What Is a Factor That Affects the Velocity and Duration of Muscle Contractin?

Answer

A factor that affects the velocity and duration of a muscle contraction is the amount of muscle fibers that are being stimulated at any given point in time. The more fibers that are stimulated the faster the contraction.
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load on the fiber.
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It is A)number of muscle fibers stimulated. When many muscle fibers are moving, it is much easier, thus faster. to contract. All the other choices do not matter, since they reflect
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http://www.cerritos.edu/charbut/AP201/20…. This answers your question very well.
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load placed on the muscle.
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