Paperback book --- Sit-Ups Are Stupid And Crunches Are Crap!
This book by Dr. Todd Sinett offers a new approach to abdominal exercises, focusing on core balance to improve flexibility, breathing, and digestion while avoiding traditional sit-ups and crunches.
- The description claims that traditional sit-ups and crunches should be avoided.
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- Default Title — 17.95 USD — In stock
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