Clamshells

Strengthen Your Hips & Stabilize Your Glutes with Clamshells

If you have ever felt a dull ache in your lower back after a walk or noticed your hips feeling tight and unstable during daily movement, the clamshell exercise is one of the most effective, low-impact ways to wake up your gluteus medius. In midlife, keeping your hip stabilizers strong is essential for protecting your lower back, improving balance, and supporting overall pelvic alignment.

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Major Muscles Worked

  • Hips (Hip Abductors & Rotators)
  • Glutes (Specifically the Gluteus Medius & Gluteus Minimus)

Step-by-Step Exercise Setup

  1. Place a looped resistance band around your legs, positioned just above your knees.
  2. Sit on an exercise mat with your knees bent, feet flat on the floor touching each other, and support your upper body with your hands placed comfortably behind you.

How to Perform the Movement

  1. Keeping your hands, glutes, and the edges of your feet anchored to the floor, engage your glutes and open your knees away from the midline of your body against the band's resistance.
  2. Keep your ankles straight and move outward only as far as your natural range of motion allows (the range will depend on your hip flexibility and band tension).
  3. Slowly and with control, return your knees to the starting position.

Key Form Cues & Tips

  • Quality over range: This is a subtle, controlled movement. Do not force your knees wider if your feet roll or your pelvis rocks.
  • Control the return: Do not let the band snap your knees back together; resist the band on the way down to get the full muscle benefit.

Other Variations of the Clamshell

  • Side-Lying Clamshells with a Band: Lie on your side with hips stacked at a 45-degree angle and knees bent at 90 degrees; rotate the top knee upward while keeping feet glued together.
  • Side Plank Clamshells: Elevate onto your bottom elbow and knee in a modified side plank while opening the top knee to challenge both hip stability and core strength simultaneously.