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Why are isotonic and isometric contractions two experimental ways that the mode of stimulation can affect the muscle force?
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How did the frequency of stimulation affect the amount of force generated by the isolated skeletal muscle when the frequency of stimulation was increased such that the muscle twitches did not fully re?
Decreased force production
How does the frequency of stimulation affect the amount of force generated by the muscle?
Increasing the stimulus to an isolated muscle increases the strength of a contraction. A muscle begins to contract when the stimulus is given; however, if the muscle does not finish contracting before the next stimulus hits, then the force of the contraction will increase to finish the contraction. This is known as wave summation.
Why does the force of a muscle decrease over time during uninterrupted stimulation?
The muscle is said to undergo Fatigue.
What does recruitment and frequency of stimulation affect?
Recruitment affects the number of motor units activated in a muscle, while frequency of stimulation affects the force generated by those motor units. Increasing recruitment leads to more muscle fibers being recruited, increasing force production, while increasing frequency of stimulation produces stronger muscle contractions by increasing the rate at which motor units are activated.
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.
What happens to the amount of total force the muscle generates during the stimulated twitch?
The total force that a muscle generates during a stimulated twitch depends on the frequency and intensity of the stimulation. In general, as the stimulation frequency increases, the force generated by the muscle also increases up to a point, where it reaches a plateau known as tetanus. After this point, increasing the stimulation frequency further does not significantly increase the force output.
What factors affect muscle contraction?
the degree of muscle stretch is affect the strength or force of skeletal muscle contraction
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.
Name four factors that influence contractile force and two that influence velocity and duration of contraction?
The four factors that influence contractile force are the number of muscle fibers stimulated, the relative size of the fibers, the frequency of stimulation and the degree of muscle stretch. Factors that influence the velocity and duration of contraction are the muscle fiber type, load and recruitment.
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.
When was Experimental Mechanized Force created?
Experimental Mechanized Force was created in 1927.
