Frequency of mentally stimulating activities modifies the relationship between cardiovascular reactivity and executive function in old age (original) (raw)

Recent evidence suggests that younger and middle-age adults who show greater cardiovascular reactivity (CVR) to acute mental stress demonstrate better reasoning and memory skills. The purpose of this study was to examine whether older adults would exhibit a similar positive association between CVR and executive function and whether regular engagement in mentally stimulating activities (MSA) would moderate this association. Secondary cross-sectional analysis. Three clinical research centers in the Midwest and on the West Coast and East Coast. A total of 487 older adults participating in an ongoing national survey. Heart rate (HR) and low-frequency (LF) and high-frequency (HF) domains of heart rate variability (HRV) were measured at baseline and in response to standard mental stress tasks (Stroop color word task and mental arithmetic). Executive function was measured separately from the stress tasks by using five neuropsychological tests. MSA was measured by self-reported frequency of...