Table 1.
Age, weight, VRS, NDI, STAI, MH, sAA, HR, and HRV values at pretreatment for each group.
| C group (n = 11) | LP group (n = 11) | DP group (n = 11) | P value | |
|---|---|---|---|---|
| Age (yr) | 34.8 (4.0) | 35.5 (6.4) | 37.2 (7.0) | .637 |
| Weight (kg) | 50.4 (6.8) | 52.3 (10.1) | 52.2 (4.8) | .643 |
| VRS | 1.8 (0.6) | 2.1 (0.5) | 1.7 (0.8) | .413 |
| NDI | 7.9 (3.8) | 9.4 (4.4) | 7.6 (4.6) | .430 |
| STAI | 39.2 (9.5) | 44.5 (8.0) | 43.2 (6.8) | .772 |
| MH (N) | 56.9 (5.0) | 57.4 (4.5) | 56.2 (5.3) | .507 |
| sAA (kU/l) | 38.2 (20.1) | 20.0 (9.0) | 36.8 (27.9) | .079 |
| HR (bpm) | 65.4 (8.7) | 65.8 (6.7) | 62.3 (14.1) | .941 |
| LF (ms2) | 490.7(409.2) | 274.2 (253.3) | 494.1 (1050.7) | .084 |
| HF (ms2) | 381.8(338.3) | 212.8 (186.7) | 764.8 (1045.2) | .587 |
| LF/HF | 1.7(1.4) | 1.4 (0.8) | 1.0 (0.6) | .399 |
Values expressed as mean (SD).VRS: verbal rating scale. NDI: Neck Disability Index. STAI: State-Trait Anxiety Inventory-I. MH: muscle hardness. sAA: salivary alpha-amylase. HR: heart rate. LF: the power of low-frequency (0.04–0.15 Hz, LF) component of heart rate variability (HRV). HF: the power of high-frequency (0.15–0.4 Hz, HF) component of HRV. LF/HF: LF/HF ratio of HRV.