Sit-up: muscles worked and form

Log it in Platesmith. The app shows last time's numbers on every set of Sit-up, times your rest and tells you when to add weight. Free, with no ads.

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Muscles worked

Main	Rectus abdominis, Hip flexors
Also	Obliques

Setup

Full sit-ups bring the hip flexors in by design; if the lower back complains, crunches cover the abs.

How to do it well

Curl up one vertebra at a time
Touch the knees tall, not hunched
Roll back down under control

Common mistakes

Yanking the head forward
Anchored feet doing all the work

Free programs with Sit-up

Fitness Test Prep (3 day)

Similar exercises

Hanging Knee Raise
Lying Leg Raise
Bicycle Crunch
Bird Dog
Crab Walk
Crunch

General guidance, not medical advice. Start lighter than you think, and check with a doctor first if you have a health condition or injury.