Time-of-Day Effects on Anaerobic Power and Concentration of Selected Hormones in Blind Men

Knowledge of the circadian rhythm of the blind person and diurnal changes in anaerobic power and hormones concentration can create the possibility of individualising physical training. The aim of the study was to examine the time-of-day effects on anaerobic performance and the concentration of selec...

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Main Authors:	Tomasz Pałka, Przemysław Pajor, Anna Katarzyna Tyka, Wanda Pilch, Agata Cebula, Aneta Teległów, Marek Strzała, Marcin Maciejczyk
Format:	Article
Language:	English
Published:	MDPI AG 2021-09-01
Series:	International Journal of Environmental Research and Public Health
Subjects:	hormone anaerobic power physical fitness blind men melatonin Wingate test
Online Access:	https://www.mdpi.com/1660-4601/18/17/9353

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spelling	doaj-22b00fc8436545b1ba073560a5fb391a2021-09-09T13:46:15ZengMDPI AGInternational Journal of Environmental Research and Public Health1661-78271660-46012021-09-01189353935310.3390/ijerph18179353Time-of-Day Effects on Anaerobic Power and Concentration of Selected Hormones in Blind MenTomasz Pałka0Przemysław Pajor1Anna Katarzyna Tyka2Wanda Pilch3Agata Cebula4Aneta Teległów5Marek Strzała6Marcin Maciejczyk7Department of Physiology and Biochemistry, Faculty of Physical Education and Sport, University of Physical Education, 31-571 Kraków, PolandDoctoral Studies, University of Physical Education, 31-571 Kraków, PolandDepartment of Recreation and Biological Regeneration, Faculty of Tourism and Leisure, University of Physical Education, 31-571 Kraków, PolandDepartment of Cosmetology, Faculty of Rehabilitation, University of Physical Education, 31-571 Kraków, PolandDepartment of Biological Regeneration and Posture Correction, Faculty of Physical Education and Sport, University of Physical Education, 31-571 Kraków, PolandDepartment of Clinical Rehabilitation, University of Physical Education, 31-571 Kraków, PolandDepartment of Water Sports, Faculty of Physical Education and Sport, University of Physical Education, 31-571 Kraków, PolandDepartment of Physiology and Biochemistry, Faculty of Physical Education and Sport, University of Physical Education, 31-571 Kraków, PolandKnowledge of the circadian rhythm of the blind person and diurnal changes in anaerobic power and hormones concentration can create the possibility of individualising physical training. The aim of the study was to examine the time-of-day effects on anaerobic performance and the concentration of selected hormones. The measurements were performed at two different times of the day (10:00 a.m., 10:00 p.m.) in blind men at the age of 20–25 years old. The experiment group was chosen by using repeated hormonal tests four times a day so that each selected patient had a sleep/wake cycle even of 24 h. Anaerobic peak power and total work were tested in an anaerobic sprint test, and the concentration of growth hormone, testosterone, cortisol, and melatonin was determined. In blind men, the hormonal response was not driven by the photoperiod as in the control group. In the blind group, at 10:00 p.m., anaerobic peak power and total work results were significantly higher than at 10:00 a.m. and negatively correlated with melatonin levels. No such correlation was found in the control group.https://www.mdpi.com/1660-4601/18/17/9353hormoneanaerobic powerphysical fitnessblind menmelatoninWingate test
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Tomasz Pałka Przemysław Pajor Anna Katarzyna Tyka Wanda Pilch Agata Cebula Aneta Teległów Marek Strzała Marcin Maciejczyk
spellingShingle	Tomasz Pałka Przemysław Pajor Anna Katarzyna Tyka Wanda Pilch Agata Cebula Aneta Teległów Marek Strzała Marcin Maciejczyk Time-of-Day Effects on Anaerobic Power and Concentration of Selected Hormones in Blind Men International Journal of Environmental Research and Public Health hormone anaerobic power physical fitness blind men melatonin Wingate test
author_facet	Tomasz Pałka Przemysław Pajor Anna Katarzyna Tyka Wanda Pilch Agata Cebula Aneta Teległów Marek Strzała Marcin Maciejczyk
author_sort	Tomasz Pałka
title	Time-of-Day Effects on Anaerobic Power and Concentration of Selected Hormones in Blind Men
title_short	Time-of-Day Effects on Anaerobic Power and Concentration of Selected Hormones in Blind Men
title_full	Time-of-Day Effects on Anaerobic Power and Concentration of Selected Hormones in Blind Men
title_fullStr	Time-of-Day Effects on Anaerobic Power and Concentration of Selected Hormones in Blind Men
title_full_unstemmed	Time-of-Day Effects on Anaerobic Power and Concentration of Selected Hormones in Blind Men
title_sort	time-of-day effects on anaerobic power and concentration of selected hormones in blind men
publisher	MDPI AG
series	International Journal of Environmental Research and Public Health
issn	1661-7827 1660-4601
publishDate	2021-09-01
description	Knowledge of the circadian rhythm of the blind person and diurnal changes in anaerobic power and hormones concentration can create the possibility of individualising physical training. The aim of the study was to examine the time-of-day effects on anaerobic performance and the concentration of selected hormones. The measurements were performed at two different times of the day (10:00 a.m., 10:00 p.m.) in blind men at the age of 20–25 years old. The experiment group was chosen by using repeated hormonal tests four times a day so that each selected patient had a sleep/wake cycle even of 24 h. Anaerobic peak power and total work were tested in an anaerobic sprint test, and the concentration of growth hormone, testosterone, cortisol, and melatonin was determined. In blind men, the hormonal response was not driven by the photoperiod as in the control group. In the blind group, at 10:00 p.m., anaerobic peak power and total work results were significantly higher than at 10:00 a.m. and negatively correlated with melatonin levels. No such correlation was found in the control group.
topic	hormone anaerobic power physical fitness blind men melatonin Wingate test
url	https://www.mdpi.com/1660-4601/18/17/9353
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Time-of-Day Effects on Anaerobic Power and Concentration of Selected Hormones in Blind Men

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