The Jack Knife is one of the
Hardest Stomach Muscle Exercises

The Jack Knife Maneuver is one of the hardest stomach muscle exercises, and it is also one of the best stomach tightening exercises.

What makes the jack knife hard is that it requires above average strength and above average balance and coordination.

If you've mastered the easy stomach exercises and you're ready for a challenge, try the jack knife.

Jack Knife Stomach Exercise

Starting Position: Begin by lying on your back with your arms stretched over your head.

Form: Exhale and while keeping your knees and arms straight lift your body into a V position. Balance on your hips and hold at the top position for a brief second before returning to the starting position.

Personal Trainer Tips: If this exercise is too hard, begin by mastering V-ins on the floor. During V-ins your knees are bent and you can balance with your hands on the floor.

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There are so many different ways to exercise your stomach muscles. You can do stomach crunches on the floor or you can do stomach crunches on a ball. Visit the Picture Directory of Ab Exercises and Stomach Exercises to learn all the stomach exercises on this website.

Have fun with your workouts.
Yours in Health
Dr. Charles PT/PT

Return to the Directory of Abdominal Exercises from One of the Hardest Stomach Muscle Exercises

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