View this exercise on Fitain

Medicine Jack Knife

  • Intermediate
  • Medicine Ball
  • Abdominals

Setup instructions

1) Lay on your back with the medicine ball in your hands - extend your arms behind you. Lift your legs up towards the ceiling so they're around a 45 degree angle.

Perform instructions

1) Curl up and lift yourself off the floor by tightening the core - aim to touch your toes.

2) Pause for a second at the top - your body should look like a 'V' at the endpoint. Now, gently lower yourself back to the floor.

3) Repeat.

Note: try keep your legs as straight as possible.

Health benefits

Muscular Endurance

Skills

Coordination · Balance

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