Research Impact: Using compositional data analysis, the current study found that increased light-intensity physical activity (LIPA) was associated with lower BMI, percentage body fat and fat mass in older adults. Theoretically increasing LIPA by 30 minutes, with a corresponding decrease in either sedentary time or standing time, was associated with significant decreases in BMI, percentage body fat and fat mass. Promoting increased LIPA, with a corresponding decrease in sedentary time, may be an appropriate physical activity intervention strategy for improving adiposity in older adults. The current study found no evidence to suggest that standing may be a suitable activity to improve health.
Powell, C., Browne, L.D., Carson, B.P., Dowd, K.P., Perry, I.J., Kearney, P.M., Harrington, J.M. and Donnelly, A.E., 2019. Use of Compositional Data Analysis to Show Estimated Changes in Cardiometabolic Health by Reallocating Time to Light-Intensity Physical Activity in Older Adults. Sports Medicine, pp.1-13. DOI: 10.1007/s40279-019-01153-2