Wednesday, May 29, 2013


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The first modern Trampoline was built by George Nissen and Larry Griswold in 1936. Nissen was a gymnastics and diving competitor and Griswold was a tumbler on the gymnastics team, both at the University of Iowa, USA. They had observed trapeze artists using a tight net to add entertainment value to their performance and experimented by stretching a piece of canvas, in which they had inserted grommets along each side, to an angle iron frame by means of coiled springs. It was initially used to train tumblers but soon became popular in its own right. Nissen explained that the name came from the Spanish trampolĂ­n, meaning a diving board. George Nissen had heard the word on a demonstration tour in Mexico in the late 1930's and decided to use an anglicized form as the trademark for the apparatus.
In 1942, Griswold and Nissen created the Griswold-Nissen Trampoline & Tumbling Company, and began making trampolines commercially in Cedar Rapids, Iowa.
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Trampoline as Sport
The competitive gymnastic sport of trampolining has been part of the Olympic Games since 2000. On a modern competitive trampoline, a skilled athlete can bounce to a height of up to 10 meters (33 ft), performing multiple somersaults and twists. Trampolines also feature in the competitive sport of Slamball, a variant of basketball, and Toss a ball, a variant of volleyball.

Safe use of the Trampoline

Family-oriented commercial areas in North America such as shopping centers, carnivals, and so on, often include closed inflatable trampolines (CITs) as a children's attraction. These have safety nets on the sides to prevent injuries.
Using a Trampoline can be dangerous, and in organized clubs and gyms there are usually large safety end-decks with foam pads at each end and spotters placed alongside the trampoline to try to break the fall of any athlete who loses control and falls. The majority of injuries occur on privately owned home trampolines. Bouncing off a trampoline can result in a fall of 3–4 meters (10–13 ft) from the peak of a bounce to the ground or a fall into the suspension springs and frame.

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