Elbow

Function: The ELBOW is a simple yet sophisticated joint that is comprised of three bones: the humerus (the large bone of the upper arm) and the radius and the ulna (the two bones of the lower arm). When the biceps brachii, brachioradialis, and brachialis muscles contract, they promote flexion (bend) of the elbow whereas activation of the triceps and anconeus promote extension (straightening). These muscles help to reinforce stability and function of the elbow.


Triceps extension: With arms bent and holding weight behind head, straighten arms so that elbows extend and the hand/weight is drawn upward; slowly return to start position. Repeat 15 times.