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| Start Position | End Position |
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| Third Position | Muscle Groups |
| Primary Muscle Group | Secondary Muscle Group | Joint type |
| Core | Isolation | |
| Difficulty | Equipment Needed | |
| Intermediate High | (Ball) | |
Description
START POSITION: Place hands on floor and feet on exercise ball. Keep back neutral. MOVEMENT: Slowly draw knees in toward chest as far as possible allowing feet to roll on exercise ball. Hold and return to start position.
Video
http://www.youtube.com/embed/aVd-iK79j_I