Table 2

Regular physical activity and serum hormone concentrations in elderly men (mean ± S.E.M.)

Hormones
Elderly runners
Sedentary controls

DHEA-S (μg/dl)
79 ± 6
92 ± 14
Free testosterone (pmol/l)
258.4 ± 15.5
271.6 ± 19.1
Total testosterone (ng/dl)
529 ± 41
456 ± 36
GH (μg/l)
0.44 ± 0.12
0.68 ± 0.32
Cortisol (μg/dl)
13.7 ± 0.6
13.2 ± 0.8
Cortisol/DHEA-S
0.19 ± 0.01
0.19 ± 0.02

No statistical differences were observed between groups

Arai et al. Immunity & Ageing 2006 3:9   doi:10.1186/1742-4933-3-9