Ab Crunch Machine
Muscles worked: Abs.
How to do it
- Select a light resistance and sit down on the ab machine placing your feet under the pads provided and grabbing the top handles.
- At the same time, begin to lift the legs up as you crunch your upper torso.
- After a second pause, slowly return to the starting position as you breathe in.
- Repeat the movement for the prescribed amount of repetitions.
Coaching cues
The two cues IronPack shows on this exercise's card mid-workout:
- Move the ribs toward the hips
- Exhale hard into the squeeze
Logging it
IronPack suggests working in the 10 to 15 rep range, progressing in 5 kg jumps when you own the top of the range. Records are tracked automatically at every rep count from 1 to 12. Check your estimated 1RM from any hard set.
Related exercises
- Cable Crunch - abs
- Hanging Leg Raise - abs
- Ab Wheel Rollout - abs
- Decline Sit-Up - abs
Track the ab crunch machine properly
IronPack logs every set, tracks your records at every rep count, shows these form photos mid-workout, and turns the training into a card game you play with your mates.
Get IronPack free on the App StoreFree download, iPhone. Currently on the New Zealand App Store, wider rollout to follow.
Photos and steps: free-exercise-db (public domain). Cues, muscle weighting and logging guidance are IronPack's own app data. Last generated 2026-07-17.