Hip Clam Shell
Hip Clam Shell Exercise Description
The Hip Clam Shell is a side-lying bodyweight exercise that trains hip abduction and external rotation while the trunk stays stable. It primarily targets the gluteus medius and other lateral hip external rotators that help control pelvic position during walking, running, and single‑leg stance. The movement is small and precise: you “open” the top knee without letting the pelvis roll or the low back twist. Keeping the feet together and the hips stacked minimizes compensations and directs the work to the lateral hip. Use a comfortable range of motion and prioritize smooth control to maintain neutral spine, steady pelvis, and consistent breathing throughout.
- Muscle Groups: Glutes, Hips
- Target Muscles: Gluteus Medius
- Assisting Muscles: Gemellus Inferior, Gemellus Superior, Gluteus Maximus, Obturator Internus, Piriformis, Quadratus Femoris
- Stabilizing Muscles: External Obliques, Internal Obliques, Multifidus, Quadratus Lumborum, Transversus Abdominis
- Body Area: Lower Body
- Body Parts: Hips, Legs, Upper Legs
- Body Surface: Side
- Body Symmetry: Unilateral
- Equipment: Bodyweight
- Exercise Patterns: Other
- Exercise Type: Strength
- Functional Grouping: Hip Abductors, Hip Extensors
- Joint Involvement: Single-joint
- Muscle Location: Upper Glutes
- Movement Direction: Rotational
- Muscle Position: Lateral
- Gender: Male
How To Do The Hip Clam Shell Exercise
‘- Lie on your side with head supported; stack shoulders and hips in a straight line.
– Bend knees and hips so heels align with your buttocks; keep feet together.
– Find neutral spine; lightly brace your abdominal wall.
– Set pelvis: stack it directly over the bottom hip without rolling backward or forward.
– Keep the bottom waist long (avoid side-bending into the floor).
– Exhale and open the top knee like a “clamshell,” moving only from the hip.
– Stop as soon as the pelvis wants to roll or the feet separate.
– Hold the top position briefly with hips stacked and core gently braced.
– Inhale and lower the knee with control, maintaining heel contact the entire time.
– Keep the top hip from hiking; imagine your pelvis is fixed between two panes of glass.
– Relax neck and shoulders; let the glutes do the work, not the low back.
– Switch sides, setting your alignment before starting the movement.
Hip Clam Shell Tips
‘- Stack your shoulders and hips in a straight line with your head supported before you start.
– Bend your knees and hips so your heels line up with your buttocks and keep your feet together.
– Find a neutral spine and lightly brace your abdominal wall before moving.
– Stack your pelvis directly over the bottom hip and avoid rolling backward or forward.
– Keep the bottom waist long and avoid side-bending into the floor.
– Exhale as you open the top knee like a clamshell, moving only from the hip.
– Stop opening the knee as soon as the pelvis wants to roll or the feet start to separate.
– Briefly hold the top position with the hips stacked and core gently braced.
– Inhale and lower the knee with control, maintaining heel contact the entire time.
– Relax your neck and shoulders so the glutes do the work instead of the low back.
Hip Clam Shell Beginner Introduction
The Hip Clam Shell is a side-lying bodyweight movement centered on controlled hip rotation and lifting the top leg while the rest of the body stays steady. It places emphasis on the outer hip and glutes, especially the muscles that guide the leg out to the side and rotate it outward. These same muscles play a key role in supporting the pelvis during walking, running, and standing on one leg, so this exercise often appears in programs aimed at improving hip stability and balance.
The action is intentionally subtle and measured, with attention on moving from the hip joint rather than the lower back. The legs are bent, the feet remain in contact, and the upper knee travels upward only as far as the pelvis can remain quiet and the spine can stay relaxed and natural. Gentle engagement through the midsection and calm, even breathing help the trunk remain calm while the hip works, creating a clear sense of where the effort should be felt around the side of the hips and glutes.