Exercise intensity effects on total sweat electrolyte losses and regional vs. whole-body sweat [Na+], [Cl-], and [K+]
Exercise intensity effects on total sweat electrolyte losses and regional vs. whole-body sweat [Na+], [Cl-], and [K+]
复制标题
DOI：
10.1007/s00421-018-4048-z
复制
发表时间：
2019-02-01
影响因子：
3
通讯作者：
Barnes, Kelly A.
中科院分区：
文献类型：
--
作者：
Baker, Lindsay B.;De Chavez, Peter John D.;Barnes, Kelly A.
目的量化两种相对运动强度下的总汗液电解质损失，并确定工作负荷对区域（REG）和全身（WB）汗液电解质浓度之间关系的影响。（7名男子，4名妇女; 71.58.4kg）完成了两项随机试验，（30 ℃，44%rh）在塑料隔离室中以45%（LOW）和65%（MOD）的VO2max持续90分钟，以使用冲洗技术测定WB汗液[Na +]和[Cl-]。使用吸收贴片在11个REG部位测量REG汗液[Na +]和[Cl-]。总汗液电解质流失量是WB汗液流失量（WBSL）和WB汗液电解质浓度的乘积。（0.86 +/-0.15 vs. 1.27 +/-0.24 L），WB汗液[Na +]（32.6 +/-14.3 vs. 52.7 +/-14.6 mmol/L），WB汗液[Cl-]（29.8 +/-13.6 vs. 52.5 +/-15.6 mmol/L），总汗液Na+损失（659 +/-340 vs. 1565 +/-590 mg）和总汗液氯离子损失（931 +/-494 vs. 2378 +/-853 mg）显著增加（p
PurposeTo quantify total sweat electrolyte losses at two relative exercise intensities and determine the effect of workload on the relation between regional (REG) and whole body (WB) sweat electrolyte concentrations.MethodsEleven recreational athletes (7 men, 4 women; 71.58.4kg) completed two randomized trials cycling (30 degrees C, 44% rh) for 90min at 45% (LOW) and 65% (MOD) of VO2max in a plastic isolation chamber to determine WB sweat [Na+] and [Cl-] using the washdown technique. REG sweat [Na+] and [Cl-] were measured at 11 REG sites using absorbent patches. Total sweat electrolyte losses were the product of WB sweat loss (WBSL) and WB sweat electrolyte concentrations.ResultsWBSL (0.86 +/- 0.15 vs. 1.27 +/- 0.24L), WB sweat [Na+] (32.6 +/- 14.3 vs. 52.7 +/- 14.6mmol/L), WB sweat [Cl-] (29.8 +/- 13.6 vs. 52.5 +/- 15.6mmol/L), total sweat Na+ loss (659 +/- 340 vs. 1565 +/- 590mg), and total sweat Cl- loss (931 +/- 494 vs. 2378 +/- 853mg) increased significantly (p