Lifting a 25-lb barbell by flexing your forearm requires ________.
A) the biceps brachii to contract concentrically and the triceps brachii to contract eccentrically
B) eccentric contraction of both the biceps brachii and triceps brachii
C) the biceps brachii to contract eccentrically and the triceps brachii to contract concentrically
D) Isometric contraction of the biceps brachii and concentric contraction of the triceps brachii

Question

Quizplus · Accepted Answer

Lifting a weight by flexing the forearm involves the biceps brachii contracting concentrically (shortening during contraction to lift the weight) and the triceps brachii contracting eccentrically (lengthening under tension to control the movement), allowing for the controlled movement of the arm and weight.

Lifting a 25-Lb Barbell by Flexing Your Forearm Requires ________