Bonnefoy M, Kostka T, Patricot M C, Berthouze S E, Lacour J R
Service de Médecine Gériatrique, Centre Hospitalier Lyon-Sud and Centre de Recherche en Nutrition Humaine de Lyon (CNRHL), Lyon, France.
J Sports Med Phys Fitness. 2001 Mar;41(1):78-82.
To examine the influence of long-term modifications in habitual physical activity (PA) on resting total testosterone (TT) concentrations in a group of healthy elderly subjects.
6-month prospective study.
University research departments of exercise physiology and geriatric medicine.
thirty-one independent, community dwelling elderly subjects (16 men and 15 women) aged > 65 who volunteered to participate.
correlational study.
PA was evaluated by a questionnaire QAPSE (Questionnaire d Activité Physique Saint-Etienne) and expressed by two activity indices: mean habitual daily energy expenditure (MHDEE) and daily energy expenditure corresponding to leisure time sports activities (Sports activity index).
Changes in resting TT concentrations were not related to changes in MHDEE (r = -0.28; p = 0.30 and r = -0.001; p=0.99) and Sports activity (r = -0.30; p = 0.26 and r = -0.05; p = 0.85) in men and women, respectively. Similarly, relative (%) changes in TT were not related to relative changes in MHDEE (r = -0.16; p=0.55 and r = 0.17; p=0.55) and Sports activity (r = -0.11; p=0.68 and r = 0.02; p = 0.92).
The levels of habitual PA undertaken by an average senior do not appear to affect TT levels in healthy active elderly men and women.
