Table 7.
Comparison of MUAP Amplitude of Groups at Baseline Measurement and on POD 6
| Amplitudea | Group n = 19 | Pre Mean ± Standard Deviation | Post Mean ± Standard Deviation | Mean Difference |
|---|---|---|---|---|
| Mild contraction | Control | 393.4 ± 435.537 | 395.67 ± 421.17 | 2.27 |
| Experimental | 155.5 ± 335.70 | 360.9 ± 229.24 | 205.4 | |
| Moderate contraction | Control | 225.6 ± 287.9 | 221 ± 239.9 | –4 |
| Experimental | 147.5 ± 304.8 | 274.9 ± 236.41 | 127.4 | |
| Maximum contraction | Control | 210 ± 175.6 | 185.1 ± 150.7 | –24.9 |
| Experimental | 125.3 ± 237.6 | 433.4 ± 335.5 | 308.1 |
MUAP, motor unit action potential; POD, postoperative day.
a
Amplitude measured in microvolts (µV).