Vitamin D status is associated with muscle strength and quality of life in patients with COPD: a seasonal prospective observation study

  title={Vitamin D status is associated with muscle strength and quality of life in patients with COPD: a seasonal prospective observation study},
  author={E. L. Carson and Laura Kirsty Pourshahidi and Sharon M. Madigan and Francina R. Baldrick and Martin Kelly and Eamon Laird and Martin Healy and J J Strain and Maria S. Mulhern},
  journal={International Journal of Chronic Obstructive Pulmonary Disease},
  pages={2613 - 2622}
Background Owing to hospitalization, reduced functional capacity and consequently, less sunlight exposure, suboptimal vitamin D status (25-hydroxyvitamin D [25(OH)D]⩽50 nmol/L) is prevalent among COPD patients. Objective This study aimed to investigate seasonal changes in vitamin D status and any associated changes in fat-free mass (FFM), muscle strength and quality of life (QoL) in COPD patients. Patients and methods COPD patients living in Northern Ireland (n=51) completed study visits at the… 

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