- Powerbocking
Powerbocking is the act of jumping and running, much like
parkour , with elastic-like spring-loadedstilts . For some it is anextreme sport , for others it is a form of exercise or even a means of artistic expression. The use of the stilts to perform extreme jumping, running and acrobatics is known as 'Bocking' or 'PowerBocking' after the inventor. Powerisers are occasionally known as Kangaroo Boots Fact|date=August 2008 because of their resemblance to the legs of the animal.Each boot consists of a foot-plate with
snowboard type bindings, rubber foot pad which is also commonly called a hoof, and afibreglass leaf spring . Using only their weight, and few movements, the user is generally able to jump 3–5 ft (1–1.5 meters) off the ground and run up to 20 mph (32 km/h). They also give the ability to take up to 9-foot strides.cite web|url=http://www.dailymail.co.uk/pages/live/articles/health/dietfitness.html?in_article_id=420612|title=Zebedee Workout|publisher=Daily Mail]Brands
They were originally patented by Alexander Böck, from Germany (European Patent EP 1 196 220 B1 on
July 2 ,2003 , US Patent No. 6,719,671 B1 onApril 13 ,2004 , both with a priority date ofJuly 20 ,1999 ), as "Powerskips". The name of "PowerBocks" is derived from Mr. Böck's name.The original "Powerskips" are considered a brand for professional and serious enthusiast use, costing in excess of US$1000. The other professional brand is "Velocity Stilts". Velocity Stilts are Powerskips that have been modified with different bindings and stripped down to minimize weight, and resold by Stiltwerks, inc. Velocity Stilts occasionally retain the Powerskip logo on some parts.
There are 4 main companies producing lower cost powerbocks for hobbyists. "Fly Jumpers", "PoweriZers (now also called PowerStriders)" and "Pro Jumps" are some of the numerous different vendors of identical models produced by one company in China called Flying Locust. "Poweriser" brand powerbocks were produced by Korean Company but actually manufactured in Philippines. "7 League Boots" are produced by an Austrian company and are the most expensive of the non-pro brands. The fourth is called Skyrunner, which does not pay royalties to Alexander Böck and is illegal in copyright-protected countries.
Notes
* [http://www.washingtonpost.com/wp-dyn/content/article/2007/10/26/AR2007102602492.html] Washington Post
* [http://www.doeswhat.com/2008/05/17/powerisers-2008-model-review/] DoesWhatExternal links
* [http://www.google.com/patents?vid=USPAT6719671 Patent for the original PowerSkip, by Alexander Boeck]
* [http://jsbrands.wz.cz/ List of jumping stilts brands]
* [http://newsimg.bbc.co.uk/media/images/44452000/jpg/_44452222_bocker.jpgImage of Man Powerbocking]BBC
* [http://www.treehugger.com/files/2006/04/poweriser_alter.php Poweriser: Alternative Commuting by Pogo-Stilts]Treehugger.com 2006-04-29
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