Which of the following positions of the elbow would allow the biceps brachii to produce its greatest force?

Question

Quizplus · Accepted Answer

The biceps brachii can produce its greatest force when the elbow is flexed between 90° and 100°. At this angle, the biceps has the optimal length-tension relationship and can generate the greatest mechanical advantage for elbow flexion. At full joint end-range extension (A), the biceps is in a shortened position and cannot produce as much force. Between 0° and 60° of flexion (B), the biceps has a good length-tension relationship, but not the optimal one. At full joint end-range flexion (C), the biceps is in a lengthened position and cannot produce as much force.

Which of the Following Positions of the Elbow Would Allow