Which answer best describes the force frequency relationship...

Which answer best describes the force frequency relationship of muscle fibers a. Slow-twitch muscle fibers accrue relative amounts of force more slowly compared to fast-twitch muscle fibers b. Fast and slow muscle fibers accrue force at the same rate regardless of frequency c. Fast-twitch muscle fibers require higher frequency stimulation to accumulate force d. The reuptake of calcium in the sarcoplasmic reticulum has no relation to the force-frequency relationship. IS OPTION C CORRECT?

Transcript

00:01 Hello my dear friends, the concept given in the question is the action potential of motor nerves in muscles with response to the stimulation frequency.

00:34 Okay.

00:36 What is required for us is to find out the result depending upon the strength of the frequency applied.

00:54 Yes, let us get into the explanation with the supportive diagram.

01:02 So my dear friends, what is the stimulation frequency? now, the strength of the frequency, okay, depending upon any kind of activity in order to increase or decrease muscular activity.

01:23 Now, the muscular activity can be increased either by increasing the circulation of epinorphine or norphil, okay, neurotransmitters, or by increasing the strength of contraction frequency.

01:50 Okay? now, when the contraction frequency can also be called as stimulation frequency, increases, then we can see certain changes on the potentiality of muscular activity.

02:14 Now you should understand is if the strength of contraction increases, it is experienced by the muscle fiber and the motor nerves there.

02:28 Now, the activity of the motor nerves on experiencing that frequency depends on differential cases.

02:39 So, as you see it in the image here, if the frequency applied is low, then there is just a single twitch in the muscle or just a single twitch, you know, given by the motor nerves.

02:53 Twitch is nothing but is to contract.

02:58 Okay so there will be just a single twitch and then it gets back to its relaxation state because this twitch is not going to stand for a longer period because this tired the muscle fibers that is why as there is a low frequency experience there's just a single twitch and then it goes back to the relaxation stage okay so this is low here actually okay when the applied frequency is high, okay, then there can be many twitches, okay, many spasms or many twitches where on summation, the contraction will be high.

03:54 In the sense, the potentiality of contraction will be high.

03:58 If the frequency is very high, then each twitch produces a specific, you know, potentiality and that is termed as unfused tetanus...

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