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Exercise preview

Stability ball hamstring curl

Beginner10 repsNo jumping

Muscles worked

You need

How to do it

  1. Lie on your back, heels on a stability ball, arms flat, and core engaged.
  2. Lift hips, curl the ball toward you using your hamstrings, keeping control and balance.
  3. Extend legs back to start while keeping hips lifted, then repeat for desired reps.