ABROFIT
AI FITNESS OS

Sit-Up

Core · core · intermediate

Sit-Up — start positionStart
Sit-Up — end positionFinish

How to do it

Lie on your back with knees bent and feet anchored or flat, cross the arms over the chest, and curl up one vertebra at a time until the chest is near the thighs, then reverse the same way.

Muscles worked

Primary: core · Also works: hip_flexors

Equipment

No equipment

Common mistakes

  • Throwing the arms forward and snapping up with momentum instead of rolling up segment by segment
  • Anchoring the feet and pulling yourself up with the hip flexors, which loads the lower back
  • Slamming back down and bouncing off the floor into the next rep

Variations

  • Butterfly sit-up with the soles of the feet together
  • Decline bench sit-up for more range
  • Weighted sit-up holding a plate on the chest

Can't do this one? Swap it for

Take care: ABROFIT automatically removes this movement for anyone who has flagged a lower back or neck or hip problem. If that's you, use one of the swaps above and speak to a physio before loading it.

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