Table 1. Change in muscle tone, stiffness and muscle contraction on each group.
| Region | Variable | Group | Pre-fatigue | Post-fatigue | 1 Day | 2 Day |
|---|---|---|---|---|---|---|
| Lateral gastrocnemius muscle | Muscle tone (Hz) | TENS | 17.4 ± 0.3 | 19.5 ± 0.8* | 17.8 ± 0.3† | 15.9 ± 0.8‡ |
| CT | 18.3 ± 0.3 | 19.7 ± 0.5* | 17.4 ± 0.4† | 17.4 ± 0.4 | ||
| Stiffness (N/m) | TENS | 323.3 ± 8.8 | 377.1 ± 12.7* | 317.6 ± 6.3† | 306.7 ± 4.9‡ | |
| CT | 320.6 ± 8.3 | 371.5 ± 15.7* | 296.0 ± 7.9† | 294.1 ± 9.2 | ||
| Medial gastrocnemius muscle | Muscle tone (Hz) | TENS | 16.8 ± 0.2 | 18.6 ± 0.3* | 16.1 ± 0.1† | 15.6 ± 0.8 |
| CT | 17.8 ± 0.4 | 19.4 ± 0.5* | 17.1 ± 0.5† | 17.1 ± 0.4 | ||
| Stiffness (N/m) | TENS | 297.8 ± 6.9 | 358.8 ± 6.7* | 293.6 ± 3.8† | 292.6 ± 4.6 | |
| CT | 302.1 ± 9.0 | 368.7 ± 14.6* | 287.0 ± 8.6† | 284.2 ± 6.0 | ||
| Gastrocnemius muscle contraction (N) | TENS | 245.5 ± 4.1 | 201.1 ± 3.8* | 237.9 ± 5.2† | 245.2 ± 3.8 | |
| CT | 251.0 ± 5.6 | 211.8 ± 7.7* | 243.5 ± 4.1† | 247.3 ± 5.1 | ||
Values are means ± SE. TENS: transcutaneous electrical nerve stimulation group, CT group: Combined therapy group. *Significant difference between pre-fatigue and post-fatigue, †Significant difference between post-fatigue and 1day, ǂSignificant difference between 1 day and 2 day