The effect of acute exercise on environmentally induced symptoms of dry-eye

Peart, Daniel, Walshe, Ian, Sweeney, Emma, James, Emily, Henderson, Thomas, O'Doherty, Alasdair and McDermott, Alison (2019) The effect of acute exercise on environmentally induced symptoms of dry-eye. Physiological Reports. ISSN 2051-817X (In Press)

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Abstract

The purpose of this study was to investigate the effects of acute exercise on environmentally induced symptoms of dry-eye. Twelve participants without dry-eye disease volunteered to complete three experimental visits in a randomised order; (1) control condition seated for 1-hour at a relative humidity (RH) of 40% (CONT), (2) dry condition seated for 1-hour at a RH of 20% (DRY), (3) exercise condition seated for 40-min followed by 20-min of cycling exercise at a RH of 20% (EXER). Tear volume, tear matrix metalloproteinase 9 (MMP-9), perception of dry-eye symptoms (frequency and severity), core temperature and ocular surface temperature (OST) were measured at the end of each exposure. The perception of dry-eye frequency and MMP-9 concentration were significantly higher in DRY compared to CONT (P < 0.012), with no differences in EXER compared to CONT. The results suggest that an acute bout of exercise may attenuate symptoms of environmentally induced dry-eye, and warrant further research.

Item Type: Article
Uncontrolled Keywords: Exercise, dry-eye, MMP-9, Schirmer, tears
Subjects: B500 Ophthalmics
C600 Sports Science
Department: Faculties > Health and Life Sciences > Applied Sciences
Faculties > Health and Life Sciences > Sport, Exercise and Rehabilitation
Depositing User: Paul Burns
Date Deposited: 23 Sep 2019 11:03
Last Modified: 11 Oct 2019 13:18
URI: http://nrl.northumbria.ac.uk/id/eprint/40807

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