Mechanical methods are among the oldest and most important approaches used for induction of labour (4, 5). They are indicated for labour induction in prolonged pregnancies, diabetic and hypertensive disorders of pregnancy and premature rupture of membranes.
Shoulder Adductor Muscles? What are the muscles involved in shoulder elevation? The muscles involved in elevating the shoulder girdle (e.g. shrugging your shoulders) are the upper fibers of trapezius, levator scapulae, rhomboid major and rhomboid minor.
Shoulder Shrug Muscles. The shoulder shrug is a simple exercise to perform, and as the name suggests, it does work your shoulder muscles -- namely, the trapezius, or upper shoulder. Additionally, the shoulder shrug works muscles of your back -- the levator scapulae and erector spinae.