Effect of repeated endurance exercise on intraocular pressure in healthy subjects: a prospective pilot study based on a 500-km swim relay

Michał Nowak; Robert Gajda; Wojciech Drygas; Ewa Rębowska; Elżbieta Dziankowska-Zaborszczyk; Magdalena Kwaśniewska

doi:10.5114/ko.2020.96557

POLSKI

eISSN: 2719-3209
ISSN: 0023-2157

Klinika Oczna / Acta Ophthalmologica Polonica

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2/2020
vol. 122

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abstract:

Original article

Effect of repeated endurance exercise on intraocular pressure in healthy subjects: a prospective pilot study based on a 500-km swim relay

Michał Nowak

¹

,

Robert Gajda

²

,

Wojciech Drygas

^{1, 3}

,

Ewa Rębowska

¹

,

Elżbieta Dziankowska-Zaborszczyk

⁴

,

Magdalena Kwaśniewska

¹

Department of Preventive Medicine, Medical University of Lodz, Lodz, Poland
Center for Sports Cardiology at the Gajda-Med Medical Center, Pułtusk, Poland
Department of Epidemiology, Cardiovascular Disease Prevention and Health Promotion, The Cardinal Stefan Wyszyński National Institute of Cardiology, Warsaw, Poland
Department of Epidemiology and Biostatistics, Medical University of Lodz, Lodz, Poland

KLINIKA OCZNA 2020, 122, 2: 54–59

DOI: https://doi.org/10.5114/ko.2020.96557

Online publish date: 2020/06/28

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AMA

Nowak M, Gajda R, Drygas W, Rębowska E, Dziankowska-Zaborszczyk E, Kwaśniewska M. Effect of repeated endurance exercise on intraocular pressure in healthy subjects: a prospective pilot study based on a 500-km swim relay. Klinika Oczna / Acta Ophthalmologica Polonica. 2020;122(2):54-59. doi:10.5114/ko.2020.96557.

APA

Nowak, M., Gajda, R., Drygas, W., Rębowska, E., Dziankowska-Zaborszczyk, E.,  & Kwaśniewska, M. (2020). Effect of repeated endurance exercise on intraocular pressure in healthy subjects: a prospective pilot study based on a 500-km swim relay. Klinika Oczna / Acta Ophthalmologica Polonica, 122(2), 54-59. https://doi.org/10.5114/ko.2020.96557

Chicago

Nowak, Michał, Robert Gajda, Wojciech Drygas, Ewa Rębowska, Elżbieta Dziankowska-Zaborszczyk,  and Magdalena Kwaśniewska. 2020. "Effect of repeated endurance exercise on intraocular pressure in healthy subjects: a prospective pilot study based on a 500-km swim relay". Klinika Oczna / Acta Ophthalmologica Polonica 122 (2): 54-59. doi:10.5114/ko.2020.96557.

Harvard

Nowak, M., Gajda, R., Drygas, W., Rębowska, E., Dziankowska-Zaborszczyk, E.,  and Kwaśniewska, M. (2020). Effect of repeated endurance exercise on intraocular pressure in healthy subjects: a prospective pilot study based on a 500-km swim relay. Klinika Oczna / Acta Ophthalmologica Polonica, 122(2), pp.54-59. https://doi.org/10.5114/ko.2020.96557

MLA

Nowak, Michał et al. "Effect of repeated endurance exercise on intraocular pressure in healthy subjects: a prospective pilot study based on a 500-km swim relay." Klinika Oczna / Acta Ophthalmologica Polonica, vol. 122, no. 2, 2020, pp. 54-59. doi:10.5114/ko.2020.96557.

Vancouver

Nowak M, Gajda R, Drygas W, Rębowska E, Dziankowska-Zaborszczyk E, Kwaśniewska M. Effect of repeated endurance exercise on intraocular pressure in healthy subjects: a prospective pilot study based on a 500-km swim relay. Klinika Oczna / Acta Ophthalmologica Polonica. 2020;122(2):54-59. doi:10.5114/ko.2020.96557.

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Aim of the study
To investigate exercise-related changes in the intraocular pressure (IOP) in healthy participants of a 500-km swim relay.

Material and methods
A group of 12 well-trained amateur swimmers aged 13-67 years participated in a 500-km swim relay in the Warta River, Poland. Each participant underwent detailed clinical examinations, including IOP and central corneal thickness measurements, 2-3 weeks before the relay (baseline) and at peak effort (10 min after the last shift). A baseline maximal treadmill exercise test was also conducted for measurement of the maximal oxygen consumption (VO₂) and metabolic equivalent of task (MET) values.

Results
None of the athletes (12 eyes) exhibited significant changes in IOP at peak effort (mean change from 14.3 to 15.4 mmHg, p > 0.05). Six male subjects exhibited an exercise-induced mean increase in IOP at peak effort, from 15.6 to 18.5 mmHg (6 eyes, p < 0.05). In six female subjects, the peak effort was not associated with significant IOP changes; IOP mean declined slightly from 13.0 to 12.3 mmHg (6 eyes, p > 0.05). IOP parameters, including the pressure at rest, pressure at peak effort, and pressure change, showed no significant correlations with cardiorespiratory aerobic fitness determined by VO₂ and MET.

Conclusions
This pilot study did not reveal changes in IOP among well-trained amateur athletes in response to prolonged vigorous swimming. These results, as well as sex-specific differences, in IOP changes at peak effort due to the small sample size must be confirmed by examinations in a larger group.

keywords:

Effect of repeated endurance exercise on intraocular pressure in healthy subjects: a prospective pilot study based on a 500-km swim relay

Michał Nowak 1 , Robert Gajda 2 , Wojciech Drygas 1, 3 , Ewa Rębowska 1 , Elżbieta Dziankowska-Zaborszczyk 4 , Magdalena Kwaśniewska 1

endurance swim, exhaustive exercise, intraocular pressure, glaucoma, men, women

Michał Nowak

¹

,

Robert Gajda

²

,

Wojciech Drygas

^{1, 3}

,

Ewa Rębowska

¹

,

Elżbieta Dziankowska-Zaborszczyk

⁴

,

Magdalena Kwaśniewska

¹