|Other names||Pelvic floor exercise, pelvic muscle exercise|
Kegel exercise, also known as pelvic-floor exercise, involves repeatedly contracting and relaxing the muscles that form part of the pelvic floor, now sometimes colloquially referred to as the "Kegel muscles". The exercise can be performed many times a day, for several minutes at a time but takes one to three months to begin to have an effect.
Kegel exercises aim to strengthen the pelvic floor muscles. These muscles have many functions within the human body. In women, they are responsible for: holding up the bladder, preventing urinary stress incontinence (especially after childbirth), vaginal and uterine prolapse. In men, these muscles are responsible for: urinary continence, fecal continence, and ejaculation. Several tools exist to help with these exercises, although various studies debate the relative effectiveness of different tools versus traditional exercises.
The American gynecologist Arnold Kegel first published a description of such exercises in 1948.
Mechanism of action
Kegel exercises aim to improve muscle tone by strengthening the pubococcygeus muscles of the pelvic floor. Kegel is a popular[quantify] prescribed exercise for pregnant women to prepare the pelvic floor for physiological stresses of the later stages of pregnancy and childbirth. Various advisors recommend Kegel exercises for treating vaginal prolapse and preventing uterine prolapse in women and for treating prostate pain and swelling resulting from benign prostatic hyperplasia (BPH) and prostatitis in men. Kegel exercises may have benefits in treating urinary incontinence in both men and women. Kegel exercises may also increase sexual gratification, allowing women to complete pompoir and aiding men in reducing premature ejaculation. The many actions performed by Kegel muscles include holding in urine and avoiding defecation. Reproducing this type of muscle action can strengthen the Kegel muscles. The action of slowing or stopping the flow of urine may be used as a test of correct pelvic-floor exercise technique.
The components of levator ani (the pelvic diaphragm), namely pubococcygeus, puborectalis and iliococcygeus, contract and relax as one muscle. Hence pelvic-floor exercises involve the entire levator ani rather than pubococcygeus alone. Pelvic-floor exercises may help in cases of fecal incontinence and in pelvic organ prolapse conditions e.g. rectal prolapse.
Factors such as pregnancy, childbirth, aging, and being overweight often weaken the pelvic muscles. This can be assessed by either digital examination of vaginal pressure or using a Kegel perineometer. Kegel exercises are useful in regaining pelvic floor muscle strength in such cases.
The muscles involved in men's Kegels are called the perineal muscles; these can contract both voluntarily and involuntarily. Kegel exercises can train the perineal muscles by increasing oxygen supply and the strength of those muscles. The names of the perineal muscles are: Ischiocavernosus (erection), bulbocavernosus (ejaculation), external sphincter of the anus, striated urethral sphincter, transverse perineal, levator of the prostate, and puborectalis.
Premature ejaculation is when male ejaculation occurs after less than one minute of penetration. The perineal muscles are involved in ejaculation when they are involuntarily contracted. The ischiocavernosus are responsible for the male erection and the bulbocavernosus is responsible for ejaculation. By actively contracting the perineal muscles with kegels regularly, strength and control of these muscles will increase, which can aid in reducing premature ejaculation.
Pelvic floor exercises (muscle training) can be included in conservative treatment approaches for women with urinary incontinence. There is tentative evidence that biofeedback may give added benefit when used with pelvic floor muscle training. There is no clear evidence that teaching pelvic floor exercises alters the risk of stress urinary incontinence in men that develop this condition post prostatectomy.
In pregnant women, antenatal PFMT probably helps prevent urinary continence during pregnancy and up to six months after giving birth but for pregnant women who already have incontinence, it is not clear if antenatal PFMT helps to reduce symptoms.
Pelvic toning devices
Some devices, marketed to women, are for exercising the pelvic floor muscles and to improve the muscle tone of the pubococcygeal or vaginal muscle.
As of 2013 there was no evidence that doing pelvic floor exercise with weights worked better than doing Kegel exercises without weights; there is greater risk with weights, because a foreign object is introduced into the vagina.
During the latter part of the 20th century, a number of medical and pseudo-medical devices were marketed to consumers as improving sexual performance or orgasms, increasing "energy", "balancing hormones", and as having other health or lifestyle benefits. There is no evidence for any of these claims, and many of them are pseudoscience.
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