Ab Mat Sit-up

The Ab Mat Sit-up targets your abdominal muscles while providing support for your lower back.

  1. Lie on your back on an ab mat with your knees bent and feet flat on the floor.
  2. Cross your arms over your chest or place your hands behind your head.
  3. Engage your core and lift your upper body towards your knees.
  4. Lower back down to the starting position with control.

How to perform the Ab Mat Sit-up

  1. Set up. Set up in a stable, balanced starting position appropriate for the Ab Mat Sit-up using your body weight.
  2. Brace and execute. Brace your core, control the descent, and move through a full pain-free range of motion while emphasizing your abdominals.
  3. Reset. Reverse the movement under control and reset between repetitions, keeping your form crisp on every rep.

Coaching cues

  • Move with intent — every rep should feel deliberate, not rushed.
  • Drive force through your abdominals rather than momentum.
  • Keep your breathing steady: exhale on the hard part, inhale on the reset.

Common mistakes

  • Using too much weight and losing positional control.
  • Cutting the range of motion short and missing the target muscle.
  • Letting your spine round or hyperextend instead of staying neutral.

Detailed cues, common mistakes, and demonstration video are available in the Fitly app.

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