Abstract
PURPOSE: To investigate the association between serum vitamin D levels and dysmobility syndrome (DMS) in community-dwelling older adults.METHODS: This cross-sectional study included 390 older adults (80.7% female) with a mean (±SD) age of 74.8±5.5 years. Based on high body fat level, osteoporosis, low muscle mass, slow gait speed, low grip strength, and fall(s), participants were classified as robust, pre-DMS, or DMS. Based on serum vitamin D levels, subjects were classified as high 33%, middle 33%, and lower 33%, and/or ≥20 ng/mL and <20 ng/mL, respectively. Logistic regression analyses were performed to determine odds ratios (OR) for serum vitamin D levels in DMS.RESULTS: There were linear increases in DMS variables such as high body fat (<i>p</i> = .040), slow gait speed (<i>p</i> = .048), fall(s) (<i>p</i> = .005), and prevalence of DMS (<i>p</i> = .001) across decremental serum vitamin D levels. Compared with the high vitamin D group (as reference), the low 33% group exhibited a higher OR for DMS (OR 2.776, <i>p</i> = .02). Similarly, compared with the vitamin D ≥20 ng/mL group (as reference), the <20 ng/mL group had a higher OR for DMS (OR 2.486, <i>p</i> = .002).CONCLUSIONS: Findings of this study suggest higher serum vitamin D levels through promoting outdoor physical activity and a healthy diet are key components protecting older adults against DMS.
Funder
Changwon National University
Publisher
Korean Society of Exercise Physiology
Subject
Physiology (medical),Public Health, Environmental and Occupational Health,Physical Therapy, Sports Therapy and Rehabilitation