Table 1.
Subject characteristics
| Young sedentary (n= 11) | Older sedentary (n= 9) | Older endurance- trained (n= 9) | |
|---|---|---|---|
| Body mass (kg) | 79 ± 3 | 83 ± 3 | 75 ± 3 |
| Body fat (%) | 20 ± 1 | 26 ± 2* | 22 ± 2† |
| BMI (kg m−2) | 23.5 ± 0.8 | 25.9 ± 1.0 | 24.6 ± 0.6 |
| Systolic BP (mmHg) | 113 ± 2 | 116 ± 4 | 113 ± 3 |
| Diastolic BP (mmHg) | 63 ± 2 | 73 ± 4* | 71 ± 2* |
| Heart rate (b.p.m.) | 56 ± 3 | 54 ± 2 | 50 ± 4 |
| Total cholesterol (mmol l−1) | 4.5 ± 0.2 | 5.1 ± 0.2 | 5.4 ± 0.3* |
| LDL cholesterol (mmol l−1) | 2.7 ± 0.2 | 3.1 ± 3 | 3.5 ± 0.2* |
| HDL cholesterol (mmol l−1) | 1.3 ± 0.1 | 1.2 ± 0.1 | 1.5 ± 0.1 |
| Plasma insulin (µU ml−1) | 5.7 ± 0.6 | 4.6 ± 0.7 | 4.6 ± 0.2 |
| Plasma glucose (mmol l−1) | 5.0 ± 0.1 | 5.2 ± 0.2 | 5.4 ± 0.2 |
| Plasma noradrenaline (pg ml−1) | 151 ± 16 | 245 ± 42* | 329 ± 38* |
| Plasma adrenaline (pg ml−1) | 43 ± 13 | 37 ± 13 | 72 ± 30 |
| Plasma endothelin-1 (pg ml−1) | 5.8 ± 0.3 | 6.9 ± 0.3* | 6.4 ± 0.5 |
| V̇O2,max (ml kg−1 min−1) | 48 ± 1 | 32 ± 1* | 40 ± 2*† |
Data are means ±s.e.m. BMI, body mass index; BP, blood pressure; V̇O2,max maximal oxygen consumption.
*
P < 0.05 versus young;
†
P < 0.05 versus older sedentary.