TheCartographer's Review Of Janda Sit-Up

Dec 25, 2009 1:16 PM: Isn't this just another variation or a sit-up? Which can ruin your lower back. Isn't this just another variation or a sit-up? Which can ruin your lower back.-See Less

Dec 27, 2009 2:55 PM: the entire point of exersise is to destroy your muscles, when you eat/sleep your muscles repair themselves and make themselves bigger/stronger so that the next time you do whatever you just did won't do as much damage, so yes it can ruin your back if you have a weak back but if you keep neglecting your...+See More the entire point of exersise is to destroy your muscles, when you eat/sleep your muscles repair themselves and make themselves bigger/stronger so that the next time you do whatever you just did won't do as much damage, so yes it can ruin your back if you have a weak back but if you keep neglecting your back your could get seriously injured from something such as falling down.-See Less