CoreReps OnlyRated 6 out of 10

Jack-Knife on Ball

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Animated demonstration of the Jack-Knife on Ball

How to do the Jack-Knife on Ball

  1. 1Start in a push-up position with your shins on an exercise ball and your hands on the floor.
  2. 2Engage your core and pull your knees towards your chest, rolling the ball forward.
  3. 3Pause briefly, then extend your legs back to the starting position.

Muscle group

Core

Type

Reps Only

Equipment

Exercise Ball

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