Bodyweight Crunch
A step-by-step form guide from the Ægir Iron exercise library: how to do the lift, what to watch for, and the muscles it trains.
- Equipment
- Bodyweight
HOW TO PERFORM
- Lie on your back with the knees bent and feet flat, hands by the ears or across the chest.
- Curl the shoulders and upper back off the floor by shortening the abs, keeping the low back down.
- Pause at the top, then lower under control.
FORM TIPS
- The low back stays on the floor. Coming all the way up to sitting hands the work to the hip flexors, which is a sit-up, a different exercise.
TARGET MUSCLES
Primary
- Abs
Secondary
- Obliques
Log it in Ægir Iron to track your PRs and estimated 1RM, and to see the sets each muscle gets every week. Free for individual lifters.