The classic sit-up is a workout staple. Whether you've become all too familiar with the movement in your weekend HIIT class or eked out those last few reps while following a home workout video, you've ...
Everyday Health on MSN
Why Do My Stomach Muscles Protrude When Doing Sit-Ups?
A stomach bulge during sit-ups may mean diastasis recti or a hernia. Both conditions are treatable, often with exercise or medical intervention.
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