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Mean MUP and SMUP morphology and mean MU firing rates across the four groups. |
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| Control n = 37 |
At-risk n = 8 |
LE n = 11 |
NSAP n = 16 |
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| Mean ± SD |
Mean ± SD |
Mean ± SD |
Mean ± SD |
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| Needle-detected MUPs |
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| Amplitude (μV) |
491.1 ± 300.7* |
444.1 ± 233.4 |
519.0 ± 426.6† |
420.9 ± 282.4**‡ |
| Duration (ms) |
7.64 ± 2.85* |
9.76 ± 2.99**‡ |
9.70 ± 3.16**‡ |
8.36 ± 2.68**† |
| Number of Phases |
2.55 ± 0.71* |
2.72 ± 0.77 |
2.63 ± 0.81 |
2.74 ± 0.82** |
| AAR (ms) |
1.27 ± 0.43* |
1.43 ± 0.39**▫ |
1.62 ± 0.59**†▫▫ |
1.34 ± 0.43**‡ |
| Mean MU Firing rate (Hz) |
14.98 ± 2.97* |
14.73 ± 3.04 |
13.86 ± 2.71** |
14.53 ± 2.68** |
| Surface-detected MUPs |
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| Amplitude (mV) |
113.73 ± 90.73* |
91.28 ± 49.45** |
111.14 ± 109.53† |
65.75 ± 41.58**‡ |
| Area (mVms) |
593.9 ± 507.4* |
424.4 ± 230.1** |
502.7 ± 518.7† |
273.7 ± 182.6**‡ |
| Duration (ms) |
19.76 ± 5.52* |
19.69 ± 4.54† |
19.21 ± 5.93 |
17.25 ± 5.21**‡ |
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Parameters marked with * are significantly different from the other groups parameters marked with ** (p < 0.006) Parameters marked with † are significantly different from the other groups parameters marked with ‡ (p < 0.006) Parameters marked with ▫ are significantly different from the other groups parameters marked with ▫▫ (p < 0.006) | ||||
Calder et al. Journal of NeuroEngineering and Rehabilitation 2008 5:34 doi:10.1186/1743-0003-5-34 |
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