Table 1. Participant characteristics, isometric knee extension strength, and ankle range of motion.
| Adults (18 to 64 years) | Elderly (above 65 years) | p-value | |||
| (n=50) | (n=20) | ||||
| Mean | SD | Mean | SD | ||
| Age (years) | 30.6 | 12.4 | 73.6 | 5.6 | <0.001 |
| Body Weight (kg) | 63.5 | 10.2 | 53.5 | 7.3 | <0.001 |
| Height (cm) | 165.7 | 8.2 | 154.9 | 6.5 | <0.001 |
| Body Mass Index (kg/m2) | 23.1 | 3.1 | 22.3 | 2.3 | 0.375 |
| Isometric Knee Extension Strength (kgf) | |||||
| Right | 46.0 | 12.4 | 25.5 | 8.6 | <0.001 |
| Left | 45.9 | 12.1 | 26.8 | 9.7 | <0.001 |
| Ankle angle (plantar flexion) (degrees) | |||||
| Right | 51.6 | 11.6 | 50.3 | 7.7 | 0.649 |
| Left | 51.0 | 11.7 | 51.0 | 7.9 | 0.962 |
| Ankle angle (dorsiflexion) (degrees) | |||||
| Right | 19.0 | 5.9 | 19.4 | 3.9 | 0.922 |
| Left | 18.7 | 5.8 | 18.8 | 4.5 | 0.887 |