Incline Sit-up + Rotation
The incline sit-up with rotation is a rotational core exercise combining an incline sit-up with an alternating torso twist at the peak. The rotation increases the oblique engagement alongside the primary rectus abdominis work from the incline sit-up.
How to do it
- Lie on an incline bench with your head at the lower end and your feet secured.
- Place your hands behind your head.
- Curl your torso up and rotate to one side at the top of the movement.
- Lower back to the starting position and repeat with a rotation to the other side.
- Continue alternating rotations for the desired number of repetitions.
Form cues
- Secure your feet firmly before beginning.
- Engage your abs as you lift your torso.
- Rotate your shoulders toward the opposite hip at the top.
- Lower down with control without collapsing.
Breathing: Exhale as you curl up and twist toward the top, and inhale as you lower yourself back down.
Common mistakes
- Pulling on your neck with your hands instead of using your core, which can cause neck strain.
- Rushing through the movement using momentum, which reduces muscle engagement.
- Forgetting to breathe during the twist, which makes the core contraction less effective.
Muscles worked
Primary: abs. Secondary: obliques, hip flexors.
Suggested sets & reps
Get fitter
3 sets x 10-12 reps, rest 60 s
Lose weight
3 sets x 12-15 reps, rest 45 s
Build muscle
3 sets x 8-12 reps, rest 60 s
Easier, harder & alternatives
Make it harder
Take care if…
- If you have lower back or neck discomfort, ease off or choose a gentler floor variation.
General educational guidance, not medical advice. Stop on sharp pain and check with a qualified professional if unsure.
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Start free →Frequently asked questions
Where should I feel this exercise?
You should feel your abdominal muscles working throughout the lift and a strong contraction in your obliques as you twist at the top.
What if my lower back hurts?
If you feel discomfort in your lower back, stop immediately and try a gentler movement like a standard crunch or a flat floor twist.
How often can I do incline sit-up with rotation?
2 to 3 times per week is plenty for recovery, allowing your core muscles time to rest and adapt.