Table 1.
Basic characteristics of body composition of young healthy females included in the study (reference group) and elderly ones (studied group).
| Characteristics | Females 20–30 years (n = 648) mean ± SD |
Range | Elderly females (n = 100) mean ± SD |
Range | P value |
|---|---|---|---|---|---|
| Age, (years) | 22.29 ± 2.44 | 20.00–30.00 | 74.93 ± 8.53 | 60.00–90.00 | <0.001 |
| Weight, (kg) | 59.97 ± 9.22 | 41.60–96.90 | 65.67 ± 14.59 | 43.20–102.20 | <0.01 |
| Height, (m) | 1.66 ± 0.06 | 1.46–1.86 | 1.54 ± 0.06 | 1.38–1.71 | <0.001 |
| BMI, (kg/m2) | 21.67 ± 3.00 | 16.32–36.39 | 27.67 ± 5.49 | 18.98–41.30 | <0.001 |
| Muscle mass, (kg)* | 23.92 ± 3.00 | 16.80–39.80 | 21.01 ± 3.20 | 15.30–30.20 | <0.001 |
| Fat free mass, (kg)* | 43.85 ± 5.05 | 32.00–70.00 | 39.37 ± 5.29 | 29.80–54.80 | <0.001 |
| Appendicular lean mass, (kg) | 18.18 ± 2.49 | 11.46–29.55 | 15.09 ± 2.77 | 10.02–22.08 | <0.001 |
| Fat mass, (kg)* | 16.12 ± 6.03 | 5.70–47.90 | 26.30 ± 10.46 | 10.90–53.10 | <0.001 |
| Percent body fat*, (%) | 26.23 ± 6.18 | 12.10–50.10 | 38.72 ± 7.72 | 22.00–52.00 | <0.001 |
| Total body water*, (L) | 32.08 ± 3.72 | 19.10–51.10 | 28.95 ± 3.91 | 21.90–40.10 | <0.001 |
| ALM index, (kg/m2) | 6.55 ± 0.59 | 5.10–9.27 | 6.34 ± 0.89 | 4.61–8.27 | <0.001 |
BMI: body mass index; ALM: appendicular lean mass; SD: standard deviation; *these parameters are from the whole body.