||It has been suggested that urbanlining be merged into this article. (Discuss) Proposed since January 2013.|
Slacklining is a practice in balance that typically uses nylon or polyester webbing tensioned between two anchor points. Many people suggest slacklining is distinct from tightrope walking in that the line is not held rigidly taut (although it is still under some tension); it is instead dynamic, stretching and bouncing like a long and narrow trampoline. The line's tension can be adjusted to suit the user and different types of webbing can be used to achieve a variety of feats. The line itself is usually flat, due to the nature of webbing, thus keeping one's footing from rolling as would be the case with an ordinary rope. The dynamic nature of the line allows for tricks and stunts. Slacklining has quickly become popular due to its simplicity and versatility and its ability to be practised in a variety of environments. Those who participate in slacklining are often called "slackers".
Slackline setup 
The most common slackline setup includes two separate sections. The first section is a long (30 ft.–100 ft.) piece of two-inch or one-inch webbing with a loop sewn on one end, allowing it to cinch tightly around a tree. The second section is typically much shorter (10 ft.) and has a similar sewn loop on one end, allowing it to cinch around a tree while the other end of this shorter piece of webbing is sewn to a ratchet. The ratchet allows these two sections of webbing to be connected and tensioned to the user's specifications.
A more traditional slackline setup includes three sections of one-inch webbing: a long section of webbing (30 ft.–100 ft.) strung tightly and connected to the two shorter sections (8–12 ft.) that are called "tree slings" and are used as anchors on either end. The most difficult and widely discussed element of a slackline setup is the tensioning system. Common setups include simple friction methods, using wraps of webbing between two carabiners, a ratchet, a comealong, a carabiner pulley system, a roped pulley system, or a commercial slackline kit.
Tree anchors 
The most common anchors for slacklines are trees. Trees greater than 12 inches in diameter are considered ideal in most cases. There are several very effective methods of tree protection that function on two principles: eliminating abrasion, and redistributing the load over a wider area. One of the most effective means of tree protection is a wrap of vertical blocks (1" x 1" cut into 6" pieces) strung together by drilling a small-diameter hole through the center and running cord through them. Blocks are spaced evenly to prevent the anchor slings from contacting and abrading the outer bark, and the length of the blocks distributes the load vertically as opposed to horizontally, compressing a continuous line around the trunk. The addition of a carpet square between the block wrap and the outer bark is considered ideal among the founding community of slackliners. Many other ways to protect the tree are commonly used, such as towels, mats, cardboard, carpet and purpose-made tree protectors.
Using carpet squares or cardboard even, by themselves, addresses only abrasion, leaving the load concentrated on a small area of the tree. These methods are adequate for occasional use, but with the high tension of longlines, one who slacklines regularly should take every precaution to protect the life of the tree.
A special characteristic of slacklining is the ease with which the dynamics of the practice can be altered. Using narrow (5/8-inch) webbing will result in a stretchier slackline. This allows for more sway in the line and can make a short line feel substantially longer. Wider webbing (2 -inch) is much more rigid, often creating a bouncier slackline optimal for aerial tricks. The tension of the line will also increase or decrease the sway of the line. Weight due to the different methods of tensioning will also vary the performance of a slackline. A comealong and a ratchet will both add enough weight to allow the feedback from quick movements on shorter slacklines to be felt.
Styles of slacklining 
Urbanlining or urban slacklining combines all the different styles of slacklining. It is practiced in urban areas, for example in city parks and on the streets. Most urban slackliners prefer wide 2-inch lines for tricklining on the streets, but some may use narrow (5/8-inch or 1-inch) lines for longline purposes or for waterlining. Also see the other sections of slackline styles below.
Tricklining has become the most common form of slacklining due to the easy setup of 2-inch slackline kits. Tricklining is often done low to the ground but can be done on highlines as well. A great number of tricks can be done on the line, and because the sport is fairly new, there is plenty of room for new tricks. Some of the basic tricks done today are walking, walking backwards, turns, drop knee, running and jumping onto the slackline to start walking, and bounce walking. Some intermediate tricks include: Buddha sit, sitting down, lying down, cross-legged knee drop, surfing forward, surfing sideways, and jump turns, or "180s." Some of the advanced tricks are: jumps, tree plants, jumping from line-to-line, 360s, butt bounces, and chest bounces. With advancements in webbing technology the limits for what can be done on a slackline are being pushed constantly. It is not uncommon to see expert slackliners incorporating flips and twists into slackline trick combos.
