The effect of ice-slushy consumption on plasma vasoactive intestinal peptide during prolonged exercise in the heat

被引：7
作者：
Burdon, Catriona A. [1 ]
Ruell, Patricia [1 ]
Johnson, Nathan [1 ]
Chapman, Philip [2 ]
O'Brien, Sinead [1 ]
O'Connor, Helen T. [1 ]
机构：
[1] Univ Sydney, Fac Hlth Sci, Exercise Hlth & Performance Res Grp, Sydney, NSW 2006, Australia
[2] Australian Catholic Univ, Sydney, NSW, Australia
来源：
JOURNAL OF THERMAL BIOLOGY | 2015年 / 47卷
关键词：
Beverage temperature; Endurance exercise; Thermoregulation; Cold drink; DRINK TEMPERATURE; THERMOREGULATORY RESPONSES; ENDURANCE CAPACITY; HYPERTHERMIA; POLYPEPTIDE; BODY; DEHYDRATION; PERFORMANCE; ENVIRONMENT; INGESTION;
D O I：
10.1016/j.jtherbio.2014.11.005
中图分类号：
Q [生物科学];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
The aim of this study was to determine the effect of exercise in the heat on thermoregulatory responses and plasma vasoactive intestinal peptide concentration (VIP) and whether it is modulated by ice-slushy consumption. Ten male participants cycled at 62% VO(2)max for 90 min in 32 degrees C and 40% relative humidity. A thermoneutral (37 degrees C) or ice-slushy (- 1 degrees C) sports drink was given at 3.5 ml kg(-1) body mass every 15 min during exercise. VIP and rectal temperature increased during exercise (mean +/- standard deviation: 4.6 +/- 4.4 pmol L-1, P=0.005; and 1.3 +/- 0.4 degrees C, P <0.001 respectively) and were moderately associated (r=0.35, P=0.008). While rectal temperature and VIP were not different between trials, ice-slushy significantly reduced heat storage (P=0.010) and skin temperature (time x trial interaction P=0.038). It appears that VIP does not provide the signal linking cold beverage ingestion and lower skin temperature in the heat. (C) 2014 Elsevier Ltd. All rights reserved.
引用
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页码：59 / 62
页数：4
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