About this exercise
A seated bodyweight core exercise where both legs trace a large circular path while the torso remains slightly reclined, challenging the abs, hip flexors, and obliques through the rotational arc of motion.
Seated Circle Leg Crunch
Step by step instructions, muscle activation and variants for the Seated Circle Leg Crunch.
MediumAbsGlutes
How to Perform
- Sit on the floor with knees slightly bent and lean back at a 45° angle, bracing your core
- Extend your legs in front of you and lift them off the floor
- Move both legs together in a slow, controlled circle — sweeping out to one side, down, across, and back up
- Keep your lower back neutral and your abs engaged throughout the circular motion
- Complete the target number of circles in one direction, then reverse and repeat in the other direction
- Avoid letting your heels touch the floor between reps
Muscle Activation
Primary
AbsGlutesCoreObliquesInner thighs
Secondary
QuadricepsOuter thighs
About the Seated Circle Leg Crunch
The Seated Circle Leg Crunch is a foundational movement that builds strength and muscle through controlled, progressive overload. Train it 1 to 2 times per week with 3 to 5 working sets per session, gradually adding weight or reps as form holds up.
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