KINE2850 elbow and forearm

what muscles are contracting concentrically or eccentrically in a push up?

concentrically: elbow felxors eccentrically: elbow extenders

what motions occur at the humeroulnar joint? which plane of motion do these motions occur?

elbow flexion and extension sagittal

triceps brachii (elbow extender)

extension of eblow (strongest of the two) posterior side of the arm

anconeus (elbow extender)

extension of the elbow*(supplementary extender)*

brachialis (elbow flexor)

flexes the elbow regardless of forearm position located on the anterior side of the arm

brachioradialis (elbow flexor)

flexion of elbow. is most effective in a neutral position anterior side of the arm

pronation and supination

occur in the forearm and it is the radius rotating over the ulna

what are the two forearm muscles that pronate the forearm?

pronator teres & pronator quadratus

at which joint does pronation and supination occur in the forearm? what plane of motion do these motions occur?

radioulnar transverse

biceps brachii (elbow flexor)

supinates the arm, strongest in the supinated position anterior side of the arm

what muscles supinates the forearm?

supinator muscle