Crunch
Lie on your back with your knees and hips bent to about 90 degrees, keeps your arms crossed. Raise your upper body off the floor by crunching your ribcage towards your pelvis. Finally, lower yourself to the starting position.
Lie on your back with your knees and hips bent to about 90 degrees, keeps your arms crossed. Raise your upper body off the floor by crunching your ribcage towards your pelvis. Finally, lower yourself to the starting position.