Pre-cooling with ice slurry ingestion leads to similar run times to exhaustion in the heat as cold water immersion

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Deutscher übersetzter Titel:Vorkühlung im Eiswasserbehälter führt zu änlichen Laufzeiten bei großer Hitze wie das Eintauchen in kaltem Wasser
Autor:Siegel, Rodney; Maté, Joseph; Watson, Greig; Nosaka, Kazunori; Laursen, Paul B.
Erschienen in:Journal of sports sciences
Veröffentlicht:30 (2012), 2, S. 155-165, Lit.
Format: Literatur (SPOLIT)
Publikationstyp: Zeitschriftenartikel
Medienart: Gedruckte Ressource
Sprache:Englisch
ISSN:0264-0414, 1466-447X
DOI:10.1080/02640414.2011.625968
Schlagworte:
Eis
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Erfassungsnummer:PU201401000063
Quelle:BISp

Abstract

The purpose of this study was to compare the effects of pre-exercise ice slurry ingestion and cold water immersion on submaximal running time in the heat. On three separate occasions, eight males ran to exhaustion at their first ventilatory
threshold in the heat (34.0+0.18C, 52+3% relative humidity) following one of three 30 min pre-exercise manoeuvres: (1) ice slurry ingestion; (2) cold water immersion; or (3) warm fluid ingestion (control). Running time was longer following cold
water immersion (56.8+5.6 min; P¼0.008) and ice slurry ingestion (52.7+8.4 min; P¼0.005) compared with control (46.7+7.2 min), but not significantly different between cold water immersion and ice slurry ingestion (P¼0.335). During
exercise, rectal temperature was lower with cold water immersion from 15 and 20 min into exercise compared with control and ice slurry ingestion, respectively, and remained lower until 40 min (P¼0.001). At exhaustion rectal temperature was
significantly higher following ice slurry ingestion (39.76+0.368C) compared with control (39.48+0.368C; P¼0.042) and tended to be higher than cold water immersion (39.48+0.348C; P¼0.065). As run times were similar between conditions,
ice slurry ingestion may be a comparable form of pre-cooling to cold water immersion. Verf.-Referat