Lie on the back, with hands behind the head, thighs vertical, and knees bent.
- Inhale and raise the shoulders off the ground, bringing the knees and head towards each other by crunching, which means rounding the back and rolling the spine up.
- Exhale at the end of the movement.
This exercise mainly uses the rectus abdominis.
To work the obliques more intensely, bring the right elbow to the left knee, then the left elbow to the right knee alternatively with each crunch.
*Perform a crunch by rounding the back and rolling the spine up, bringing the pubis and sternum toward each through voluntary contraction.
