My DD seems to have a particular aversion to pike stretches. She has her splits, both ways, and can get flat to the floor on a straddle stretch, but the pike is not pretty. Obviously practicing several times a day (that's what her coach told her to do) will help. Just wondered if there were any other ideas to help her improve and exactly which muscle groups this stretch works. Is it mostly back or more hamstring? Just curious...and thanks for any advice!