Table 3. Combined (left and right) changes in jaw and cervical muscles stiffness, frequency and relaxation time before, during and after dry immersion.
| BDC-1 | DI 1 | DI 3 | R0 | p value | |
|---|---|---|---|---|---|
| Parameter | (n = 9) | (n = 9) | (n = 9) | (n = 9) | |
| Masseters | |||||
| Stiffness (N. m-1) | 334.1 ± 8.0 | 329.8 ± 10.3 | 323.2 ± 15.5 | 367.9 ± 21.3 * | 0.028 |
| Frequency (Hz) | 16.5 ± 0.3 | 16.2 ± 0.3 | 16.2 ± 0.4 | 17.8 ± 0.7 * | 0.003 |
| Relaxation time (ms) | 16.7 ± 0.4 | 16.7 ± 0.4 | 17.3± 0.8 | 15.2 ± 0.7 ** | 0.011 |
| Sternocleidomastoid | |||||
| Stiffness (N. m-1) | 211.0 ± 17.7 | 190.3 ± 8.9 | 199.8 ± 12.0 | 197.8 ± 10.5 | 0.485 |
| Frequency (Hz) | 13.7 ± 0.5 | 13.1 ± 0.3 | 13.4 ± 0.3 | 13.4 ± 0.3 | 0.478 |
| Relaxation time (ms) | 23.2 ± 0.8 | 24.3 ± 0.7 | 23.5 ± 0.8 | 23.4 ± 0.9 | 0.663 |
Days are indicated as follows: the last day of control period (BDC-1), the first day (DI 1) and third day (DI 3) of dry immersion, and the first day of recovery period (R0). Values are means ± standard error.
*p < 0.05;
**p < 0.01 compared with BDC-1 value.