How to Do JACK KNIFE Situp Exercise
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This Fitness video teaches how to do the Jack Knife Situp exercise. It's a great at home exercise that requires no exercise equipment.
Will Safford is a certified Strength and Conditioning coach. He is Strongfirst certified and a brown belt in Brazilian Jiu Jitsu. He has been a strength and conditioning coach for nearly a decade. This is an excerpt from QUICK DUMBBELL WORKOUTS available from EffectiveStrengthAndConditioning.com.
Effective Conditioning is dedicated to one goal: bringing together the best fitness coaches and experts in the world for you to learn from. Brought to you by the same team behind the hugely successful BJJ Fanatics, Fanatic Wrestling and Judo Fanatics websites: We decided to bring to the health and fitness community our goal of sharing the knowledge of the best teachers in the world with as many people as possible.
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