In our July/August issue, Dr. Jeffry S. Life shared his abdominal crunch exercise from his newest book, Mastering the Life Plan: The Essential Steps to Achieving Great Health and a Leaner, Stronger, and Sexier Body
In this video, instructor Molly Tittle from Invoke Studio in Indianapolis, Indiana, shows how to perform the exercise with a resistance band and a chair, and how to tell if you’re doing it wrong.
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