Develop active hip internal rotation strength in a supine sleeper position — a clean, grounded drill that achieves hip IR by dipping the knee inward toward the floor and then demands the internal rotators generate real force by lifting the leg straight up without losing that rotation, all while keeping both sit bones anchored to the ground.

Lying on your back, the working leg is bent and the knee is dipped inward toward the floor, driving the hip into internal rotation. Both sit bones must remain in contact with the floor throughout — any lifting or rotation of the pelvis signals that the IR range being attempted exceeds what is genuinely available at the hip. Find the depth of IR that keeps both sit bones grounded and honest, even if that range feels small. From this position of controlled, pelvic-neutral IR, the task is to lift the knee and leg straight up off the floor — maintaining the internal rotation throughout the lift — without allowing the hip to rotate back out as the leg rises.

The sleeper position creates a direct, unloaded environment for hip IR training — the body is fully supported, the pelvis is clearly anchored by the floor, and any compensation is immediately visible. Dipping the knee inward to achieve IR rather than using a stick or hand means the hip must actively participate in finding the range, not just be pushed there passively. The lift-off demand then requires the internal rotators to transition from a position-holding role into a force-producing role — contracting to sustain the IR while the hip flexors bring the leg upward. The two-sit-bones rule is the non-negotiable cue throughout — it keeps the pelvis honest and ensures the range is coming from the hip joint itself.

Expect a deep, concentrated effort through the back and inner hip of the working leg as the knee dips inward and the leg lifts. The range of IR may feel limited and the lift may be small — both are completely normal and correct. What matters is that both sit bones stay grounded, the rotation is maintained during the lift, and no momentum or pelvic rocking is used to assist the movement. Over time, this drill builds the active hip IR strength needed for better squatting mechanics, smoother running gait, rotational sport performance, and long-term hip health.