PMID: 8969726Dec 1, 1996Paper

Effects of anaerobic exercise on the immune system in eight- to seventeen-year-old trained and untrained boys

The Journal of Pediatrics
S R BoasT L Whiteside

Abstract

To determine the immunologic response to a brief bout of intense exercise in children and to determine the effects of prolonged activity and maturation level of the subjects on this response. We determined counts of leukocytes and their subsets, counts of lymphocytes and their subsets, and natural killer (NK) cell activity and cell number before and 3 and 60 minutes after a Wingate anaerobic test (WAnT) in 16 male swimmers (9 to 17 years of age) and 17 male nonswimmers (9 to 17 years of age). Subjects were also categorized by pubertal status based on Tanner staging and by level of physical activity. The Student t test and analysis of variance were used to determine statistical significance, with values expressed as mean +/- SEM. Three minutes after the WAnT, all children had increases in leukocytes (28%), lymphocytes (43%), and NK cells (395%) (p < 0.01). Swimmers had less baseline NK cell activity (54 +/- 6 cytolytic units) than nonswimmers (87 +/- 10 cytolytic units) after the WAnT (p < 0.01), although both groups showed an increase to similar levels of NK activity 3 minutes after exercise. Pubertal effects on these responses were not significant. Our results demonstrate transient leukocytosis, lymphocytosis, and increases in...Continue Reading

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Citations

Jun 3, 2005·Neuropsychology Review·Leonard A JasonCaroline King
Dec 28, 2000·Research Quarterly for Exercise and Sport·D C NiemanD S Morton
Mar 25, 2004·British Journal of Sports Medicine·D NemetD M Cooper
Mar 19, 2008·Applied Physiology, Nutrition, and Metabolism = Physiologie Appliquée, Nutrition Et Métabolisme·Brian W Timmons, Sandeep Raha
Nov 1, 2005·Expert Opinion on Drug Safety·Karolina M ZarebaSteven E Lipshultz
Mar 31, 2016·Applied Physiology, Nutrition, and Metabolism = Physiologie Appliquée, Nutrition Et Métabolisme·José P MorgadoFrancisco Alves
Oct 6, 1999·Pediatric Research·T P ScheettD M Cooper
Apr 8, 2004·Biological Research for Nursing·Duck-Hee KangYeonok Suh
May 5, 2006·Medicine and Science in Sports and Exercise·Brian W TimmonsOded Bar-Or
Oct 7, 2006·Journal of Pediatric Hematology/oncology·Aliya B LadhaPaul Grundy
Aug 12, 2003·Journal of Applied Physiology·Thomas J CieslakPanagiota Klentrou
Nov 17, 2007·Journal of Applied Physiology·Shlomit Radom-AizikDan M Cooper
Dec 29, 2000·Medicine and Science in Sports and Exercise·S R BoasM R O'Gorman
Jan 5, 2002·Annals of the New York Academy of Sciences·S E LipshultzT L Miller
Jan 10, 2018·European Journal of Applied Physiology·José P MorgadoFrancisco Alves

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