Table 1.
Subject characteristics and baseline haemodynamics
| Variable | Young | Older |
|---|---|---|
| Male : female | 9 : 5 | 9 : 5 |
| Age (years) | 22 ± 1 | 65 ± 2* |
| Body mass index (kg m−2) | 24.5 ± 0.8 | 24.1 ± 0.8 |
| Body fat (%) | 19.5 ± 2.62 | 29.04 ± 2.45* |
| Whole-body FFM (kg) | 58.68 ± 3.76 | 48.59 ± 3.48 |
| Forearm FFM (g) | 842 ± 75 | 700 ± 36 |
| Forearm volume (ml) | 968 ± 75 | 830 ± 68 |
| MVC (kg) | 44 ± 3 | 36 ± 3 |
| 10% MVC (kg) | 4.4 ± 0.3 | 3.6 ± 0.3 |
| Total cholesterol (mmol l−1) | 4.0 ± 0.3 | 5.1 ± 0.4* |
| LDL cholesterol (mmol l−1) | 2.6 ± 0.2 | 3.4 ± 0.3* |
| HDL cholesterol (mmol l−1) | 1.1 ± 0.1 | 1.2 ± 0.1 |
| Triglycerides (mmol l−1) | 0.7 ± 0.1 | 1.2 ± 0.3 |
| MAP (mmHg) | 94 ± 3 | 99 ± 2 |
| Heart rate (beats min−1) | 55 ± 2 | 59 ± 2 |
| Forearm blood flow (ml min−1) | 35 ± 6 | 34 ± 3 |
| Forearm blood flow (ml (100 g)−1 min−1) | 3.4 ± 0.4 | 4.1 ± 0.3 |
| Forearm VC (ml min−1 (100 mmHg)−1) | 36 ± 5 | 34 ± 3 |
Data presented as mean ±s.e.m. FFM = fat free mass; MVC = maximal voluntary contraction; LDL = low density lipoprotein; HDL = high density lipoprotein; MAP = mean arterial pressure; VC = vascular conductance.
*
P < 0.05 vs. young.