Which of the following statements best describes the length-tension relationship of a muscle?
A) The total amount of tension a muscle can develop is related only to the muscle's active tension.
B) During active concentric contraction,maximal tension is developed in the muscle's midrange.
C) During active shortening,no tension is present after all cross-bridges have formed and the myofilaments are overlapping.
D) All of the above answers are correct.

Question

Quizplus · Accepted Answer

The length-tension relationship of a muscle refers to the relationship between the length of a muscle fiber and the amount of tension it can generate when contracting. Option A is incorrect because the total amount of tension a muscle can develop is related to both active and passive tension. Option C is incorrect because there is tension present during active shortening until all cross-bridges have disengaged. Option B is the best choice because during active concentric contraction, the maximal tension is developed in the midrange of the muscle's length, where there is optimal overlap between the actin and myosin filaments.

Which of the Following Statements Best Describes the Length-Tension Relationship