Efficacy of a lifestyle intervention for elderly in long-term care: a randomized controlled trial

BACKGROUND: Long term care (LTC) services represent an important element of worldwide health systems, providing medical care and social services to thousands of elderlies. In this setting inadequate food consumption and lack of physical exercise represent major causes of mortality and morbidity due to malnutrition, sarcopenia, osteoporosis, and dehydration. While it has been acknowledged that these conditions are potentially reversible with proper lifestyle medicine interventions, the latter are rarely implemented and evaluated in LTC owing to their intrinsic complexity. METHODS: A randomized controlled trial was conducted to assess the effectiveness of a three-months combined food-physical exercise lifestyle intervention in elderlies living in an Italian LTC facility. The diet was designed to provide high levels of energy, proteins, leucine, and calcium. The physical exercise treatment was delivered two times per week, with a moderate to high effort requested to subjects. At baseline and at the end of the intervention subjects were evaluated using the Barthel Index, Activities of Daily Living, and Tinetti scales. RESULTS: 54 participants took part to the trial. At the end of the study the intervention group showed a significant improvement in all the scales. They burned 287 Kcal/week, significantly more than the control group. In contrast to the study protocol, they introduced 11% less calories than the control group. CONCLUSIONS: This intervention has been proved effective in increasing functionality, with the beneficial effect that might be primarily attributed to the physical exercise, considering the low adherence to diet in the intervention group. This evidence supports the hypothesis that these interventions, despite the effectiveness, are complex to be powerfully implemented. While our results encourage the efficacy of lifestyle interventions in LTC, more studies are needed to deeply understand barriers and facilitators for an effective implementation. KEY MESSAGES: • This lifestyle intervention proved effective in improving functionality in institutionalized elderlies. • The low adherence to diet highlights challenges and complexities of lifestyle interventions in LTC.