If You Can Do This Many Sit-Ups After 55, Your Core Beats Most People Your Age

Find out how many sit-ups after 55 signal a strong, healthy core and use this 60-second test to track your strength over time.
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Forget sit-ups—a Pilates instructor says this move is more effective for your deep core

A lot of people avoid doing sit-ups because they don’t feel like they have enough core strength to do the move without putting strain on their neck and back. It’s true it’s not the easiest exercise to ...