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catalystathletics.com
Jack Knife Crunch Exercise Demo Video & Info
The jack knife crunch is a more demanding variation of the classic crunch, and an easier variation of the jack knife. Lie on your back and bend your knees slightly and lift your feet off the floor—the feet will stay off the floor throughout a set. Perform a crunch to curl the shoulders up and
Apr 15, 2020
Jackknife Exercise Benefits
🌟 Dive into the Core of Fitness with the Jackknife Exercise 🌟 Controlling your pelvis is crucial for a solid core and maintaining the right lumbar spine position. We're not just working out; we're training our bodies to master control and stability. 🧠 Start with wide fingers for shoulder support. 🖐 Lift your chest, draw your chin in, and aim for a neutral spine. 🌈 Exhale as you tuck in, inhale as you extend. 🌬 Great for anyone who works at a desk all day, and anyone looking to upgrade thei
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CHEK Institute
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10 Benefits Of Burpees For Building Muscle, Losing Fat, Cardio, And Efficiency | Lane Goodwin
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