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A: Physical Activity (kcal/week) Level and Age
A LOWESS fit curve illustrates the curvilinear relationship between physical activity level (kcal/wk) and age. This figure illustrates an age-related decline in total physical activity that accelerates after age 65.
B: Vigorous Physical Activity (min/week) and Age
A LOWESS fit curve displays no significant age-related change in vigorous physical activity.
