Which of the following factors is associated with muscular strength?

Muscular strength is significantly influenced by muscle size and the arrangement of muscle fascicles. Larger muscles typically produce more force because they contain more muscle fibers, which can generate greater tension during contraction. Additionally, the arrangement of fascicles plays a critical role in strength. Parallel fascicle arrangements allow for greater shortening of the muscle, while pennate arrangements, where fascicles are oriented at an angle to the tendon, can pack more muscle fibers into a smaller space, leading to enhanced force production despite a shorter range of motion.

In summary, the relationship between muscle size and fascicle arrangement directly correlates to the ability of a muscle to exert force, thus making this factor crucial in determining muscular strength.