Investigating the effectiveness of sports intervention based on intergenerational programs on happiness and mental well-being in bodybuilding athletes

The purpose of this research is to determine the effectiveness of sports intervention based on intergenerational programs on happiness and mental well-being in bodybuilding athletes. The research method is semi-experimental and pre-test-post-test with a control group. The experimental group underwent sports intervention based on intergenerational programs, but no intervention was done for the control group. The study sample includes 30 male bodybuilders in the form of two groups (including 15 bodybuilders as an experimental group and 15 bodybuilders as a control group) who were selected by multi-stage cluster random sampling. Data collection tools included the Oxford happiness questionnaire (1995), the mental well-being short form of Riff and Singer (2006) and the sports intervention method based on intergenerational programs. ANCOVA and SPSS25 software were used to analyze the data of this research. The results showed that there was a significant difference between the pre-test and post-test scores of the experimental group, as well as a significant difference between the two experimental and control groups in the happiness and mental well-being of the fitness athletes (F(1,1)=18,93 respectively). /227 F(1,1) = p˂0.05). Performing sports interventions on the variable of happiness and mental well-being had a larger effect size (Eta square equal to 0.82 and 0.81, respectively). Bodybuilding athletes who participated in sports intervention sessions based on intergenerational programs compared to the control group and compared to before the intervention, overall experienced more mental well-being and happiness.