Waterlining is slacklining over water. This is an ideal way to learn new tricks, or to just have more fun. Common places to set up waterlines are over pools, lakes, rivers, creeks, between pier or railroad track pillars, and boat docks. The slackline can be set up high over the surface of the water, close to the surface or even underneath the surface, allowing for a very unique experience. It is important, however, that the water be deep enough, free from obstacles, and that the area should not be traveled by boats.
Highlining is slacklining at elevation above the ground or water. Many slackliners consider highlining to be the pinnacle of the sport. Highlines are commonly set up in locations that have been used or are still used for Tyrolean traverse. When rigging highlines, experienced slackers take measures to ensure that solid, redundant and equalized anchors are used to secure the line into position. Modern highline rigging typically entails a mainline of webbing, backup webbing, and either climbing rope or amsteel rope for redundancy. However, many highlines are rigged with a mainline and backup only, especially if the highline is low tension (less than 900 lbf.), or rigged with high quality webbing like Type 18 or MKII Spider Silk. It is also common to pad all areas of the rigging which might come in contact with abrasive surfaces. To ensure safety, most highliners wear a climbing harness or swami belt with a leash attached to the slackline itself. Leash-less, or "free-solo" slacklining – a term borrowed from rockclimbing – is not unheard of, however, with exponents such as Dean Potter and Andy Lewis.
Slackline Yoga 
Another form of slacklining is Slackline Yoga, also referred to as YogaSlacking or Slackasana. Slackline Yoga takes traditional yoga poses and moves them to the slackline. It has been described as "distilling the art of yogic concentration." To balance on a 1" piece of webbing lightly tensioned between two trees is not easy, and doing yoga poses on it is even more challenging. The practice has many layers, simultaneously developing focus, dynamic balance, power, breath, core integration, flexibility, and confidence. Utilizing standing postures, sitting postures, arm balances, kneeling postures, inversions and unique vinyasa, a skilled slackline yogi is able to create a flowing yoga practice without ever falling from the line.
In 2005, Sam Salwei and Jason Magness began demonstrating yoga poses on a slackline at the Yoga Journal conference in Estes Park, later forming YogaSlackers. Since then, the members of team YogaSlackers have collectively taught over 5000 people to successfully embrace this form of asana. They have developed a special slackline and simple tensioning system, allowing for practitioners to learn safely and experience the benefit of a wide range of dynamic energies while on the line.
Another group of "slackline yogis" are the Rocky Mountain Slackline Crew out of Fort Collins, Co. The company has been involved with local and state wide yoga studios incorporating slackline into their class curriculum. They have created a series of postures, maneuvers, and breath rhythm to bring the riders a challenging and rewarding experience.
Freestyle slacklining 
Freestyle slacklining (a.k.a. “rodeo slacklining") is the art and practice of cultivating balance on a piece of rope or webbing draped slack between two anchor points, typically about 15 to 30 feet long and a couple feet off the ground in the center. This type of very "slack" slackline provides a wide array of opportunities for both swinging and static maneuvers. A freestyle slackline has no tension in it, while both traditional slacklines and tightropes are tensioned. This slackness in the rope or webbing allows it to swing at large amplitudes and adds a different dynamic. This form of slacklining first came into popularity in 1999, through a group of students from Colby College, in Waterville ME. It was first written about on a website called the "Vultures Peak Center for Freestyle and Rodeo Slackline Research" in 2004. The article "Old Revolution - New Recognition - 3-10-04" describes these early developments in detail.
Timelining and Streetlining 
In beautiful country of Slovenia lives a guy named Simon Grižon, who is developing new concepts of slacklining.
First category is called timelining, which means a person is trying to be on slackline for as long as possible without falling down - one hour, two hours etc. This takes tremendous concentration and focus of will. This is a great endurance training for postural muscles.
Second is streetlining which is combining street workout power moves with slackline dynamic shaky bouncy feeling. Main focus are static handstands, super splits - hands and feet together, planche, front lever, back lever, one arm handstand and other interesting extreme moves that are evolving in street workout culture.
