Testing the effectiveness of the exercise plus program in older women post-hip fracture.

BACKGROUND: Exercise is an important strategy with potential to improve recovery in older adults following a hip fracture. PURPOSE: The purpose of this study was to test the impact of a self-efficacy based intervention, the Exercise Plus Program, and the different components of the intervention, on self-efficacy, outcome expectations, and exercise behavior among older women post-hip fracture. METHODS: Participants were randomized to one of four groups: exercise plus, exercise only, plus only (i.e., motivation), or routine care. Data collection was done at baseline (within 22 days of fracture), 2, 6, and 12 months post-hip fracture. RESULTS: A total of 209 women were recruited with an average age of 81.0 years (SD=6.9). The majority was White (97.1%), was widowed (57.2%), and had a high school education (66.7%). Generalized Estimating Equations were used to perform repeated measures analyses. No differences in trajectories of recovery were observed for self-efficacy or outcome expectations. A statistically significant difference in the overall trajectory of time in exercise was seen (p<.001), with more time spent exercising in all three treatment groups. CONCLUSIONS: The study demonstrated that it was possible to engage these women in a home-based exercise program and that the plus only, exercise only, and the exercise plus groups all increased exercise.

The relationship between psychosocial state and exercise behavior of older women 2 months after hip fracture.

Despite the potential benefits associated with exercise after hip fracture, those who have sustained hip fractures are among the least likely to engage in regular exercise (resistive or aerobic). This article describes the psychosocial state, specifically the self-efficacy expectations and outcome expectations related to exercise, mood, fear of falling, pain, and health status of older women who enrolled in either of two Baltimore Hip Studies (BHS), BHS-4 and BHS-5, and to test a self-efficacy-based model to explain exercise behavior after hip fracture. A total of 389 older women with hip fractures participated in these studies. The participants reported moderate confidence in their ability to exercise and a general belief in the benefits of exercise, high perceived health status, limited depressive symptoms, and some pain and fear of falling. Consistently across these two samples, age and mental status or depressive symptoms influenced outcome expectations, such that older women with more depressive symptoms or lower mental health status had weaker outcome expectations for exercise. Self-efficacy expectations consistently influenced exercise behavior across both samples. It was also consistent across both models that age, cognitive status, physical and mental health status, pain, fear, outcome expectations, and depressive symptoms did not directly influence exercise behavior.

Treatment fidelity in behavior change research: a case example.

BACKGROUND: Treatment fidelity refers to the methodological strategies used to monitor and enhance the reliability and validity of behavioral interventions. Assuring optimal treatment fidelity also may decrease the costs of a study and help the research team explain findings. APPROACH: The Behavioral Change Consortium developed a comprehensive model of treatment fidelity that incorporates 5 areas: (a) study design, (b) training providers, (c) delivery of treatment, (d) receipt of treatment, and (e) enactment of treatment skills. The definitions of these areas and a case example (Testing the Effectiveness of the Exercise Plus Program) are provided. RESULTS: There was evidence of treatment fidelity related to delivery based on careful monitoring of the study implementation. A comprehensive plan for training of the interventionists was provided, although evidence of treatment fidelity to training was not quantified. There were evidence based on observations of treatment sessions of delivery and receipt of the intervention and evidence of enactments based on evaluation of exercise calendars. DISCUSSION: The development and implementation of a treatment fidelity plan requires a careful conceptualization of what is relevant to treatment fidelity in any given study. Monitoring of treatment fidelity ideally requires direct or indirect observations of sessions, which can be built into the study design so that costs are minimal in terms of time and resources. Monitoring treatment fidelity allows research teams to truly test interventions and to develop and implement interventions that ultimately improve the overall health and well-being of individuals.