90 DEGREE CRUNCHES • Russ Howe PTI

Exercise Demo: 90 Degree Crunches. 10 Second Demo Video. Exercise Instructions: To perform 90 Degree Crunches, follow these instructions.

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How to Do：90/90 CRUNCH

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How to Do：90/90 CRUNCH

VERTICAL LEG CRUNCHES • Russ Howe PTI

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How to Do：90/90 CRUNCH

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VERTICAL LEG CRUNCHES • Russ Howe PTI

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90 Degree Plate Press Crunch

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VERTICAL LEG CRUNCHES • Russ Howe PTI