Ab Crunch.

Make every rep count.

1. 01

   Lie on your back with knees bent and feet flat. Relax your neck, keep your lower back gently pressed into the floor, and cross your hands over your chest.

2. 02

   Exhale and brace your core, then curl your shoulders and upper back off the floor by squeezing your abs (think “ribcage toward pelvis”). Keep your chin slightly tucked—don’t pull on your head or lead with your neck.

3. 03

   Pause briefly at the top when your abs are fully tightened.

4. 04

   Inhale as you lower down slowly with control until your upper back returns to the floor.

5. 05

   Repeat for the prescribed reps, keeping the movement small, smooth, and focused on your abs.