Toning muscles for abs but i have back problems /:?
If you have problems with your back while doing ab exercises, try the following: this one will do the best for you, see how you will be laying on your back, legs in the air: http://www.myfit.ca/exercisedatabase/vie… if you are ready to invest in a ball, try Russian twists, they make waist smaller and abs harder, and your back lays on the ball: http://www.myfit.ca/exercisedatabase/vie… Ball Knee crunches, where you support yourself with the hands: http://www.myfit.ca/exercisedatabase/vie… abdominal dragon flags :
