![]() Self-reported physical activity was not associated with brisk walking speed when adjusted for age and ratio of lean to fat mass. Men walked at an average speed+/-standard deviation of 5.72+/-0.69 km/h and women walked at an average speed of 5.54+/-0.64 km/h. Physiological measures and body composition were obtained through laboratory evaluation. Observed brisk walking speed was measured as the time it took participants to walk half a mile at "normal brisk walking speed." Self-reported physical activity was categorized as metabolic equivalent of the task (MET) in minutes of exercise reported in the previous 7 days. Subjects consisted of 212 participants in the Study of Physical Performance and Age-Related Changes in Sonomans who stated in a detailed home interview that they walked briskly for exercise. ![]() An additional aim of the study was to assess the contribution of self-reported physical activity to self-selected exercise intensity. To determine the self-selected exercise intensity of older adults who report that they walk briskly for exercise.
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