Trampolines - A Buyer’s Guide
Trampolines today come in all shapes and sizes with a variety of different design goals determining their specifics. Which one is right for you depends on your own goals in buying one.
For a little lightweight exercise in the home a small, round mini-trampoline (or trampette) might be the perfect choice. Low to the ground, they’re good for the elderly who want to get a little bit of fun, gentle cardiovascular exercise. Short, easy bounces help develop leg muscle strength and joint flexibility.
On the other extreme, there are those who may be training for the relatively new Olympic sport of trampolining. With these large, ultra-strong trampolines it is possible to develop routines that are world class. High jumps, sometimes done with bungee cords attached, triple somersaults and a combination of moves can form a complex set.
The choice of construction method will be influenced by your goals, as well. Trampoline surfaces today are attached in one of two ways: springs or elastic bands. Elastic band trampolines are very safe, and often less expensive. But they don’t provide quite the amount of bounce of their more traditional spring-style cousins.
The total bounce height and speed are determined by a combination of the spring tension and the elasticity of the surface. Higher spring tension gives a stronger rebound. The elastic surface itself, obviously, acts somewhat like a spring so it too contributes to the total.
Think about the level of activity you intend and the results you want to achieve. Do you want to work up to Olympic level acrobatics, or just get some fun and healthy exercise?
The size chosen will be influenced by the amount of people intended to use the trampoline at one time. Most safety experts point out that accidents are more common when the trampoline is in use by two or more people. But with proper precautions, a large trampoline can safely accommodate more than one. Make sure to get one at least 12 feet (3.5 m) in diameter, preferably 14 feet (4.2 m).
At the same time, if you intend the trampoline to be used by more than one (or for more rigorous use), be sure to get one that can support the total force on it. Many are rated for a single person up to 200lb.
But the factor that is most important is not just a person’s weight, but the product of their weight and the jump height. A 150lb person who falls after a jump from a height of 10 feet exerts a lot more force than a 200lb person who only falls 1 foot.
Manufacturers can’t predict how high someone might jump and they can’t convey a lot of complex physics to potential buyers. So they take the reasonable short-cut of simply rating according to maximum weight. But keep the expected activity level in mind when purchasing.
Always buy the sturdiest, most well-built trampoline you can afford. Good surface material, with proper supports on a sturdy frame, will provide the longest lasting, safest trampoline.