Increasing the stimulus frequency would result in fused or unfused tetanus compared to a single muscle twitch (Option C).
A single muscle twitch can be defined as the contraction of the muscle in particular environmental conditions, which is well known to show variation in muscle tension.
A single muscle twitch is also known to have three well marked phases which include the latent period in which the muscle maintains normal steady conditions, the contraction state phase in which it shortness to produce a particular movement of the tissue and finally the relaxation stage period in which the muscle adopts tis normal length.
Therefore, with this data, we can see that a single muscle twitch is a muscle contraction period that includes different phases such as the relaxation stage phase where the muscle adopts its length and the contraction stage where it contracts.
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