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| T1 | T2 | T3 | T4 | D1 | D2 | |
|---|---|---|---|---|---|---|
| S group | 15.1±1.3 | 15.6±1.3 | 15.2±1.3 | 0.6±1.2 | 0.1±1.0 | |
| TS group | 14.7±1.9 | 21.9±1.9 | 20.6±2.3 | 17.3±1.1 | 5.9±2.0** | 2.6±1.4** |
S group: stretching alone; TS group: TENS and stretching. **D1&D2: S group vs. TS group (p<0.01)
