I use the "chair" as well as the front leaning rest. My youngest son is 4 now and still can't quite get the whole push up thing going, so the front leaning rest works for him, but if he doesn't want to do that I put him in the chair. The chair is good for his legs. My oldest son does pushups, he's 8. My daughter is 5 and can't get the push up thing either, so it's the front leaning rest and chair for her as well.