Methods: We enrolled 571 older Hispanics/Latinos (≥60 years) in an exercise program with follow-up supports while also randomly assigning them to either: a) a treatment group – to receive an attribution-retraining program to dispel the idea physical activity declines with age or b) a control group – to received general health education. We collected data at baseline and follow-up (1-month, 12- month and 24 month) and compared longitudinal changes in objective and subjective measures of physical activity. We used a digital pedometer to assess number of steps taken per week. Mixed-effects linear regression was used to determine the effects of exercise class and the attribution-retraining component on longitudinal changes in number of steps measured using the pedometer.
Results: Our sample reflected the demographics the aging Hispanic/Latino foreign-born population. With a mean age of 73 years (SD=6.8), most were women (77% female). They had low levels of income (84%<$20,000) and education (59.3%<8thgrade). In analyses adjusted for age, sex, education, income and medical comorbidities, participants in both intervention arms displayed higher number of steps at the 12-month follow-up (β=5149.23, p<0.0001 ) and at the 24 month (β=7561.5, p<0.0001) follow-up when compared to original baseline scores. Participants assigned to intervention group consistently showed a greater improvement in pedometer steps than those assigned to control group, but this difference was only significant for the follow-up at 12-months (β=1038.0, p=0.053) and not at 24-months (β=791.2, p=0.162).
Conclusions: Overall, participants in both arms of the intervention benefitted from the exercise intervention. Those who received the attribution retraining intervention improved their physical activity (had a greater number of steps) compared to the control group but this improvement was not significant at the 24-month mark. These finding suggests that while attribution-retaining program can have an effect on improving physical activity among seniors, this effect is less robust than actually having access to a structured exercise program. Regardless of how one thinks about aging, the presence of an exercise program is a powerful antidote to a sedentary lifestyle for older Hispanics/Latinos.