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Table 5 Impact of contraction level on MUP amplitude in a new sample of healthy subjects.

From: Assessing motor deficits in compressive neuropathy using quantitative electromyography

Target Contraction level (%MVC) Actual Contraction Level (%MVC) Intensity (PPS) MUP peak to peak amplitude (uV) MUP duration (ms)
10-15% 12.5 (12.5-14.6) 68 (40-95) 363.6 (232.5-466.3) 6.52 (5.33-8.12)
40 42 (38.9-44.7) 82 (73-137) 474.3 (277.4-522.8) 6.30 (5.24-8.19)
  1. Values presented are medians and ranges. The differences in MUP amplitude between the two contraction levels were not statistically significant (F-2.45, p = 0.156). * MVC denotes maximal voluntary contraction, PPS denotes pulses per second.