Endless fun while jumping on a trampoline.
Trampolines, those iconic bastions of childhood, evoke memories of warm happy summers and split-second weightlessness. Modern times have evolved the trampoline even further into a tool for weight loss and an official Olympic sport. Whether the springs of a trampoline are rebounding an 8-year-old or an Olympian into mid-air, enjoyment can be had.
History
Trampolines, in various forms, have long withstood the test of time in many cultures. USA Gymnastics notes, "Trampoline and tumbling can be traced to archaeological drawings in ancient China, Egypt and Persia." There is photographic evidence of Eskimo cultures in later time periods using skins to bounce people in the air for celebration and entertainment. In the 1930s, George Nissen, with the help of Larry Griswold, created what we know as the modern portable trampoline. Trampolines were utilized in World War II for troop training, and after that for the training of astronauts. Trampoline competitions began in the late 1940s and trampolining became an Olympic sport in 2000.
Recreational Design
Basic trampolines are constructed of a metal frame, with canvas or another similar material held in the frame by a number of springs. This design is placed on metal legs, and surrounded by padding or a net-like enclosure. Some trampolines have an upright bar included to hold onto when jumping. Recreational or backyard trampoline frames, legs and springs are generally constructed of light metals that include steel for strength. Their jumping mats can be waterproof. Round, octagonal and rectangle are common backyard trampoline shapes, that range in size from 6 to 16 feet in diameter. Some modern recreational trampolines do not use springs, but rather fiberglass rods that are placed underneath the jumping mat. These trampolines are purported to be safer than the traditional trampoline.
Competition Design
The most expensive, safely designed, and strongest trampolines are made for the Olympic sport, and also for divers, circus performers, and skiers to use as training tools. Olympic or competition trampoline jumping mats are made from the most porous material, to allow for air flow that increases bounce. They also are made with thicker side padding than regular trampolines to provide extra safety. Competition trampolines are most always rectangular, a shape that encourages the most rebound, and 14 to 17 feet in length. Competition trampolines have the most springs of any of the trampoline designs to provide the most bounce.
Exercise Design
The mini trampoline is most often used for exercise. Mini trampolines are characterized by a small frame that can be taken apart and stored if needed. They most often have an upright bar to hang onto when exercising. Mini trampolines generally range from 35 inches to 50 inches in diameter. Increased balance and low impact are benefits of working out on a mini trampoline.
Safety
While trampolines are fun and an excellent source of exercise, they also can be dangerous. If not used properly and with supervision, trampolines can cause serious injuries, including damage to the spine or head and broken bones. Trampoline injuries are common. The U.S. Consumer Product Safety Commission "estimates that in 2001 there were 91,870 hospital emergency room-treated injuries associated with trampolines". Install a safety fence, allow only one person to jump at a time, inspect your trampoline regularly for loose or weak parts and always supervise trampoline use to reduce the risk for injuries.
Tags: Olympic sport, backyard trampoline, Competition trampolines, have upright, jumping mats
