Looking to tone my midsection (abs, stomach, call it what you will). I've tried sit ups and simply cannot do them--Hurts my back too much to do three of 'em! I'm not huge or anything (5'2ish, ~120#), but I want to tone up...
I don't want to use weights or machines. I wanna use my own body.
I don't want to use weights or machines. I wanna use my own body.