Legs · Bodyweight

Side Clamp

How to do the side clamp, the muscles it works, and the mistakes to avoid. Pulled straight from the Kovo app's exercise library.

Animated demonstration of the Side Clamp
Equipment
Bodyweight
Difficulty
Beginner
Logged as
Reps
Movement
Rotation
Mechanic
Isolation

How to do it

Lie on your side with your hips and knees bent about ninety degrees and your feet stacked together. Keeping your feet touching and your core braced, rotate your top knee up toward the ceiling like a clamshell opening, then lower it under control. Finish all reps, then switch sides.

  1. 1The side of your glute working to lift the knee
  2. 2Your feet staying glued together as the knee opens
  3. 3A steady, controlled lift with no torso movement

Common mistakes

  • Rolling your hips or torso backward to cheat the lift
  • Letting the bottom knee or feet drift apart
  • Rushing the reps instead of squeezing at the top

Muscles worked

The side clamp mainly works the glutes, with the external rotators assisting.

  • GlutesPrimary
  • External RotatorsSupport
  • Lower AbsMinor
  • ObliquesMinor
  • HamstringsMinor
  • Hip FlexorsMinor

Kovo programs the side clamp for you and tracks it every session.

We build your whole program, drop the right lifts into each workout, and adjust your weights as you get stronger. Free on iOS and Android.

More glutes exercises

See all glutes exercises →

Last reviewed June 2026.