My DD was playing around on the trampoline on Saturday doing Back handsprings and such and landed on her stomach with her chest lifted. She says she heard a crack and now her lower back is hurting her. We iced it the first day and then yesterday evening started using a heating pad. The ice did not seem to help at all however the heat has helped with the pain. Does this indicate that it is probably a muscle strain since ice has done nothing to help?. My husband has had back problems since he was in his 20's but caused by lifting improperly. What are your thoughts? I hate this and she is soooo upset that she can't go to gymnastics on Tuesday because we thought she probably needs to rest her back for a while.