Author Affiliation: Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, North Carolina.
Two recent observational studies examining the relationship between physical activity and cognitive function among older adults were recently published.1,2 In their cohort study, Vercambre and colleagues2 found an association between increasing energy expenditure and decreasing rates of cognitive decline. My colleagues and I have several concerns about the study, however.
Smith PJ. Physical Activity, Vascular Health, and Cognitive Impairment. Arch Intern Med. 2012;172(1):83-84. doi:10.1001/archinternmed.2011.615