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What is muscle force and its vector representation?
Muscle force is the force produced by the contraction of a muscle. Force vectors, torque vectors, and difference vectors can all be used to help describe this force.
What muscle fiber produces the greatest contractile force?
Leg.
What is the term for the rapid rise and fall in force produced by a muscle fiber after a single action potential?
A twitch is the rapid rise and fall in force produced by a muscle fiber after a single action potential.
What happens to muscle force production when the muscle is too short?
Force produced is reduced, when the muscle is over-stretched or under-stretched it is weaker. Most muscles will produce max force at roughly 90 degrees.
What is the force frequency relationship and how does it impact the behavior of a system?
The force-frequency relationship refers to how the force produced by a muscle or system changes with the frequency of stimulation. In general, as the frequency of stimulation increases, the force produced by the muscle also increases. This relationship impacts the behavior of the system by influencing its ability to generate force and perform tasks efficiently at different frequencies of stimulation.
Varying the stimulus strength affect the twitch force?
Yes, varying the stimulus strength can affect the twitch force produced by a muscle. Increasing the stimulus strength can lead to a stronger muscle contraction by recruiting more muscle fibers to generate force. Conversely, decreasing the stimulus strength may result in a weaker twitch force as fewer muscle fibers are activated.
What is an acceleromyograph?
An acceleromyograph is a piezoelectric myograph, used to measure the force produced by a muscle after it has undergone nerve stimulation.
What is the greatest amount of force a muscle group can exert in a single effort?
muscular strength
What defines the capacity to do work?
force
Why does muscle contraction force fluctuate?
Muscle contraction force fluctuates due to several factors, including the frequency of nerve impulses, the number of muscle fibers recruited, and the muscle's length-tension relationship. Variations in the rate of stimulation can lead to different levels of force generation, as more frequent impulses can cause summation and tetanus. Additionally, the optimal overlap of actin and myosin filaments at varying muscle lengths affects the force produced. Other factors, such as fatigue and energy availability, also influence the overall strength and endurance of muscle contractions.
When a muscle contracts, it pulls with what force?
When a muscle contracts, it pulls with a force generated by the muscle fibers contracting and shortening.
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