Vitamin D supplementation during rehabilitation in COPD: a secondary analysis of a randomized trial

被引:81
作者
Hornikx, Miek [1 ,3 ]
Van Remoortel, Hans [1 ,3 ]
Lehouck, An [1 ]
Mathieu, Chantal [2 ]
Maes, Karen [1 ]
Gayan-Ramirez, Ghislaine [1 ]
Decramer, Marc [1 ]
Troosters, Thierry [1 ,3 ]
Janssens, Wim [1 ]
机构
[1] KULeuven, Univ Hosp Gasthuisberg, Lab Pneumol, Resp Div & Rehabil, B-3000 Louvain, Belgium
[2] KULeuven, Univ Hosp, Div Endocrinol, B-3000 Louvain, Belgium
[3] KULeuven, Fac Kinesiol & Rehabil Sci, Dept Rehabil Sci, B-3000 Louvain, Belgium
关键词
Chronic obstructive pulmonary disease; Exercise capacity; Skeletal muscle; Systemic consequences; Vitamin D; OBSTRUCTIVE PULMONARY-DISEASE; OLDER MEN; PHYSICAL PERFORMANCE; MUSCLE WEAKNESS; D DEFICIENCY; EXERCISE; STRENGTH; ATROPHY; FALLS;
D O I
10.1186/1465-9921-13-84
中图分类号
R56 [呼吸系及胸部疾病];
学科分类号
摘要
Rationale: Pulmonary rehabilitation is an important treatment for patients with Chronic Obstructive Pulmonary Disease, who are often vitamin D deficient. As vitamin D status is linked to skeletal muscle function, we aimed to explore if high dose vitamin D supplementation can improve the outcomes of rehabilitation in Chronic Obstructive Pulmonary Disease. Material and methods: This study is a post-hoc subgroup analysis of a larger randomized trial comparing a monthly dose of 100.000 IU of vitamin D with placebo to reduce exacerbations. 50 Subjects who followed a rehabilitation program during the trial are included in this analysis. We report changes from baseline in muscle strength and exercise performance between both study arms after 3 months of rehabilitation. Results: Vitamin D intervention resulted in significantly higher median vitamin D levels compared to placebo (51 [44-62] ng/ml vs 15 [13-30] ng/ml; p < 0.001). Patients receiving vitamin D had significantly larger improvements in inspiratory muscle strength (-11 +/- 12 cmH2O vs 0 +/- 14 cmH2O; p = 0.004) and maximal oxygen uptake (110 +/- 211 ml/min vs -20 +/- 187 ml/min; p = 0.029). Improvements in quadriceps strength (15 +/- 16 Nm) or six minutes walking distance (40 +/- 55 meter) were not significantly different from the effects in the placebo group (7 +/- 19 Nm and 11 +/- 74 meter; p > 0.050). Conclusion: High dose vitamin D supplementation during rehabilitation may have mild additional benefits to training.
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页数:9
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