既往中暑患者的耐热性差。

Heat intolerance in former heatstroke patients.

作者信息

Shapiro Y, Magazanik A, Udassin R, Ben-Baruch G, Shvartz E, Shoenfeld Y

出版信息

Ann Intern Med. 1979 Jun;90(6):913-6. doi: 10.7326/0003-4819-90-6-913.

Abstract

Nine young men who had suffered from heatstroke on previous occasions (heat-intolerant subjects) and 10 young volunteers (control subjects) were examined to determine their physiologic responses to exercise in temperate (23 degrees C) and hot environments (40 degrees C). The tests included an orthostatic test, work loads of 40 W and 80 W, and oxygen consumption (Vo2) determination. Although all the control subjects completed the exercise under severe heat load (3 h), none of the heat-intolerant subjects succeeded in completing this test due to high rectal temperatures and high heart rates. Sweat rates were similar in both groups, with Vo2 slightly higher in the control subjects. Orthostatic responses were similar in each group. The results suggest that inefficient thermoregulation, possibly due to decreased heat conductance from core to periphery, contributes to heat intolerance in former heatstroke patients.

摘要

对9名曾患过热射病的年轻男性（热不耐受受试者）和10名年轻志愿者（对照受试者）进行了检查，以确定他们在温带（23摄氏度）和炎热环境（40摄氏度）中运动时的生理反应。测试包括直立试验、40瓦和80瓦的工作负荷以及耗氧量（Vo2）测定。尽管所有对照受试者都在重度热负荷（3小时）下完成了运动，但由于直肠温度高和心率快，没有一名热不耐受受试者成功完成该测试。两组的出汗率相似，对照受试者的Vo2略高。每组的直立反应相似。结果表明，体温调节效率低下，可能是由于从核心到外周的热传导降低，导致既往热射病患者出现热不耐受。