Ask the trainer: I've noticed fitness instructors don't teach sit-ups much anymore. Are they bad for you? - CampusWell

Sit-ups aren't as common in workouts as they used to be. Does this mean sit-ups are bad for you? Here's what our trainer thinks.

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Why You Can Stop Doing Sit-Ups - WSJ

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STOP doing SIT UPS!

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Joint paddle reality sit ups good or bad Frightening close bark

Why You Can Stop Doing Sit-Ups - WSJ