Physical activity as a mediator in the relationship between health locus of control and health-related quality of life in multiple sclerosis patients with different disease duration
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Abstract
Background
The importance of undertaking physical activity for functioning of patients with multiple sclerosis (MS) has been repeatedly highlighted. However, the research on the role of physical activity in shaping the quality of life of patients with different disease duration is scarce.
Objective
The aim of this study was to identify the mediating role of physical activity in the relationship between health locus of control (HLoC) and health-related quality of life in MS patients with varying disease duration.
Methods
The study included 339 patients with MS from rehabilitation centers. The Multiple Sclerosis Impact Scale (MSIS-29) was used to measure health-related quality of life, physical activity was assessed by the Godin Leisure Time Exercise Questionnaire (GLTEQ) and the Health Locus of Control Questionnaire was used to measure HLoC.
Results
Physical activity has been shown to be a mediator in the relationship between intrinsic HLoC and health-related quality of life particularly in patients with longer disease duration. Intrinsic HLoC was positively associated with engaging in physical activity, which in turn was positively associated with the physical component of quality of life in patients with longer (indirect effect: β = −0.077, p < 0.05) and moderate (β = −0.040, p < 0.05) duration of illness.
Conclusion
The results highlight the importance of psychological resources for undertaking quality-of-life-related physical activity by MS patients with long disease duration. Particularly important here is the internal HLoC, which promotes physical activity that increases the chance of a high quality of life.
期刊介绍：
Disability and Health Journal is a scientific, scholarly, and multidisciplinary journal for reporting original contributions that advance knowledge in disability and health. Topics may be related to global health, quality of life, and specific health conditions as they relate to disability. Such contributions include:
• Reports of empirical research on the characteristics of persons with disabilities, environment, health outcomes, and determinants of health
• Reports of empirical research on the Systematic or other evidence-based reviews and tightly conceived theoretical interpretations of research literature
• Reports of empirical research on the Evaluative research on new interventions, technologies, and programs
• Reports of empirical research on the Reports on issues or policies affecting the health and/or quality of life for persons with disabilities, using a scientific base.
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