Long-term swimming training modifies acute immune cell response to a high-intensity session

European Journal of Applied Physiology
José P MorgadoFrancisco Alves

Abstract

Long-term training influence on athletes' immune cell response to acute exercise has been poorly studied, despite the complexity of both chronic and acute adaptations induced by training. The purpose of the study is to study the influence of a 4-month swimming training cycle on the immune cell response to a high-intensity training session, during 24 h of recovery, considering sex, maturity, and age group. Forty-three swimmers (16 females, 14.4 ± 1.1 years; 27 males, 16.2 ± 2.0) performed a standardized high-intensity session, after the main competition of the first (M1), and second (M2) macrocycles. Blood samples were collected before (Pre), immediately after (Post), 2 h after (Post2h) and 24 h after (Post24h) exercise. Haemogram and lymphocytes subsets were assessed by an automatic cell counter and by flow cytometry, respectively. Subjects were grouped according to sex, competitive age groups, or pubertal Tanner stages. Results express the percentage of relative differences from Pre to Post, Post2h and Post24h. Upper respiratory symptoms (URS) and training load were quantified. At M2, we observed smaller increases of leukocytes (M1: 14.0 ± 36.3/M2: 2.33 ± 23.0%) and neutrophils (M1: 57.1 ± 71.6/M2: 38.9 ± 49.9%) at Post; and l...Continue Reading

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Citations

Feb 15, 2019·Pediatric Exercise Science·Alon EliakimAlex V Rowlands
Nov 28, 2019·Journal of Applied Physiology·Bailey TheallGuillaume Spielmann
Aug 17, 2018·Journal of Strength and Conditioning Research·Rodrigo ZaccaRicardo J Fernandes
Apr 5, 2020·The Cochrane Database of Systematic Reviews·Antonio Jose GrandeAnna M Scott
Feb 23, 2020·Medicine and Science in Sports and Exercise·Pengfei HouMantian Mi
Jan 15, 2019·Journal of Strength and Conditioning Research·Rodrigo ZaccaRicardo J Fernandes
Jul 10, 2020·International Journal of Environmental Research and Public Health·Joana F ReisCristina P Monteiro
Aug 28, 2020·Biology·Daniel SouzaPaulo Gentil

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Methods Mentioned

BETA
flow cytometry

Software Mentioned

SPSS Statistics
nparLD
R

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