Final answer:
The Superficial Front Line maintains posture and aids in lifting, the Lateral Sling stabilizes the pelvis and lower extremities during movement, and the Spiral Line supports rotational forces and integrates limb movement with the central body.
Step-by-step explanation:
The Superficial Front Line (SFL) is one of the myofascial lines described by Thomas Myers. The SFL runs along the entire anterior length of the body from the top of the feet to the side of the skull, and its function is to maintain posture, provide stability in the legs, and allow for lifting actions.
The Lateral Sling is a combination of muscles and fascia that work together to stabilize the pelvis and lower extremities during gait. It consists mainly of the gluteus medius, gluteus minimus, tensor fascia latae, and the contralateral adductors. The primary function of the lateral sling is to maintain balance and facilitate efficient energy transfer while walking or running.
The Spiral Line (SL) wraps around the body in a helical pattern, connecting the foot, leg, torso, and head. This myofascial line integrates the stability and movement of the limbs with the central part of the body and supports rotational forces during movement.