With little kids, it helps that they weigh like 40 pounds. I think it was Lyle who pointed out that most 7-year-old girl gymnasts can embarrass the shit out of most well-trained adult men in bodyweight strength stuff.
well ya for sure that helps but when i was that young, if could barely do pushups HEH! didn't even know what a pullup was... so yea these kids definitely have an edge with training like this at a young age, i really do love this kind of training for young kids, properly implemented of course, without a TON of intense landings.. moderate gymnastics/bodyweight training at a young age has very impressive results down the road, wish i had done that stuff when i was young.
i found a vert of some really young gymnastics girl it looked near 20, she must have been about 8 years old, i think i linked it on here.. was very impressive.. all of the boys i tested during camps at memorial sportscenter, you'd be extremely lucky to get a 12 inch vert at age 8 ehehe.
peace