Plasma [Na+], [Ca2+], and volume shifts and thermoregulation during exercise in man.
Plasma [Na+], [Ca2+], and volume shifts and thermoregulation during exercise in man.
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人体运动期间的血浆 [Na ]、[Ca2 ] 以及容量变化和体温调节。
DOI：
10.1152/jappl.1977.43.6.1026
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发表时间：
1977
期刊：
影响因子：
--
通讯作者：
P. J. Brock
中科院分区：
文献类型：
--
作者：
J. Greenleaf;V. Convertino;R. Stremel;E. Bernauer;W. C. Adams;S. Vignau;P. J. Brock
对6名训练有素的男性跑步者(19-23岁)进行了分级运动实验，实验方案包括30min的静息控制期，60min的休息或工作负荷运动，其最大摄氧量分别相当于最大摄氧量的6%(静息)、23%、43%和62%，然后恢复30min。测量和讨论的参数包括直肠温度(T-Re)、不同部位的皮肤温度、最大摄氧量、血浆容量(PV)以及不同的血浆电解质和蛋白质浓度。其目的是确定在逐渐增加的工作负荷下T-re的增加是否与血浆钠离子和钙离子浓度有关，以及评估PV漂移对电解质和渗透浓度的影响。结果表明，PV的改变(丢失)解释了血浆成分浓度的增加，从而导致了T-Re的显著相关。
Graded-exercise experiments are conducted on six trained male runners (19-23 yr) subjected to ergometer exercise in a program consisting of 30-min resting control period, 60 min of rest or exercise at work loads that resulted in a maximal oxygen uptake equivalent to 6% (resting), 23%, 43%, and 62% of maximal oxygen uptake, followed by 30 min of recovery. The parameters measured and discussed are rectal temperature (T-re), skin temperatures at different spots, maximal oxygen uptake, plasma volume (PV), and various plasma electrolyte and protein concentrations. The objectives are to determine whether the increased T-re during progressively greater work loads are related to plasma sodium ion and calcium ion concentrations, as well as to evaluate the influence of PV shifts on the electrolyte and osmotic concentrations. The results suggest that the shift (loss) in PV accounts for the increases in the plasma constituent concentrations that result in significant correlations with T-re.