The machine crunch is an isolation exercise that targets the abs, specifically the rectus abdominis. It involves flexing the spine to bring the ribcage towards the pelvis, which activates the core muscles.
machine
Measured by
Position
Adjust the seat height and weight on the machine to your preference. Sit down on the machine with your feet flat on the floor and grab the handles above your head.
Movement
Breathing
Exhale as you crunch your abs and inhale as you return to the starting position.
Tips