Jackknife Sit Up - How to Instructions, Proper Exercise Form and Tips | Hevy Exercise Library
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3.9K views · 3 comments | The prone jackknife is perfect for anyone having a hard time with the primal standard of squat ️ Watch as @balancedbody.ashley demonstrates One of the many things taught in IMS1 / Year 1 of the CHEK Academy  Enrollment for 2023 ends this week Want to learn more about the CHEK Academy Then Register for the Open House to get a sneak preview  Link in bio for more #jackknife #squat | CHEK Institute | Facebook
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