Clam Shell
Primary
Rehabilitation
Secondary
Gluteus Medius, Hip Abductors
Equipment
Bodyweight
Difficulty
Beginner
Type
Rotation
NASM-CPT, CSCS certified trainers. Every guide is built from peer-reviewed research and real coaching experience.
For training your rehabilitation, the Clam Shell is a solid beginner-level rotational movement in the rehabilitation category. Use for hip stability and glute activation.
Everything You Need to Know About the Clam Shell
The Clam Shell is a good for beginners exercise that targets your Gluteus medius. It's a popular choice for building strength and muscle in these areas. When should you use it? Use for hip stability and glute activation. This timing makes the most of your workout and helps you get better results. Who is this for? All levels, especially runners and those with knee issues. Whether you're just starting out or working toward a specific goal, this exercise fits into your routine.
Muscles worked: Clam Shell
Primary
Secondary
Stabilizers
Clam Shell form guide
- 1
Lie on side with knees bent at 45 degrees.
- 2
Keep feet together and hips stacked.
- 3
Lift top knee while keeping feet together.
- 4
Rotate from hip, not spine.
- 5
Lower knee back down with control.
- 6
Complete reps then switch sides.
What are the best tips for the Clam Shell?
Targets gluteus medius for hip stability.
Keep hips stacked and dont roll back.
Can add band for resistance.
What are common Clam Shell mistakes to avoid?
Rolling hips back for optimal results.
A compromised back position during the Clam Shell puts your spine under unnecessary shear force. Brace your core and maintain a neutral spine throughout the movement.
Moving from spine instead of hip.
Losing hip position during the Clam Shell shifts the loading pattern away from your Gluteus medius and can compress your lower back. Stay planted and let your Gluteus medius do the work.
Going too fast which reduces muscle tension and control.
Rushing through the Clam Shell reduces the time your Gluteus medius spends under tension — which is one of the main drivers of growth. Aim for a controlled 2-second lowering phase on every rep.
Is the Clam Shell right for you?
All levels, especially runners and those with knee issues.
How to Program the Clam Shell
Lower reps with heavier weight builds raw strength. Your muscles and nervous system adapt to handle more load over time. This range is best for strength-focused goals.
This rep range keeps your muscles under tension long enough to trigger growth. Most people see the best muscle-building results in this zone. It balances strength and muscle size.
Higher reps with lighter weight builds muscular endurance and improves conditioning. This range is good for joint health and building work capacity.
General guideline: 3 sets of 15-20 each side. Rest 30 seconds.
What are good alternatives to the Clam Shell?
Other Variations
- Banded Clam Shell
- Elevated Clam Shell
- Clam Shell with Lift
This Exercise Is in Your Plan
MySetPlan picks the right exercises for your goals — like the Clam Shell — and builds them into a monthly program. Every set, every rep, planned out.
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Safety Notes
- Keep hips stacked.
- Move from hip joint.