Pronation

Electrode Placement
Application Instruction by Dr. Lucinda Baker

Electrode placement for forearm pronation. The medial condyle is marked with an X. The negative electrode is placed between the midline and the medial condyle, very proximally on the forearm. The positive electrode is placed over on the radial border.

Related Electrode Placements

Pronation

Video Instruction
Audio Transcript:

Electrode placement for forearm pronation. The medial condyle is marked with an X. The negative electrode is placed between the midline and the medial condyle, very proximally on the forearm. The positive electrode is placed over on the radial border.

The stimulated contraction consists of pronation along with wrist flexion. The pronated contraction would be graded three minus out of five.

Pronation

Muscle Anatomy

Muscles involved in pronation:

Pronator Teres
Origin: medial supracondylar ridge of humerus (common flexor tendon), coronoid process of ulna
Insertion: Middle of the lateral surface of the body of the radius
Other actions: elbow flexion

Pronation

Nerve Anatomy

Nerves involved in pronation

Pronator Teres
Nerve innervation: Median nerve
Nerve root: C5-T1

Pronator Quadratus
Nerve innervation: median nerve (anterior interosseous nerve)
Nerve root: C5-T1

Brachioradialis
Nerve innervation: Radial nerve
Nerve root: C5, C6