The amount of active tension (force) a muscle produces when contracting is greatest when the length of the muscle is:

Question

BlackTom AI · Accepted Answer

The question asks about the length of a muscle at which the amount of active tension produced during contraction is greatest.
Since the provided data shows only one listed answer, we will analyze that option and discuss general concepts related to the length–tension relationship.
Option: 'close to resting length (100%) or slightly stretched (110%)' This reflects the idea that the peak active tension occurs near the muscle’s resting length, where the overlap of actin and myosin filaments allows for the most cross-bridge formation. At 100% length, thin and thick filaments align to maximize cross-bridge cycling, yielding the highest active tension. A slight stretch to about 110% can maintain substantial actin–myosin overlap while not overly reducing cross-bridge opportunities, so some sources describe the region around resting length as still favorable, though performance typically declines if length increases too much.
Option critique: There are no other options provided to compare, so we cannot evaluate alternative length scenarios. In general, if the muscle is shorter than resting length, filament overlap becomes excessive and active tension decreases due to for example filament interference; if it is significantly longer than resting length, overlap diminishes and active tension drops sharply. The classic length–tension curve shows a peak near L0 (resting length) with declines on either side, and passive tension begins to contribute when stretched beyond optimal length.
In summary, the statement aligns with the common understanding that maximal active tension is achieved near resting length, potentially extending slightly beyond that range before major declines in cross-bridge formation occur. The absence of additional options prevents a fuller comparative analysis, but the principle described is consistent with the typical active force generation pattern in skeletal muscle.

2025FA-HES-207-001 B. ONQ#5

The amount of active tension (force) a muscle produces when contracting is greatest when the length of the muscle is:

View Explanation

Log in for full answers

Similar Questions

In regards to the relationship between resting muscle fiber length and the tension it can generate

In a consumer society, many adults channel creativity into buying things

Economic stress and unpredictable times have resulted in a booming industry for self-help products

People born without creativity never can develop it

A product has a selling price of $20, a contribution margin ratio of 40% and fixed cost of $120,000. To make a profit of $30,000. The number of units that must be sold is: Type the number without $ and a comma. Eg: 20000

Which of the following statement regarding cost is correct:

Under the assumptions used in cost-volume-profit analysis, as the activity increases:

The CVP and break-even analysis are supported by a range of important assumptions. Which of the following is not an assumption of the CVP:

More Practical Tools for Students Powered by AI Study Helper

Homework AI Solver

Stylized AI Paper Writer

Plagiarism Checker Assistant

Citation AI Academic Writing Tool

In-Class Translation Assistant

AI Note Generator

AI Quiz Answers

Past Exam Questions from University Test Bank

Smart Practice Assistant

Adaptive Practice

Making Your Study Simpler