Step by step instructions, muscle activation and variants for the Clamshell.
The Hip Clam Shell is a bodyweight isolation exercise performed on the side, targeting the glute medius and outer thigh by rotating the top knee open like a clamshell. It is widely used for hip activation, glute rehabilitation, and correcting knee-valgus patterns.
Common mistakes content is coming soon.
The Clamshell 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.