caa a22 4500 606153659 CHVBK 20210128100554.0 cr unu---uuuuu 210128e20150501xx s 000 0 eng 10.1007/s11121-014-0509-8 doi (NATIONALLICENCE)springer-10.1007/s11121-014-0509-8 Components of Late-Life Exercise and Cognitive Function: an 8-Year Longitudinal Study [Elektronische Daten] [Da-Chen Chu, Kenneth Fox, Li-Jung Chen, Po-Wen Ku] The preventive effect of late-life physical exercise on cognitive deterioration has been reported in many cohort studies. However, the effect of exercise, independent of other cognitively demanding and social activities, is equivocal and little is known about the relative contributions of frequency, intensity, and duration of exercise. This study aimed to examine the relationships of exercise and its underlying components with cognitive function and rate of cognitive change over an 8-year period in a nationally representative sample of older Taiwanese. Data from the 1999, 2003, and 2007 phases of the nationwide longitudinal survey were used. Data from a fixed cohort of 1,268 participants aged 70years or older in 1999 with 8years of follow-up were analyzed. Cognitive function was assessed using the Short Portable Mental Status Questionnaire. Self-reported frequency, intensity, and duration of exercise were collected. A generalized estimating equation with multivariate adjustment for sociodemographic variables, cognitive and social leisure activities, lifestyle behaviors, and health status was calculated. Participants who were physically active during leisure time had better subsequent cognitive function (incident rate ratios [IRR] = 0.63; 95% CI, 0.54-0.75) and a slower rate of cognitive decline (p = 0.01). Among the components of exercise, only duration emerged as a predictor of cognitive function (p = 0.01). Older adults engaging in exercise for at least 30min or more per session are likely to reduce the risk of subsequent cognitive decline. This research supports the case for physical exercise programs for older adults in order to help prevent loss of cognitive function. Society for Prevention Research, 2014 Cognitive impairment nationallicence Dementia nationallicence Older adults nationallicence Physical exercise nationallicence Chu Da-Chen Institute of Public Health and Community Medicine Research Center, National Yang-Ming University, Taipei, Taiwan aut Fox Kenneth Centre for Exercise, Nutrition and Health Sciences, University of Bristol, Bristol, UK aut Chen Li-Jung Department of Exercise Health Science, National Taiwan University of Sport, Taichung, Taiwan aut Ku Po-Wen Graduate Institute of Sports and Health, National Changhua University of Education, No. 1, Jin-De Rd, 500, Changhua City, Taiwan aut Prevention Science Springer US; http://www.springer-ny.com 16/4(2015-05-01), 568-577 1389-4986 16:4<568 2015 16 11121 https://doi.org/10.1007/s11121-014-0509-8 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11121-014-0509-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Chu Da-Chen Institute of Public Health and Community Medicine Research Center, National Yang-Ming University, Taipei, Taiwan aut NATIONALLICENCE 700 1- Fox Kenneth Centre for Exercise, Nutrition and Health Sciences, University of Bristol, Bristol, UK aut NATIONALLICENCE 700 1- Chen Li-Jung Department of Exercise Health Science, National Taiwan University of Sport, Taichung, Taiwan aut NATIONALLICENCE 700 1- Ku Po-Wen Graduate Institute of Sports and Health, National Changhua University of Education, No. 1, Jin-De Rd, 500, Changhua City, Taiwan aut NATIONALLICENCE 773 0- Prevention Science Springer US; http://www.springer-ny.com 16/4(2015-05-01), 568-577 1389-4986 16:4<568 2015 16 11121