Table 2.
Characteristic of participants; subgroup-analysis of obesity (BMI ≥ 25 kg/m2) N = 1995
| Women (n = 1412) | Men (n = 583) | |||||
|---|---|---|---|---|---|---|
| Variables | Normal muscle mass |
Low muscle mass |
P | Normal muscle mass |
Low muscle mass |
P |
| n (%) | 1271 (90) | 141 (10) | 554 (95) | 29 (5) | ||
| Age (years) | 67.0 ± 4.9 | 69.9 ± 6.1 | < 0.001 | 67.7 ± 5.3 | 71.1 ± 6.1 | < 0.001 |
| ASM/height2 (kg/m2) | 6.5 ± 0.5 | 5.4 ± 0.3 | < 0.001 | 7.6 ± 0.5 | 6.7 ± 0.2 | < 0.001 |
| HGS (kg) | 21.2 ± 3.7 | 18.3 ± 3.3 | < 0.001 | 32.1 ± 5.8 | 25.3 ± 4.9 | < 0.001 |
| Gait speed (m/s) | 1.4 ± 0.2 | 1.3 ± 0.2 | < 0.001 | 1.5 ± 0.3 | 1.4 ± 0.2 | 0.064 |
| Weight (kg) | 66.3 ± 4.2 | 57.9 ± 4.1 | < 0.001 | 70.8 ± 8.6 | 68.2 ± 6.0 | < 0.001 |
| Height (m) | 153.0 ± 5.1 | 148.4 ± 4.9 | < 0.001 | 167.4 ± 5.5 | 160.2 ± 5.0 | < 0.001 |
| Waist (cm) | 89.4 ± 8.2 | 86.0 ± 6.2 | < 0.001 | 90.5 ± 8.5 | 94.8 ± 5.3 | < 0.001 |
| BMI (kg/m2) | 28.0 ± 2.7 | 26.3 ± 1.1 | < 0.001 | 27.3 ± 2.08 | 26.5 ± 1.2 | < 0.001 |
| Midarm circumference (cm) | 27.6 ± 3.1 | 27.8 ± 2.3 | < 0.001 | 28.3 ± 2.8 | 27.3 ± 1.7 | < 0.001 |
| Calf circumference (cm) | 35.3 ± 2.7 | 0.134.5 ± 2.4 | < 0.001 | 36.9 ± 2.5 | 35.3 ± 1.6 | < 0.001 |
Values were expressed as mean ± standard deviation or n (%)
ASMI, appendicular skeletal muscle mass index; HGS, Handgrip strength BMI, body mass index