Association Between Cognitive and Physical Activity Participation and Life Satisfaction in Older Adults With Mild Cognitive Impairment: An Exploratory Cross-Sectional Study.

Higher cognitive activity scores were associated with greater odds of high life satisfaction among older adults with MCI.

• The study included 1760 older adults with MCI in Japan in a cross-sectional design.
• Participants were categorized into tertile groups (high/moderate/low) based on cognitive activity participation frequency.
• Odds ratios for high life satisfaction compared to the low score group: moderate CA score 1.235 (95% CI: 0.966–1.579); high CA score 1.339 (95% CI: 1.051–1.708).
• The moderate CA score group result was not statistically significant, while the high CA score group result was significant.

Higher physical activity scores were associated with greater odds of high life satisfaction among older adults with MCI.

• Participants were categorized into tertile groups (high/moderate/low) based on physical activity participation frequency across 11 physical activities.
• Odds ratios for high life satisfaction compared to the low score group: moderate PA score 1.341 (95% CI: 1.051–1.710); high PA score 1.369 (95% CI: 1.061–1.769).
• Both the moderate and high PA score groups showed statistically significant associations with high life satisfaction.
• Logistic regression models were used to examine the relationship between physical activity participation and life satisfaction.

Six specific activities were independently associated with high life satisfaction in older adults with MCI.

• The six activities associated with high life satisfaction were: writing for pleasure, participating in organized group discussions, playing tennis, participating in group exercise, climbing stairs, and babysitting.
• Participants were surveyed on six cognitive activities and 11 physical activities.
• MCI was evaluated using a cognitive function test assessing memory, attention, executive function, and processing speed.
• Life satisfaction was assessed using the Life Satisfaction Scale and dichotomized into high and low categories.

No significant interaction was found between activity participation and MCI subtype (amnestic vs. non-amnestic) in relation to life satisfaction.

• The study examined the association between life satisfaction and the interaction term between activity participation and MCI subtype.
• MCI subtypes compared were amnestic and non-amnestic.
• No significant associations between the interaction terms of activity participation and MCI subtype and life satisfaction were observed.
• This suggests the associations between activity participation and life satisfaction were not significantly different across MCI subtypes.

The study population consisted of 1760 older adults with MCI in Japan assessed through a cross-sectional survey design.

• Participants were surveyed regarding engagement in six cognitive and 11 physical activities.
• CA/PA scores were based on participation frequency, and participants were categorized into tertile groups (high/moderate/low).
• MCI was evaluated using a cognitive function test assessing memory, attention, executive function, and processing speed.
• A logistic regression model was used to examine the relationships between cognitive/physical activities and life satisfaction.