
Side Lying Clam
- Músculo objetivo
- Gluteus Medius
- Músculos sinergistas
- Tensor Fasciae Latae
- Equipamiento
- Body weight
- Parte del cuerpo
- Hips
- Tipo
- Strength
The Side Lying Clam is a bodyweight hip strength exercise that targets the gluteus medius with assistance from the tensor fasciae latae. Lying on your side with knees bent, you rotate the top knee upward to mimic a clamshell opening. It is especially effective for building hip stability and correcting glute weakness.
Cómo hacer el Side Lying Clam
- 1Lie on your side on a mat with your hips stacked and your knees bent to approximately 45 degrees.
- 2Rest your head on your lower arm or a pillow, and place your top hand on the floor in front of your chest for balance.
- 3Keep your feet together throughout the movement.
- 4Brace your core and ensure your hips remain stacked — do not let your pelvis roll backward.
- 5Inhale to prepare, then exhale as you rotate your top knee upward toward the ceiling as far as you can without shifting your hips.
- 6Pause briefly at the top of the movement and squeeze the gluteus medius.
- 7Slowly lower your knee back to the starting position under control.
- 8Complete all reps on one side, then switch to repeat on the other side.
Consejos de técnica
- Imagine your hips are sandwiched between two panes of glass — keep them perfectly stacked and avoid any rocking.
- Lead the movement from your hip, not your foot. The feet stay together while the knee drives upward.
- Control the descent — a slow, resisted return engages the gluteus medius more than letting the knee drop.
- Place a light resistance band just above your knees to increase the challenge once the bodyweight version feels easy.
- Focus on rotating at the hip joint rather than hiking the pelvis to gain extra range of motion.
Errores comunes
- Rolling the pelvis backward: Letting the hips rotate to gain more knee height reduces gluteus medius activation and shifts stress to the lower back.
- Using too much range of motion: Forcing the knee higher than hip rotation allows recruits compensatory muscles and takes tension off the target muscle.
- Lifting the top foot off the bottom foot: Separating the feet turns the movement into a different pattern and reduces isolation of the gluteus medius.
- Rushing the repetitions: Moving too quickly relies on momentum rather than muscular control, diminishing the training effect.
- Allowing the waist to sag into the floor: A collapsed core destabilizes the pelvis and reduces the effectiveness of the exercise.
Preguntas frecuentes
What muscles does the Side Lying Clam work?
The Side Lying Clam primarily targets the gluteus medius, with the tensor fasciae latae acting as a synergist. These muscles work together to externally rotate and abduct the hip during the movement.
How many reps should I do for the Side Lying Clam?
For strength and stability, aim for 2–4 sets of 12–20 reps per side. Because the gluteus medius responds well to higher rep ranges, keeping rest periods short and focusing on the mind-muscle connection yields the best results.
Can I make the Side Lying Clam harder?
Yes. Loop a mini resistance band just above your knees to add external load while keeping the movement bodyweight-based. You can also slow the tempo or pause for 2–3 seconds at the top of each rep to increase time under tension.
Is the Side Lying Clam good for knee pain?
The Side Lying Clam is commonly used in rehabilitation because strengthening the gluteus medius helps stabilize the hip and reduce valgus stress on the knee. However, consult a physiotherapist before using it as part of a knee-pain management program.
What is the difference between the Side Lying Clam and the Hip Abduction exercise?
Both movements target the gluteus medius, but the Side Lying Clam uses external hip rotation with the knees bent, while hip abduction lifts the entire leg upward with the knee extended. The Clam is generally more accessible for beginners and is widely used in warm-up and rehab protocols.







