Table 1.
Descriptive characteristics.
| Young N=23 | Old N=52 | PAge | |
|---|---|---|---|
| Physical characteristics | |||
| Age (years) | 28 ± 4 | 71 ± 4 | <0.001 |
| Sex (F/M) | 11F/12M | 27F/25M | |
| Height (cm) | 171 ± 9 | 169 ± 10 | 0.36 |
| Weight (kg) | 74.4 ± 11.4 | 74.8 ± 13.6 | 0.92 |
| BMI (kg/m2) | 25.2 ± 2.4 | 26.15 ± 3.6 | 0.25 |
| SBP (mmHg) | 115 ± 9.7 | 129 ± 13 | <0.001 |
| DBP (mmHg) | 71 ± 9 | 74 ± 10 | 0.22 |
| Body composition | |||
| Total body Fat (%) | 32.5 ± 7.4 | 35.4 ± 7.7 | 0.13 |
| Fat, arms (kg) | 2.3 ± 0.7 | 2.6 ± 0.7 | 0.16 |
| Fat, legs (kg) | 8.3 ± 2.5 | 8.0 ± 2.5 | 0.72 |
| Fat, trunk (kg) | 11.7 ± 4.1 | 13.8 ± 5.2 | 0.10 |
| Total lean mass (kg) | 48.1 ± 8.8 | 45.9 ± 9.4 | 0.34 |
| Lean, arms (kg) | 5.5 ± 1.7 | 5.0 ± 1.4 | 0.19 |
| Lean, legs (kg) | 16.7 ± 3.2 | 15.1 ± 3.5 | 0.08 |
| Lean, trunk (kg) | 22.6 ± 3.8 | 22.5 ± 4.4 | 0.92 |
| ASMI (kg/m2) | 7.5 ± 1.2 | 7.0 ± 1.2 | 0.08 |
| Leg extension 1RM (kg) | 65.7 ± 19.3 | 44.0 ± 16.3 | <0.001 |
| Metabolic parameters | |||
| Glucose (mg/dL) | 85.1 ± 7.7 | 93.9 ± 8.0 | <0.001 |
| Insulin (mcIU/mL) | 6.8 ± 2.6 | 7.6 ± 5.4 | 0.51 |
| HOMA-IR | 1.4 ± 0.6 | 1.8 ± 1.5 | 0.24 |
| Cholesterol (mg/dL) | 166 ± 32 | 192 ± 36 | 0.003 |
| HDL (mg/dL) | 56.0 ± 14.8 | 63.3 ± 16.5 | 0.073 |
| LDL (mg/dL) | 94.7 ± 29.4 | 111 ± 30 | 0.038 |
| Triglycerides (mg/dL) | 75.1 ± 30.0 | 92.3 ± 40.2 | 0.070 |
| VO2 peak (L/min) | 2.9 ± 0.8 | 1.9 ± 0.5 | <0.001 |
| VO2 peak (mL/kg BW/min) | 38.6 ± 7.3 | 25.0 ± 5.0 | <0.001 |
| VO2 peak (mL/kg lean/min) | 59.7 ± 8.7 | 40.7 ± 6.4 | <0.001 |
M; Male, F; Female, BMI; body mass index, SBP; systolic blood pressure, DBP; diastolic blood pressure, VO2 peak; peak oxygen uptake, BW; body weight, ASMI; appendicular skeletal muscle index. Data are shown as mean ± SD.