RESUMEN
OBJECTIVES: This study aimed to compare the effects of laughter yoga and music intervention on depression, anxiety, and stress in aged individuals referred to Rafsanjan health centers. METHOD: In this 3-arm randomized clinical trial, 91 depressed aged participants aged 60-75 years, referred to Rafsanjan health centers, were randomly assigned to intervention and control groups. The study followed a parallel group design with an allocation ratio of 1:1. The laughter yoga intervention was conducted twice a week for eight weeks, and music intervention consisted of 30-min sessions twice a week for eight weeks. The control group received no intervention ('No treatment' concurrent control). Assessments for depressive symptoms (primary outcome), anxiety, and stress were conducted at baseline, post-intervention, and one month after the intervention. RESULTS: A total of 84 patients were analyzed in three groups included the laughter yoga intervention (n = 31), music intervention (n = 25), or control group (n = 28). Repeated measures ANOVA revealed a significant decrease in depressive and anxiety symptoms (p < 0.001) from pre-test to post-test and one-month follow-ups. The greatest impact of the intervention programs on stress was observed immediately after the intervention, but stress increased one month after the intervention programs (p = 0.125). CONCLUSION: Both laughter yoga and music interventions proved effective in improving depression, anxiety, and stress in aged individuals. However, laughter yoga intervention demonstrated a superior effect and better acceptance among elders.