Acute effects of high- and low-intensity exercise bouts on leukocyte counts
Background/Objective: It is widely accepted that physical exercise may bring about changes in the immune system. Even acute bouts of exercise can alter the number and function of leukocytes, but the degree of white blood cell trafficking depends on the intensity and duration of exercise. The aim of...
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doaj-2e452d315f75412a8d0ef214bbf0bf7e2020-11-24T21:44:15ZengElsevierJournal of Exercise Science & Fitness1728-869X2015-06-01131242810.1016/j.jesf.2014.11.003Acute effects of high- and low-intensity exercise bouts on leukocyte countsPedro Rogério Da Silva Neves0Thiago Ricardo Dos Santos Tenório1Tatiana Acioli Lins2Maria Tereza Cartaxo Muniz3Tânia Cristina Pithon-Curi4João Paulo Botero5Wagner Luiz Do Prado6Post Graduate Program of Physical Education, University of Pernambuco, Recife, BrazilPost Graduate Program of Physical Education, University of Pernambuco, Recife, BrazilPost Graduate Program of Physical Education, University of Pernambuco, Recife, BrazilDepartment of Biological Science, University of Pernambuco, BrazilInstitute of Physical Activity Sciences and Sports, University of Cruzeiro do Sul, BrazilDepartment of Human Movement Science, Federal University of São Paulo, São Paulo, BrazilPost Graduate Program of Physical Education, University of Pernambuco, Recife, BrazilBackground/Objective: It is widely accepted that physical exercise may bring about changes in the immune system. Even acute bouts of exercise can alter the number and function of leukocytes, but the degree of white blood cell trafficking depends on the intensity and duration of exercise. The aim of this study was to analyze the acute and short-term effects of exercise intensity on leukocyte counts and leukocyte subsets. Methods: Nine physically healthy, active young males (21.0 ± 1.9 years) underwent three experimental trials: high exercise intensity [80% peak oxygen consumption (VO2peak)], low exercise intensity (40% VO2peak), and the control condition (no exercise). Blood samples were collected prior to exercise, immediately after exercise, and 2 hours after exercise. Two-way analysis of variance for repeated measures was used to evaluate differences between the trials and the time-points, and to compare times within trials. Results: There was a greater increase in the leukocyte count after high-intensity exercise, compared to the control condition (p < 0.01) and low-intensity exercise (p < 0.01). This effect was still present 2 hours after passive recovery (p < 0.01). Conclusion: When the same participants were submitted to different exercise intensities, the acute and short-term effects of exercise on white blood cells were intensity-dependent immediately after exercise (i.e., lymphocytosis and monocytosis) and 2 hours after passive recovery (i.e., neutrophilia).http://www.sciencedirect.com/science/article/pii/S1728869X14000471Aerobic exerciseImmune systemInflammatory responseWhite blood cell |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Pedro Rogério Da Silva Neves Thiago Ricardo Dos Santos Tenório Tatiana Acioli Lins Maria Tereza Cartaxo Muniz Tânia Cristina Pithon-Curi João Paulo Botero Wagner Luiz Do Prado |
spellingShingle |
Pedro Rogério Da Silva Neves Thiago Ricardo Dos Santos Tenório Tatiana Acioli Lins Maria Tereza Cartaxo Muniz Tânia Cristina Pithon-Curi João Paulo Botero Wagner Luiz Do Prado Acute effects of high- and low-intensity exercise bouts on leukocyte counts Journal of Exercise Science & Fitness Aerobic exercise Immune system Inflammatory response White blood cell |
author_facet |
Pedro Rogério Da Silva Neves Thiago Ricardo Dos Santos Tenório Tatiana Acioli Lins Maria Tereza Cartaxo Muniz Tânia Cristina Pithon-Curi João Paulo Botero Wagner Luiz Do Prado |
author_sort |
Pedro Rogério Da Silva Neves |
title |
Acute effects of high- and low-intensity exercise bouts on leukocyte counts |
title_short |
Acute effects of high- and low-intensity exercise bouts on leukocyte counts |
title_full |
Acute effects of high- and low-intensity exercise bouts on leukocyte counts |
title_fullStr |
Acute effects of high- and low-intensity exercise bouts on leukocyte counts |
title_full_unstemmed |
Acute effects of high- and low-intensity exercise bouts on leukocyte counts |
title_sort |
acute effects of high- and low-intensity exercise bouts on leukocyte counts |
publisher |
Elsevier |
series |
Journal of Exercise Science & Fitness |
issn |
1728-869X |
publishDate |
2015-06-01 |
description |
Background/Objective: It is widely accepted that physical exercise may bring about changes in the immune system. Even acute bouts of exercise can alter the number and function of leukocytes, but the degree of white blood cell trafficking depends on the intensity and duration of exercise. The aim of this study was to analyze the acute and short-term effects of exercise intensity on leukocyte counts and leukocyte subsets.
Methods: Nine physically healthy, active young males (21.0 ± 1.9 years) underwent three experimental trials: high exercise intensity [80% peak oxygen consumption (VO2peak)], low exercise intensity (40% VO2peak), and the control condition (no exercise). Blood samples were collected prior to exercise, immediately after exercise, and 2 hours after exercise. Two-way analysis of variance for repeated measures was used to evaluate differences between the trials and the time-points, and to compare times within trials.
Results: There was a greater increase in the leukocyte count after high-intensity exercise, compared to the control condition (p < 0.01) and low-intensity exercise (p < 0.01). This effect was still present 2 hours after passive recovery (p < 0.01).
Conclusion: When the same participants were submitted to different exercise intensities, the acute and short-term effects of exercise on white blood cells were intensity-dependent immediately after exercise (i.e., lymphocytosis and monocytosis) and 2 hours after passive recovery (i.e., neutrophilia). |
topic |
Aerobic exercise Immune system Inflammatory response White blood cell |
url |
http://www.sciencedirect.com/science/article/pii/S1728869X14000471 |
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