Effects of electrolyzed hydrogen water ingestion during endurance exercise in a heated environment on body fluid balance and exercise performance.
Effects of electrolyzed hydrogen water ingestion during endurance exercise in a heated environment on body fluid balance and exercise performance.
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DOI：
10.1080/23328940.2020.1742056
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发表时间：
2020-04-17
期刊：
影响因子：
--
通讯作者：
Goto K
中科院分区：
文献类型：
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作者：
Ito H;Kabayma S;Goto K
在阴极产生电解氢水(EHW)。它含有许多氢分子，具有高碱性。耐力运动期间摄入 EHW 的生理影响尚不清楚。本研究的目的是确定在高温环境下进行耐力运动时摄入 EHW 对体液平衡和运动表现的影响。 12 名铁人三项运动员（20.0 ± 1.3 岁、171 ± 6 cm、60.6 ± 3.9 kg、V̇O2max 67.1 ± 3.8 mL/kg/min）以 65% V̇O2max 消耗纯净水（CON 试验）或 EHW（EHW 试验）进行踩踏运动 60 分钟，然后进行增量踩踏测试。在 60 分钟的运动过程中确定血液参数、组织温度和呼吸变量。还确定了增量踩踏测试期间的力竭时间 (TTE)。运动后体重降低了 1.1 ± 0.4 公斤，试验之间没有显着差异。血浆容量和血清渗透压以及血液钠和钾浓度随着运动而显着变化，但试验之间没有观察到显着差异。两项试验之间的 pH 值、血乳酸和碳酸氢盐浓度以及皮肤和肌肉温度的变化没有显着差异。 EHW 试验中运动期间的能量消耗（13.2 ± 0.5 kcal/min）显着低于 CON 试验（13.7 ± 0.4 kcal/min）（P = 0.04）。试验之间的 TTE 没有显着差异。总之，在高温环境下进行耐力运动时摄入 EHW 会降低能量消耗，但不会影响体液平衡或运动表现。缩写：CON：对照试验； CV：变异系数； EHW：电解氢水； HR：心率； RPE：感知用力等级； SE：标准误； TP：总蛋白； TTE：精疲力尽的时间
Electrolyzed hydrogen water (EHW) is generated at a cathode. It contains many hydrogen molecules with high alkaline properties. The physiological effects of ingesting EHW during endurance exercise are unclear. The purpose of this study was to determine the effects of ingesting EHW during endurance exercise in a heated environment on body fluid balance and exercise performance. Twelve triathletes (20.0 ± 1.3 years, 171 ± 6 cm, 60.6 ± 3.9 kg, V̇O2max 67.1 ± 3.8 mL/kg/min) performed pedaling exercise for 60 min at 65% of V̇O2max consuming either purified water (CON trial) or EHW (EHW trial) and then conducted an incremental pedaling test. Blood parameters, tissue temperature, and respiratory variables were determined during 60 min of exercise. The time to exhaustion (TTE) during the incremental pedaling test was also determined. Body weights were 1.1 ± 0.4 kg lower after exercise, with no significant differences between trials. Plasma volume and serum osmolality and blood sodium and potassium concentrations significantly changed with exercise, but no significant differences were observed between trials. The pH, blood lactate and bicarbonate concentrations, and changes in skin and muscle temperature did not significantly differ between the two trials. Energy expenditure during exercise was significantly (P = 0.04) lower in the EHW trial (13.2 ± 0.5 kcal/min) than in the CON trial (13.7 ± 0.4 kcal/min). TTE did not significantly differ between the trials. In conclusion, EHW ingestion during endurance exercise in a heated environment decreased energy expenditure but did not affect body fluid balance or exercise performance. Abbreviations: CON: control trial; CV: coefficient of variation; EHW: electrolyzed hydrogen water; HR: heart rate; RPE: rating of perceived exertion; SE: standard error; TP: total protein; TTE: time to exhaustion