Ab Coaster

How to do it

1. Sit into the Ab Coaster machine and grip the handles at your sides with the knee pad braced against your shins.
2. Set your feet on the footrests and align your hips at the pivot point of the carriage.
3. Curl your knees up and in toward your chest by contracting the core, not by pulling with the arms.
4. Round the lower back slightly as the carriage glides forward to deepen the crunch through the abdominals.
5. Pause briefly at the top of the movement before controlling the carriage back to the starting position.
6. Exhale during the curl and inhale as you return, avoiding using momentum to swing the carriage.

Muscles worked

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