Table 1. Subject characteristics.
| Characteristics | SPT group (n = 14) | TPT group (n = 17) |
| Sex; male/female (n) | 1/13 | 1/16 |
| Age (years)# | 69.8±8.4 | 67.8±6.4 |
| (Range) | (53 to 84) | (52 to 76) |
| Height (cm)# | 153.6±7.4 | 153.5±6.4 |
| Weight (kg)# | 61.7±6.5 | 62.3±11.2 |
| Body mass index-BMI (kg/m2)# | 26.3±3.6 | 26.4±3.8 |
| Visual Analogue # Scale-VAS (cm) | 6.35±2.01 | 6.25±1.32 |
| Domain of pain (n) | ||
| Left knee | 3 | 1 |
| Right knee | 1 | 3 |
| Both knees | 10 | 13 |
| Period of pain (n) | ||
| < 3 months | - | - |
| 1 year < 3 months | 1 | 2 |
| 1–3 years | 4 | 9 |
| > 3 years | 9 | 6 |
# Values are presented as the mean ± standard deviation (SD)