Lung function responses to cold water ingestion: A randomised controlled crossover trial

Turner, Louise A ORCID: 0000-0002-0153-7075 and Tiller, Nicholas B. (2023) Lung function responses to cold water ingestion: A randomised controlled crossover trial. Respiratory Physiology and Neurobiology, 318. Art 104161. doi:10.1016/j.resp.2023.104161

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This study tested the hypothesis that cold water ingestion would reduce lung function and thereby confound its measurement in a way that is mediated by both temperature and volume. In a randomised crossover trial, 10 healthy adults performed spirometry before and 5, 10, 15, and 30-minutes after consuming one-of-four drinks: 500 mL or 1000 mL refrigerated water (∼2 °C); identical water volumes at ambient temperature (∼18 °C). Ingesting 1000 mL cold water significantly reduced forced vital capacity (FVC) for at least 10 min (mean difference =0.28 L, p < 0.05, d=1.19) and forced expiratory volume in 1 s (FEV1) for at least 15 min (0.20–0.30 L, p < 0.05, d=1.01). Ingesting 500 mL cold water reduced FEV1 for 5 min (0.09 L, p < 0.05, d=1.05). Room-temperature water had no influence on lung function. To avoid confounding the measurement of lung function, we conclude that individuals should avoid drinking cold water, especially in large volumes, immediately prior to a given test.

Item Type: Article
Article Type: Article
Uncontrolled Keywords: Beverage; Cold drink; Lung function; Pulmonary function
Subjects: R Medicine > RC Internal medicine
Divisions: Schools and Research Institutes > School of Education and Science
Research Priority Areas: Health, Life Sciences, Sport and Wellbeing
Depositing User: Susan Turner
Date Deposited: 27 Sep 2023 09:18
Last Modified: 02 Nov 2023 14:36

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