Immune changes: 2 h of continuous vs. intermittent cycling
Deutscher übersetzter Titel: | Immunveränderungen: 2 Stunden kontinuierlicher versus intermittierender Radfahrbelastung |
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Autor: | Nieman, D.; Henson, D.; Gojanovich, G.; Davis, J.M.; Dumke, C.; Utter, A.; Murphy, A.; Pearce, S.; McAnulty, S.; McAnulty, L. |
Erschienen in: | International journal of sports medicine |
Veröffentlicht: | 28 (2007), 7, S. 625-630, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Gedruckte Ressource Elektronische Ressource (online) |
Sprache: | Englisch |
ISSN: | 0172-4622, 1439-3964 |
DOI: | 10.1055/s-2007-964856 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU200709002548 |
Quelle: | BISp |
Abstract
Immune changes following 2 h of intensive cycling with or without rest intervals were measured in trained cyclists (n=12) who functioned as their own controls during two test sessions that were separated by two weeks. Subjects cycled for 2.0 h at ∼64% Wattsmax continuously (C) or with 3-min rest intervals (R) interspersed every 10 min (2.6 h total time), with the order of the sessions randomized. Blood samples were collected 30-min pre-exercise, and immediately and 1-h postexercise, and assayed for blood leukocyte subset counts, plasma IL-6, IL-10, IL-1ra, IL-8, PHA-induced lymphocyte proliferation, and natural killer cell activity (NKCA). Significant time effects were measured for all immune measures, but no significant differences in the pattern of change were found between C and R exercise trials. In conclusion, immune changes induced by 2 h of intense and prolonged exercise paralleled those measured when athletes rested 3 min every 10 min of exercise. Verf.-Referat