Manual muscle testing infraspinatus tendon

• Palpate at the tendon or muscle belly. • Apply resistance at the end of the range if the muscle is strong enough (Break Test). Manual Muscle Testing Mikhled Maayah PhD, PT Jordan university of science and technology JUST Muscles contribute to Shoulder External Rotation Infraspinatus • Origin: • Posteriorly on upper & middle Manual Muscle Testing was developed for the first time in the world during the 1860-1880 century by Swedish physiotherapists from the Royal Central Institute of Gymnastics Infraspinatus M. Infraspinatus Infraspinatus Ischiococcygeus abductor M. ischiococcygeus---Ischiococcygeus extensor M. ischiococcygeus---L Manual Muscle Testing. Biceps Brachii. Action: Hook seated with arm at side and forearm supinated, flex elbow. Stabilize over anterosuperior aspect of ipsilateral humerus. Apply resistance just proximal to wrist in direction of elbow extension. Gravity Eliminated: Sitting with arm supported on table with a towel between table and arm, shoulder 1 - muscle belly become prominent, no visible joint movement. Common Substitutions. > Hip-hiking. > Ext rotation and flexion (sartorius) or opposite, TFL. > While testing 3-5, makes sure that the body is leaned forward, and the testing leg is in line with the body, and even slightly behind to avoid subs. Hip Adduction.