Relationship between Mild Cognitive Impairment and Physical Activity in Patients with Heart Disease

Abstract

[Purpose] This study researched the relationship between mild cognitive impairment (MCI) and physical activity (PA) in patients with heart disease. [Participants and Methods] Forty-eight patients (mean age 72.6 ± 6.9 years) with heart disease were included in this study. MCI was evaluated using the Japanese version of the Montreal Cognitive Assessment (MoCA-J). PA was evaluated by a Fitbit inspire (Fitbit Inc.) for a week which calculated the average number of steps per day as a variable. Partial correlation analysis adjusted for age and sex was performed to analyze the correlation between the MoCA-J and PA. [Results] The mean score of the MoCA-J was 25 ± 3.6 points and that of PA was 5337 ± 2534 steps/day. The partial correlation analysis revealed a strong correlation between the MoCA-J and PA (r＝0.66). [Conclusion] Early detection of MCI is necessary for reducing the risk of dementia and improving PA.