Permission Joseph E. Muscolino. Manual Therapy for the Low Back and Pelvis - A Clinical Orthopedic Approach (2013).

Deep Pressure Massage to the Low Back – Positioning the Feet

Make sure that the feet are not too far apart. A wide stance may feel more stable but creates a static position that makes it difficult to transfer weight from one foot to the other. With a narrower stance, it is easier to shift the center of weight of the body from one foot to the other as a stroke is done.