The trapezius is a large muscle that extends from the base of the skull, down to the T12 vertebra, and out to the scapula and clavicle. This muscle plays a crucial role in performance and injury prevention for rock climbers. Its function is to stabilize the scapula during shoulder movements such as the pull up,...
During arm movements, a relative ratio of degree measurements occurs between the ball and socket of the shoulder and the shoulder blade on the rib cage. This ratio or rhythm is thought to preserve spacing in the shoulder joint and optimize the length tension relationship in the surrounding muscles. Abnormal rhythms have been associated with...