The inspiration comes from within by mindful meditation. In body and mind development it is important to have a balance between hard and soft exercises.
While rope walking has been around in one manner or another for thousands of years, the origins of modern day slacklining are generally attributed to a pair of rock climbers while attending Olympia, Washington's The Evergreen State College in 1979. Adam Grosowsky and Jeff Ellington started walking on loose chains and cables around Olympia, and quickly innovated the technique of stringing up 1" flat climbing webbing and walking it, employing the dynamics and flexibility of the nylon webbing to develop tricks, including a three-club passing (juggling) routine between two slackliners balanced simultaneously on the same line. Red Square, Evergreen's central campus plaza, was a convenient between-class practice area where they often drew crowds of spectators. Brooke Sandahl, another Evergreen student and frequent climbing partner of Grosowsky and Ellington, was another very early practitioner. Grosowsky and Ellington were fascinated with wirewalking history and circus culture, and in 1981 performed leashless on a 30' highline strung 25' over a concrete floor as part of a project to recreate a traditional one-ring circus in The Evergreen State College's main performance auditorium. During this period Grosowsky, who is now a regionally well-known Northwest artist, devoted much of his lithographic art to themes involving wirewalking and circus culture. The sport blossomed within the West Coast rock climbing community, and then branched out elsewhere all over the world.
Highlining history 
In 1983, Adam Grosowsky and Jeff Ellington set up a 55-foot (17 m) cable line at Yosemite's Lost Arrow Spire that was nearly 2,890 feet (880 m) high. However, neither of them were able to cross this line. The next year, Scott Balcom and Darrin Carter set up a highline in the same location, but used webbing instead of cable. In 1985, Scott Balcom crossed the now-famous line. In 1993, Darrin Carter became the second person to successfully cross the Lost Arrow Spire highline. On July 16, 2007, Libby Sauter became the first woman to successfully cross, with Jenna McLennan walking it shortly after. On September 10, 2011, Chris Rigby and Balance Community: Slackline Outfitters owner Jerry Miszewski established the Balance Community Highline Festival in Garden Valley, California. There has been a highline fest each month since; nine highlines are set up, ranging 35 to 400 feet long for highliners from across the U.S. to come train on.
Competitive sport history 
Since 2010 the World Slackline Federation tries to establish tricklining as a competitive sport. Jumps and other tricks are judged according to five criteria: Difficulty, technique, diversity, amplitude (of jumps) and performance. Competitions are held on several levels.
Tricklining history 
Andy Lewis is known for having the longest history in competitive slacklining. He is considered to be the father of modern day tricklining and has been the Overall World Champion of Competitive Tricklining since 2008. To date, he holds more prestigious international competition titles than anyone. In 2012, he performed a series of tricks during Madonna's Super Bowl XLVI Halftime Show, to a worldwide audience of 114 million people.
World records 
|This section's listed sources may not meet Wikipedia's guidelines for reliable sources. (September 2010)|
||This section may contain original research. (January 2013)|
Longest highline 
The longest highline walked thus far 451 foot (137.5m) by Jerry Misewski. Second largest is 'Bigger Than Youros' at Cosumnes River Gorge in California. This line is 390 ft. (118m) long and 200 ft. (60m) high and was walked one direction by Jerry Miszewski of Balance Community: Slackline Outfitters and Alex Schulz of Elephant Slacklines on December 21, 2011. This line broke the previous record line of 377 ft. (115m) that was walked on June 21, 2011 in Millau, France by the same two men. The longest female send of a highline to date is "Master of the Universe" which is 96.5 meters long and 35 meters high, walked by Faith Dickey one direction in September, 2012.
Michael Kemeter's highline world record length of 86 metres (282 ft) was exceeded in August 2010 by American Jerry Miszewski in Ostrov, Czech Republic, who walked a highline 95 metres (312 ft) in length. A few weeks later, on September 10, 2010, Andy Lewis (USA) exceeded Jerry's record by walking a 103.5 metres (340 ft) long highline in Moab, UT.
Longest free solo highline 
The longest free solo highline by a female is held by Faith Dickey, who walked a 28 meter long highline in Ostrov, Czech Republic in August, 2012. The line was 25 meters high.
