Variations hematologiques a lexercice physique sous maximal de longue duree

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Deutscher übersetzter Titel:Haematologische Schwankungen bei submaximaler koerperlicher Belastung von langer Dauer
Autor:Vogelaere, P.; Brasseur, M.; Leclercq, R.; Quirion, A.
Erschienen in:Canadian journal of sport sciences
Veröffentlicht:13 (1988), 1, S. 43-49, Lit.
Format: Literatur (SPOLIT)
Publikationstyp: Zeitschriftenartikel
Medienart: Gedruckte Ressource
Sprache:Französisch
ISSN:0833-1235
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Erfassungsnummer:PU198807007967
Quelle:BISp

Abstract

The purpose of this study was to determine the effects of cold stress on routine hematologic parameters when subjects are submitted on long-lasting exercise. Eight male subjects, aged 2.7 +- 1.3 years with a peak oxygen consumption of 54.3 +- 5.2 mL/kg/min performed, respectively at 20 degrees C and 0 degrees C, a two-hour submaximal cyclergometry at an intensity of 40 of that performed during a previous exhaustive test. A 21-gauge catheter was inserted into an ante cubital vein for collection of the blood samples. Platelets and WBC count was significantly (p<0.05) increased during exercise in both 20 degrees C and 0 degrees C environmental temperatures. A slight but not statistically significant increase of RBC, Hb and Hct and a plasma concentration during cold exposure was observed. Indices are unchanged in both experiments. The findings of this study suggest that physical exercise is a major factor inducing hypervolemia and that low thermal environment does not appear to be an effective factor influencing hematologic variables during exercise. Verf.-Referat