Motor unit recruitment (stimulus intensity): As the stimulus voltage was increased in the experiment the active force continually increased until maximal voltage was reached. ![]() How were frequency-dependent wave summation and motor unit recruitment achieved in the experiment? Frequency-dependent wave summation: In the experiment as the stimulus frequency increased the muscle force generated with each successive stimulus was stronger up to a point where it could not produce any additional force regardless of stimulus frequency. Wave summation To achieve an active force of 5.2 g, did you have to increase the stimulus voltage above 8.5 volts? no How are frequency-dependent wave summation and motor unit recruitment similar? As either the frequency of the stimulation or the intensity of the stimulation increases the muscle force generated increases until a maximum point is reached. What are these results called? As the stimulus frequency increased the muscle force generated with each successive stimulus was stronger up to a point where it could not produce any additional force regardless of stimulus frequency. ![]() ![]() 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 relax between subsequent stimuli?
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