Table 2.
Results of different NMES currents and phase durations.
| PC 500 | PC 200 | KFAC 500 | KFAC 200 | |
|---|---|---|---|---|
| MVC max (Nm) | 269 (244, 294) | 265 (243, 288) | 262 (235, 289) | 262 (236, 288) |
| Absolute torque max (Nm) | 171a (153, 188) | 122 (102, 142) | 172a (148, 197) | 144 (125, 163) |
| Relative torque max (% MVC) | 71a (62, 79) | 56 (44, 67) | 72a (60, 84) | 65 (52, 77) |
| Discomfort (0, 10) | 9.8 (9.5, 10.0) | 9.0 (8.4, 9.7) | 9.2 (8.7, 9.8) | 9.3 (8.9, 9.8) |
| Intensity max (mA) | 128 (94, 175) | 155b (118, 193) | 131 (104, 159) | 150b (128, 188) |
Values are reported as mean (95% confidence interval). KFAC, kHz frequency alternating currents; NMES, neuromuscular electrical stimulation; MVC, maximal voluntary contraction; PC, pulsed current.
a
Phase durations of 500 µs produced greater absolute and evoked torque maximum than 200 µs.
b
Phase durations of 200 µs displayed higher values of intensity when compared 500 µs.