Abstract

In 198 people 201 trampoline injuries are analysed. All except three adults were re-examined, following an observation period of one to four years. School children (145) represented the major part of the 195 persons re-examined. Handling the large trampoline injured 21 of the 145 school children and six children at clubs. Injuries of a permanent nature were found in 49 of the 195 who were re-examined. The biomechanics and physiology of trampoline jumping is evaluated. Mismatch of a multitude of sensory impulses (visual, tactile, others) with impulses from the vestibular apparatus converging towards the orientation centres of the brain, may result in disorientation and then in the inadequate motor reactions actually seen at the time of the trampoline accidents. A G-induced split second loss of consciousness is another possible explanation of the trampoline accident. More secure procedures than trampolining as a school-sport and recreational activity are recommended.