you know them excersize things you put on your stomache and it excersizes the muscles for youu to make you skinnier.. .. can they damage anythin or cause you harm..I'm 13 nearly 14.. so yeah .. thankss for any help :) xxx
There are a couple stomach exercises that could hurt your back but unless you've had back injuries before don't worry about it because it won't be sudden or anything. The only ones that hurt my back is the "V up"(you lift your upper and lower body to where the velcrum is your tailbone) and "the frogger aka kickouts"(you're still balancing yourself on your tailbone but kicking out with your legs and bringing them back in to your chest).
