ArticlePhysical therapy research2025
Associations of Changes in Skeletal Muscle Mass on Computed Tomography with Improvements of Muscle Strength and Physical Activity after Sleeve Gastrectomy: A Pilot Study.
Article in Physical therapy research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Objective: Sleeve gastrectomy (SG) effectively reduces food intake and enhances health and longevity, although weight loss often involves reductions in body fat and skeletal muscle. Hence, we examined how changes in skeletal muscle density relate to muscle strength and physical activity before and after SG. Methods: This pilot observational study included 173 patients (mean age: 46 ± 11 years) who attended the hospital before and 1 year after undergoing SG between December 2018 and July 2022. Muscle cross-sectional area (cm Results: Although VFA, SFA, PMI, and absolute muscle strength decreased significantly after SG compared to those before SG (p <0.001), skeletal muscle density, relative muscle strength, and total physical activity increased significantly after SG, with a significant reduction in sitting time (p <0.001). There were significant positive correlations between changes in skeletal muscle density and changes in relative muscle strength and total physical activity. Conclusions: Improving skeletal muscle density with SG may be associated with increased relative muscle strength and improved physical activity.
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