Abs muscle side jackknife gym pic side jackknife start: lie on your right side, keeping your left leg over your right one, bending your knees slightly. place your... read more
Abs muscle Curl-up gym pic Curl-up start: lie on your back with your feet flat on the floor and knees bent about 60 degrees. position your arms nest to you... read more
Abs muscle scissor kick gym pic scissor kick start: lie on your back with your arms by your sides, palms facing down legs extended with a slight bend in your knee... read more