Clamshell

Lying on the side with the knees bent and the feet together, open the top knee without rolling the pelvis back.

Clamshell, illustrated

How to do it

Setup

Lying on one side, knees bent, feet together, head rested.

Steps

  1. Open the top knee like a shell, feet staying together.
  2. Pause at the top without the pelvis rolling back.
  3. Close with control; finish the side, switch.

Common mistakes

Pelvis rolling backward to fake height: the hip stays stacked; small honest range. Feet separating: glued. Racing: slow opens, slower closes.

Breathing

Exhale opening, inhale closing.