Vitamin D and omega-3 polyunsaturated fatty acid supplementation in athletes with exercise-induced bronchoconstriction: a pilot study

Price, Ollie, Hull, James, Howatson, Glyn, Robson-Ansley, Paula and Ansley, Les (2015) Vitamin D and omega-3 polyunsaturated fatty acid supplementation in athletes with exercise-induced bronchoconstriction: a pilot study. Expert Review of Respiratory Medicine, 9 (3). pp. 369-378. ISSN 1747-6348

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Official URL: http://dx.doi.org/10.1586/17476348.2015.1036032

Abstract

Objective: The aim of this pilot study was to determine the combined effect of vitamin D and omega-3 polyunsaturated fatty acid (PUFA) supplementation on airway function and inflammation in recreational athletes with exercise-induced bronchoconstriction (EIB).

Methods: Ten recreational athletes with EIB participated in a single-blind, placebo-controlled trial over six consecutive weeks. All subjects attended the laboratory on three occasions. Each visit was separated by a period of 3 weeks: visit 1 (usual diet), visit 2 (placebo) and visit 3 (SMARTFISH® NutriFriend 2000; 30 µg vitamin D3–3000 mg eicosapentaenoic acid, 3000 mg docosahexaenoic acid) consumed once daily for a period of 3 weeks. Venous blood was collected at the beginning of each trial to determine vitamin D status. Spirometry was performed pre- and post-eucapnic voluntary hyperpnoea (EVH).

Results: The Maximum fall in FEV1 (ΔFEV1max) post-EVH was not different between visits (usual diet: −15.9 ± 3.6%, placebo: −16.1 ± 6.1%, vitamin D + omega-3 PUFA: −17.8 ± 7.2%). Serum vitamin D remained unchanged between visits.

Conclusion: Vitamin D and omega-3 PUFA supplementation does not attenuate the reduction in lung function post-EVH. This finding should be viewed as preliminary until the results of randomised controlled trials are made available.

Item Type: Article
Uncontrolled Keywords: airway dysfunction, exercise-induced bronchoconstriction, inflammation, omega-3 polyunsaturated fatty acids, vitamin D
Subjects: C600 Sports Science
Department: Faculties > Health and Life Sciences > School of Life Sciences > Sport, Exercise and Rehabilitation
Depositing User: Becky Skoyles
Date Deposited: 15 Jun 2015 08:36
Last Modified: 17 Mar 2016 11:59
URI: http://nrl.northumbria.ac.uk/id/eprint/22890

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