Illustration of the Machine Crunch: Crunch the ribs to the pelvis and hold two seconds at the bottom.

isolation · Core

Machine Crunch

Machine Crunch is an isolation core movement for abs, using Ab Crunch Machine. 3 sets of 12-20, 1 min rest.

Primary muscle: Abs
Equipment: Ab Crunch Machine
Difficulty: Beginner
Sets and reps: 3 × 12-20
Rest: 60s
Force: pull

How to do it

1
Set up
Seat set so the pivot lines up with the belly button, hands on the handles.
2
The cue that matters
Crunch the ribs to the pelvis and hold two seconds at the bottom.
3
Work it
3 sets of 12-20, resting about 1 minute between them.