The biceps brachii, a prominent muscle in the upper arm, consists of two heads, creating a distinctive bulge. It is a key player in forearm movements.

Origin:
The long head originates from the supraglenoid tubercle of the scapula, while the short head arises from the coracoid process of the scapula. Both heads unite to form the muscle belly.

Insertion:
The biceps brachii inserts via the common tendon into the radial tuberosity, allowing it to exert its force on the radius.

Function:
The primary function of the biceps brachii is flexion at the elbow joint, bringing the forearm toward the upper arm. Additionally, it plays a role in supination, rotating the forearm to a palm-up position. As a powerful flexor, it is actively involved in various daily activities, from lifting objects to executing controlled movements.

The biceps brachii is most active during elbow flexion and forearm supination. Exercises that emphasize controlled curling motions and proper arm positioning are most effective for targeting this muscle.

Primary Isolation Exercises
Barbell Bicep Curl
Incline Dumbbell Bicep Curl

Supporting Movements
Chin-Up

How to Emphasize the Biceps Brachii
Focus on controlled elbow flexion during each repetition
Keep the upper arms stationary to isolate the biceps
Avoid swinging or using momentum
Control both the lifting and lowering phases

Explore Exercise Technique and Execution
Each exercise listed above includes a full breakdown of proper form, muscle involvement, biomechanics, and safety considerations. Select an exercise to learn how to train the biceps brachii effectively.