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Table 2 Torque levels and stimulation intensity during fatigue testing

From: Standardizing fatigue-resistance testing during electrical stimulation of paralysed human quadriceps muscles, a practical approach

Electrode Configuration CONV1 POS2 POS3 POS4 CONV2
Normalized Initial peak Torque % of MEC 41.6 ± 2.7 39.1 ± 4.7 36.7 ± 2.9 39.4 ± 1.5 39.1 ± 2.7
Intensity at 40% MEC mA 70.3 ± 10.1 59.7* ± 3.3 50.2* ± 4.0 53.2* ± 5.3 66.8 ± 5.4
  1. For the fatigue testing the stimulation amplitude was set to elicit contractions with a peak torque of 40% MEC. The table shows the normalized initial peak torque (average of the first 10 contractions) along with its corresponding stimulation amplitude. Data is represented as mean ± SD for each electrode configuration (n = 6). Fatigue measurements using the conventional electrode configuration were conducted as baseline measurements at the first (CONV1) and last (CONV2) session for each subject. Values marked with an asterisk (*) were statistically significant against CONV1 and CONV2.