ACSM Certified Personal Trainer (CPT) — Question 19

What action is involved in the concentric phase of the biceps curl?

Answer options

• A. Flexion at the elbow.
• B. Extension at the elbow.
• C. Pronation of the forearm.
• D. Supination of the forearm.

Correct answer: A

Explanation

The correct answer is A, as the concentric phase of a biceps curl involves the contraction of the biceps muscle to flex the elbow. Options B, C, and D do not describe the primary action occurring during this phase; B refers to the opposite movement, while C and D pertain to rotations of the forearm rather than elbow flexion.