Effects of a group-based physical and cognitive intervention on social activity and quality of life for elderly people with dementia in a geriatric health service facility: a quasi-randomised controlled trial.

BACKGROUND The aim of this study was to assess the effects of group-based motor and cognitive-combined intervention on social activity and quality of life. METHODS This quasi-randomised controlled trial included 31 elderly participants with dementia in a geriatric health service facility. Participants were randomly allocated to the intervention group (n = 16) or the control group (n = 15) by stratification of cognitive function. The 8-week intervention program consisted of group exercise and cognitive stimulation twice per week for 45 min per session. Outcome measures were social activity in daily behaviour, cognitive function, apathy, muscle and grip strength, independence of activity of daily living, life-space, and objective quality of life (QOL). RESULTS Twenty-five participants were analysed (10 in the control group, 15 in the intervention group). Analysis of covariance with covariates of age, gender, and baseline data showed a significant difference in social activity (F = 8.67, P = 0.008; significant decline in control group vs. maintenance in intervention group) and QOL (F = 9.74, P = 0.006; maintenance in control group vs. tendency of improvement in intervention group). A Wilcoxon signed-rank test revealed that helping behaviour (P = 0.035) increased in the intervention group, whereas interest to the surrounding (P = 0.026) decreased in the control group. CONCLUSIONS Group-based combined intervention for dementia is effective for maintaining social activity and QOL in a geriatric health service facility.