Mimitoys recently got a query on whether it is safer to sink trampolines into a hole in the ground than have them at normal height. On the face of it, it seems to make sense that the lower the trampoline, the lower the risk of injury from falling. When we put the question to TP Toys, however, we got a surprising response - sinking a trampoline so that the bounce mat is at ground level can be MORE dangerous than leaving it at normal height. Myles explains why:
Without a surround, injuries can be greater when the trampoline is sunk into the ground. Counterintuitive I know, but apparently when bouncing from ground level you become more reckless because you perceive the risk to be less - after all you are closer to the ground. This perception leads to more reckless bouncing, which means more landing off the bounce mat leading to a greater possibility of injury. Without a surround this can mean broken bones, whilst with a surround it can mean more ligament and tendon injuries than you would have with a normal elevated trampoline.
Mind the gap! Trampoline legs are wider at the base than at the frame - they splay out to give greater stability. Therefore there will be roughly a 12 inch gap between the edge of the hole and the outside edge of the bounce frame. That gap, if uncovered, is a hazard for adult and children’s legs.
Specific to our TP Trampolines, TP has stated that it assumes that any hole will not be drained and therefore will fill with water during wet periods, increasing the risk of rust damage to the trampoline. If the trampoline is sunk into the ground, the 10 year TP metal warranty (and all other warranties) becomes invalid.
Another safety issue that has been raised during discussions is the danger of children playing underneath the trampoline whilst someone is bouncing on it. I know it makes a great den, but please keep little ones out from underneath!
So, there you have it. TP’s advice seems to be - enjoy your trampoline but put the spades away unless you’re digging a new home for the goldfish!
For more trampoline safety tips, see the advice page on our website. We’d love to hear your opinions and tips to add to our info.