Researchers at Columbus Children's Research Institute studied injuries associated with mini trampolines as opposed to those previously connected to full-sized ones.

The study finds injuries sustained on small, jogging or exercise trampolines are similar to those found on full-sized trampolines. The findings are published in the July issue of Pediatrics.

Researchers analyzed injury data from 137 mini-trampoline and 143 full-sized trampoline related injuries randomly selected from all trampoline injuries reported to the National Electronic Injury Surveillance System (NEISS) from 1990-2002.

Although the injuries included patients aged 1-80 years old, 82-percent of mini trampoline and 91-percent of full-sized trampoline injuries occured in persons under the age of 18.

The research found 32-percent of mini trampoline injuries and 19-percent of full-sized trampoline injuries were to children younger than 6. Children under the age of 6 were also more likely to be injured on a mini trampoline. The most frequent injury being head laceration.

Children 6-17 were more likely to suffer lower extremity strains or sprains-whether on a mini or full-sized trampoline.

More girls than boys were injured on a trampoline.

An injury on a full-sized trampoline was more likely to result in hospitalization than an injury associated with a mini trampoline.