Which muscle group is activated during the clam exercise, and what equipment is used?

The clam exercise primarily targets the gluteus medius and minimus, which are essential muscles for hip stability and abduction. During this exercise, the primary action involves the external rotation and abduction of the hip, which specifically engages these gluteal muscles.

Additionally, using the reformer with two springs can provide resistance that helps in building strength and control during the movement. The reformer allows for a range of motion and can be adjusted to accommodate different fitness levels by modifying spring tension.

Understanding the clam exercise's mechanics is crucial, as engaging the correct muscle group helps in developing better glute strength and contributes to overall leg and hip function, which is critical in Pilates practice and various physical activities.