrao Pant (1938) . Morgan, Louise (ed.). The Ten-Point Way to Health = Surya Namaskars. London: J. M. Dent. OCLC 156801198.
- Rhodes, Darren (2016). Yoga Resource Practice Manual. Tirtha Studios. ISBN 978-0-9836883-9-6.
- Saraswati, Swami Satyananda (1996). Asana Pranayama Mudra Bandha (PDF). Yoga Publications Trust. ISBN 978-81-86336-14-4.
- Scaravelli, Vanda (1991). Awakening the Spine. Harper. ISBN 978-0-06-242853-0. OCLC 907678659.
- Schneider, Carrie (2003). American Yoga: The Paths and Practices of America's Greatest Yoga Masters. Barnes & Noble. pp. 60–65. ISBN 0-7607-4558-7.
- Shearer, Alistair (2020). The Story of Yoga : from Ancient India to the Modern West. C. Hurst. ISBN 978-1-78738-192-6. OCLC 1089012347.
- Singleton, Mark (2010). Yoga Body : the origins of modern posture practice. Oxford University Press. ISBN 978-0-19-539534-1. OCLC 318191988.
- ——— (2013). Beatrix Hauser (ed.). Transnational Exchange and the Genesis of Modern Postural Yoga. Yoga Traveling: Bodily Practice in Transcultural Perspective. Springer. ISBN 978-3-319-00315-3.
- Sjoman, Norman E. (1999) . The Yoga Tradition of the Mysore Palace (2nd ed.). Abhinav Publications. ISBN 81-7017-389-2.
- Srinivasa, Narinder (2002). Gharote, M. L.; Devnath, Parimal; Jha, Vijay Kant (eds.). Haṭharatnāvalī (a treatise on Haṭhayoga) of Śrīnivāsayogī (1st ed.). The Lonavla Yoga Institute. ISBN 81-901176-96.
- Strauss, Sarah (2005). Positioning Yoga: balancing acts across cultures. Berg. ISBN 978-1-85973-739-2. OCLC 290552174.
- Swanson, Ann (2019). Science of yoga : understand the anatomy and physiology to perfect your practice. New York, New York: DK Publishing. ISBN 978-1-4654-7935-8. OCLC 1030608283.
- Syman, Stefanie (2010). The Subtle Body : the Story of Yoga in America. Farrar, Straus and Giroux. ISBN 978-0-374-53284-0. OCLC 456171421.
- Tiruka (1977). Suryanamaskara (in Kannada). Malladhihalli: Sarvodaya Mudranalaya, Anathasevashrama Trust. p. v. OCLC 20519100.
- Van Gennep, Arnold (1965) . The Rites of Passage. Routledge & Kegan Paul. OCLC 752944237.
- Veenhof, Douglas (2011). White Lama: The Life of Tantric Yogi Theos Bernard, Tibet's Emissary to the New World. Harmony Books. ISBN 978-0-385-51432-3.
- Vishnudevananda, Swami (1988) . The Complete Illustrated Book of Yoga. Three Rivers Press. ISBN 0-517-88431-3.
- Yogendra (1928). Yoga Asanas Simplified. The Yoga Institute. OCLC 58817499.
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