The brachialis muscle is located on the front of the arm, just above the bend in your elbow. The biceps bracii muscle sits on top of the brachialis and both muscles work together to flex the forearm. The biceps bracii is the larger, and more visible, of the two muscles, however, the brachialis muscle is actually the stronger of the two, according to "The Trail Guide to the Body."
Step 1
Stand with your feet at hip width and your arms relaxed at your sides. Keep your shoulders in neutral position.
Step 2
Bend your right arm with your elbow at your side and your palm facing downward. Keeping your palm down makes the brachialis work alone, according to "The Principles of Anatomy and Physiology." If you turn your hand palm-up, the biceps muscle will assist.
Step 3
Make a fist with your right hand and rest your left hand on top of your fist. Press upward with your right fist as you press down with your left hand. You should feel a tightness in your upper arm, directly above your elbow.
References
- "Principles of Anatomy and Physiology"; Gerard Tortora and Bryan H. Derrickson; 2005
- "Trail Guide to the Body"; Andrew R. Biel; 1997
Member Comments