Association of physical activity with body mass index, waist circumference and incidence of obesity in older adults

Background There is limited, and inconsistent, data on the prospective association between physical activity and surrogate markers of adiposity in older adults. We aim to determine the prospective association of leisure time physical activity (LTPA) with body mass index (BMI), waist circumference (WC) and the incidence of obesity. Methods This prospective analysis included 7144 individuals with a mean age of 67 ± 6.2 years, from the PREvencion con DIeta MEDiterranea (PREDIMED) study. BMI and WC were measured and LTPA was recorded using the Minnesota Leisure Time Physical Activity Questionnaire. Exposure and outcome variables were calculated as cumulative average of repeated measurements. Re…