© 1983 Oxford University Press
research-article |
HEART RATE, URINARY CATECHOLAMINES AND ANXIETY RESPONSES DURING MENTAL STRESS IN MEN IN THEIR FIFTIES AND SEVENTIES



* Unité de Recherches Gérontologiques de l'INSERM (U118) et Centre de Gérontologie de l'Association Claude Bernard 29 rue Wilhern, F-75016, Paris, France
Groupe Hospitalier Sainte Périne Paris
Laboratoire de Physiologie, Faculté de Médecine Pitié-Salpetrière Paris
Alterations with ageing in the responses of heart rate (HR), urinary excretion of free epinephrine (E) and norepinephrine (NE) and anxiety were investigated during mild mental stress. Forty-eight normal male volunteers were studied: in control conditions; when subjected to psychometric tests; and during recovery. Men in their seventies had lower baseline levels of HR, E and NE than men in their fifties. Several anxiety indices were positively correlated with E. HR and NE were positively correlated. During stress, mean HR and E levels increased in the two age groups by the same percentages. Mean HR and E levels returned to pre-stress values more slowly in the older age group.