Table 1.
Participant demographics and the results of body impedance analysis and surface electromyography measurements.
| Variables (n = 179) | Mean ± SD | Min | Max | Median |
|---|---|---|---|---|
| Age (years) | 60.0 ± 11.1 | 41 | 79 | 60.5 |
| Sex (M:F) | 82:97 | - | - | - |
| Height (cm) | 162.7 ± 8.6 | 140 | 182 | 162.25 |
| BMI (kg/m2) | 24.6 ± 3.0 | 18.0 | 32.9 | 24.0 |
| Average step length (cm) | 62.8 ± 6.8 | 41.0 | 83.1 | 65.6 |
| ASM (kg)/(height, m)2 | 7.1 ± 1.1 | 5.2 | 9.4 | 7.0 |
| BFM (kg) | 18.9 ± 5.9 | 5.8 | 38.3 | 18.2 |
| Average RMS (µV) | ||||
| Knee flexion | 321.7 ± 128.8 | 84.4 | 789.2 | 310.8 |
| Knee extension | 233.0 ± 100.4 | 41.0 | 558.2 | 218.9 |
Data (except for sex) are presented as mean ± SD (standard deviation); Min, minimum; Max, maximum; BMI, body mass index; ASM, appendicular skeletal muscle mass; BFM, body fat mass; RMS, root mean square.