Isometric abdominal flexion in supine

Isometric abdominal flexion in supine

Lie on your back with your lower legs supported by a chair or a box.
Place a pillow under your head in a comfortable position.
Place your hands on your thighs.
Without moving, try to lift your chest off from the floor.
Press your thighs with your hands so that your chest is not lifted.
Hold the position and relax.

Required equipment: Pillow, Bench, Mat, Chair
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