Higher Cardiorespiratory Fitness Is Associated With Better Verbal Generativity in Community-Dwelling Older Adults

in Journal of Aging and Physical Activity
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Objectives: To examine the associations between physical activity duration and intensity, cardiorespiratory fitness, and executive function in older adults. Methods: Data from 99 cognitively normal adults (age = 69.10 ± 5.1 years; n = 54 females) were used in the current study. Physical activity (intensity and duration) was measured with the International Physical Activity Questionnaire, and fitness was measured by analysis of maximal aerobic capacity, VO2peak. Executive function was measured comprehensively, including measures of Shifting, Updating, Inhibition, Generativity, and Nonverbal Reasoning. Results: Higher levels of cardiorespiratory fitness were associated with better performance on Generativity (B = .55; 95% confidence interval [.15, .97]). No significant associations were found between self-reported physical activity intensity/duration and executive functions. Discussion: To our knowledge, this study is the first to identify an association between fitness and Generativity. Associations between physical activity duration and intensity and executive function requires further study, using objective physical activity measures and longitudinal observations.

Frost, Weinborn, and Gignac are with the School of Psychological Science, University of Western Australia, Crawley, Western Australia, Australia. Markovic, Peiffer, and Brown are with the School of Psychology and Exercise Science, Murdoch University, Murdoch, Western Australia, Australia. Frost, Weinborn, Markovic, Rainey-Smith, Sohrabi, Martins, and Brown are with Australian Alzheimer’s Research Foundation, Sarich Neuroscience Research Institute, Nedlands, Western Australia, Australia. Frost, Markovic, Rainey-Smith, Sohrabi, Peiffer, and Brown are with Aging, Cognition, and Exercise Research Group, School of Psychology and Exercise Science, Murdoch University, Murdoch, Western Australia, Australia. Weinborn, Rainey-Smith, Sohrabi, and Martins are with the School of Medical and Health Sciences, Edith Cowan University, Joondalup, Western Australia, Australia. Sohrabi and Martins are with the School of Biomedical Sciences, Faculty of Medicine and Health Sciences, Macquarie University, New South Wales, Australia.

Frost (natalie.frost@research.uwa.edu.au) is corresponding author.
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