Cardiorespiratory fitness as a feature of metabolic syndrome in older men and women: the Dose-Responses to Exercise Training study (DR's EXTRA).

Objective: We studied the associations of cardiorespiratory fitness with metabolic syndrome in older men and women, because such data are limited in representative population samples.

Research Design And Methods: We studied a population sample of 671 men and 676 women aged 57-79 years at baseline of a randomized controlled intervention study. We assessed maximal oxygen uptake (Vo(2max)) by respiratory gas analysis during a maximal bicycle exercise test.