The effects of acute moderate exercise on leucocyte and lymphocyte subpopulations
Deutscher übersetzter Titel: | Auswirkungen einmaliger maessigintensiver koerperlicher Belastung auf die Subpopulationen der Leuko- und Lymphozyten |
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Autor: | Nieman, David C.; Nehlsen-Cannarella, Sandra L.; Donohue, Karen M.; Chritton, Douglas B.W.; Haddock, Bryan L.; Stout, Ron W.; Lee, Jerry W. |
Erschienen in: | Medicine and science in sports and exercise |
Veröffentlicht: | 23 (1991), 5, S. 578-585, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Gedruckte Ressource |
Sprache: | Englisch |
ISSN: | 0195-9131, 1530-0315 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU199109050661 |
Quelle: | BISp |
Abstract
The extent and duration of changes in circulating leukocyte and lymphocyte subpopulations, cortisol, and catecholamines were examined in 12 women who walked 45 min at 60 VO2max in a laboratory setting. A two-factor, 2x6 design with repeated measures on both factors was utilized. The first factor was condition (exercise and rest), and the second factor was time (six points of measurement over a 24-h period), with treatment order counterbalanced. The 45-min walk, in comparison with rest in a seated position, was associated with a significant but moderate leukocytosis and lymphocytosis immediately following the walk. The leukocytosis was still evident after 3 h of recovery and was primarily due to a neutrophilia. The change in lymphocyte count, relative to baseline levels and the control condition, lasted less than 1.5 h, with an increase in the natural killer (CD16 and/or CD56) and cytotoxic T cell component (CD3 and CD16 and/or CD56) (NKCT) representing approximately two-thirds of the lymphocytosis and T cells (CD5) the other third. A significant decrease in the CD4:CD8 ratio was seen, with cytotoxic/suppressor (CD8) cells increasing and helper/inducer (CD4) cells demonstrating little change in comparison with baseline. This seems to have been due to a subpopulation of CD8 (low density antigen) cells, probably natural killer cells. The 45-min walk had no effect on plasma cortisol and epinephrine levels relative to the rest condition but was associated with a moderate increase in norepinephrine. Verf.-Referat (gekuerzt)