Highest slackline 
The highest slackline on record was walked by Christian Schou on August 3, 2006 at Kjerag in Rogaland, Norway. The slackline was 1,000 metres (3,281 ft) high. The project was repeated by Aleksander Mork in September 2007. Just for fun and by the fact there was no earlier 1000m-approved Guinness-World-Record(GWR) Aleksander signed a "GWR-agreement/contract" with Schibsted Forlag representing GWR in Norway. Schibsted was represented by 2 observers and Aleksander received the first official GWR-certificate onsite at Kjerag. The stunt was successfully performed under strong wind and rough weather condtitions. With respect the record attempt was clarified with Christian Schou - who received a GWR-certificate several months later. In April 2012 Dean Potter crossed the Enshi Grand Canyon in China's Hubei Province for a distance of 40m (44 yards) in just over two minutes at an elevation of 1,800m (1,968 yards) above sea level, according to Chinese state media.
Longest slackline 
The longest slackline, with a length of 494 metres (1,621 ft), was walked on May 17, 2012 by Jerry Miszewski in one direction. The longest slackline walked by a woman was set in 2011 by Faith Dickey, a length of 220 meters in Prague, Czech Republic.
Longest slackline history 
Long slackline walking was pioneered most notably by Dean Potter, Larry Harpe, Ammon McNeely, and Braden Mayfield. Rumors of 200–300 foot slacklines were talked about; however, there is no known official line length record from this period.
Heinz Zak, extreme climber and photographer, was one of the first to go on record for long slacklining with his walk of a 328-foot (100 m) line in August 2005. This record stood until March 4, 2007, when Damian Cooksey walked a 405-foot (123.5 m) line in Warsaw, Poland.
Stefan Junghannß and Damian Jörren were the first walking more than 200m (203m onsight full man, March 16, 2009).
Michael Kemeter (onsight) and Michael Aschaber from Austria were following with a length of 217 metres (712 ft) on September 18, 2009.
See also 
- What is Slacklining?
- Five-Carabiner Pulley System Video on YouTube.com
- How To Build a Five-carabiner Pulley System Step-by-Step Instructions
- How To Walk a Slackline
- How To Jump Line-To-Line
- "US slackline walker Dean Potter crosses China canyon". BBC News. April 23, 2012.
- April 5, 2008 Into the Wild With Yoga: An extreme athlete with no fixed address is pioneering a new form of yoga. Inside the world of adventure addicts: "Jason Magness meditates in full-lotus posture balanced on a slackline over the Arizona desert .. He's also the innovator of slackline yoga and is one of its few masters" from Wall Street Journal writer Alexandra Alter, retrieved November 8, 2012.
Yoga Slacklining in Yoga Journal via AdiCarter.com
A climbing yogi has found a unique way to improve his balance, focus, and core strength: doing yoga poses on a slackline by Yoga Journal writer Mary Bolster, retrieved November 8, 2012
Yoga Slacklining in Climbing Magazine via AdiCarter.com
Highballin’ – The Spot Gym Goes Off for Highball Comp: "they ran a slackline 20-feet in the air and tied in some of the area’s most balanced men and women for toproped highline highjinx .. The high-line event, which took place January 24, 2009, was a best-trick competition, with each slacker receiving three minutes to show their skills. Highlights included Greg Kalfa’s ballsy backflip attempt and Josh Beau, looking as at home on the webbing as anyone else did on the ground (especially during his side-plank and other yoga-inspired moves)." by Climbing.com author Ryan Nadlonek reporting on a 2009 event, retrieved November 8, 2012.
- Footage of the first crossing on July 13, 1985 by Scott Balcom
- History of Slacklining
- The History of Slacklining
- World Slackline Federation: Rulebook, July 2012
- Misweski, Jerry. "451 foot highline".
- "US slackline walker Dean Potter crosses China canyon". BBC News. April 23, 2012.
- Climber crosses canyon on slackline - Australian Broadcasting Corporation - Retrieved 25 April 2012.
- 328 foot (100 meter) line
- 405 foot (123.5 meter) line
- 666 foot (203 meter) line
|Wikimedia Commons has media related to: Slacklining|
- SlackLink.org: Online Slackline Resource
- Slackline history
- The History of Slacklining
- Slackline Tricks Encyclopedia
- Linn Broden Slack Rope Artist
- persian slackline community