Trampolines provide a fun and popular pastime enjoyed by people of all ages. They are relatively inexpensive to buy and can be set-up for use in your backyard providing you have sufficient space available. There are also trampoline clubs which are usually provided by a school or college for the use of their students. Mini trampolines are also used in many fitness clubs and homes as a way to improve physical fitness. Trampolines are also used in gymnastics by gymnasts who use them to perform twists and somersaults. Trampolining is now an Olympic sport which was first introduced in the year 2000 Olympic games.,Trampolines in their present form originate from the year 1936 when George Nissen and Larry Griswold built a trampoline after being inspired by watching trapeze artists at a circus. In 1942 they began manufacturing trampolines on a commercial basis.,Trampolines are most commonly used for recreational purposes. They are popular with children and are available in a variety of shapes and sizes. It is possible to purchase round, square and even octagonal models. Usually, the springs are weaker than their gymnastic counterparts and they are not so sturdily constructed. Recreational models often come fitted with a net enclosure in order to improve safety.,Trampolines used in sport and competitions usually are foldable as they are quite large, much larger than recreation models. Coiled steel springs are used to give the trampoline its bounce. It is possible for a highly trained and skillful gymnast to reach a height of up to thirty-three feet using a competitive trampoline.,Rebounder trampolines are becoming increasingly popular as a way to improve physical fitness, they are also known as trampettes, jogging trampolines and mini trampolines. Mini trampolines are quite small and usually measure around three-feet across, some can be folded for easy storage. Rebounding trampolines provide a way to get fit without putting undue stress on the knees or other joints. Because these trampolines are so small it is not possible to bounce very high using them. They sometimes come with a bar which you can hold on to with your hands to prevent you from falling over while exercising. Using a mini rebounder is a good form of low impact training.,Trampoline safety is always an important consideration. There should always be someone supervising just in case of an accident. Many recreational trampolines are equipped with a safety enclosure. This helps to prevent people falling off the trampoline and landing on the ground. However, many trampoline accidents occur due to trampolinists landing on their heads and necks resulting in spinal injuries. This is often due to the participants attempting to perform complex jumps such as somersaults without having had adequate training.,In conclusion, trampolines provide a fun and healthy method of exercise, but you do need to be aware of safety concerns. If you are interested in taking up this pastime it would be a good idea to join a local club or to contact your local sports center who will be happy to offer you further advice.