Clamshells: Muscles Worked & Technique

Clamshells exercise technique

Muscles Worked in Clamshells

Primary muscles worked:

Secondary muscles worked:

How to Do Clamshells

  • Lie on your side, with your legs bent at about a 90 degree angle.
  • Tuck your pelvis in to properly activate your glutes.
  • Lightly brace your core, and lift the upper leg by using your glutes. Lift as high as you can while maintaining contact with the glute muscles.
  • Lower the leg in a slow and controlled motion, and repeat for reps.


Clamshells are commonly used to activate the abductors. They can be made more challenging by putting a band over your knees. Focus on contact with the glutes through the entire movement!

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Text and graphics from the StrengthLog app.