Table 2.
Root mean square (RMS), average electromyographic activity (AEMG), integrated electromyogram (IEMG), mean power frequency (MPF), and median frequency (MF) before and after sixteen weeks, for the SG and CG. Data are means ± SD.
| Study group (N = 55) |
Control group (N = 55) |
||||
|---|---|---|---|---|---|
| Pre | Post | Pre | Post | ||
| RMS (uV) | Vastus lateralis | 85.85 ± 41.70 | 98.00 ± 39.33 | 78.50 ± 31.15 | 84.30 ± 29.14 |
| Vastus medialis | 80.05 ± 33.74 | 139.90 ± 44.98∗ | 72.35 ± 23.60 | 71.45 ± 23.67 | |
| AEMG (uV) | Vastus lateralis | 64.35 ± 30.57 | 80.55 ± 32.27 | 63.85 ± 27.33 | 67.25 ± 26.94 |
| Vastus medialis | 67.75 ± 30.36 | 115.80 ± 58.00∗ | 60.70 ± 20.53 | 55.85 ± 20.86 | |
| IEMG (uVs) | Vastus lateralis | 106.13 ± 59.74 | 123.73 ± 53.57 | 98.28 ± 48.66 | 99.38 ± 40.55 |
| Vastus medialis | 114.45 ± 41.81 | 174.43 ± 66.44∗ | 90.1 ± 41.55 | 93.78 ± 52.16 | |
| MPF (Hz) | Vastus lateralis | 75.55 ± 9.05 | 76.25 ± 12.58 | 73.45 ± 7.85 | 75.55 ± 8.39 |
| Vastus medialis | 69.75 ± 11.28 | 70.75 ± 11.18 | 69.00 ± 8.65 | 71.15 ± 6.81 | |
| MF (Hz) | Vastus lateralis | 69.02 ± 10.55 | 68.62 ± 11.32 | 66.71 ± 11.42 | 69.66 ± 11.94 |
| Vastus medialis | 62.08 ± 6.99 | 63.68 ± 7.55 | 61.74 ± 7.66 | 63.86 ± 6.79 | |
∗Value after sixteen weeks of Baduanjin exercise is significantly larger than the value before training (p < 0.025).