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首页> 外文期刊>Journal of Sports Science and Medicine >Physiological Responses to Heat Acclimation: A Systematic Review and Meta-Analysis of Randomized Controlled Trials
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Physiological Responses to Heat Acclimation: A Systematic Review and Meta-Analysis of Randomized Controlled Trials

机译：热量适应的生理反应：随机对照试验的系统评价和荟萃分析

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The aim of this meta-analysis was to evaluate the effectiveness of heat acclimatization (HA) on time trial (TT) performance, maximum oxygen uptake (VO2max), exercise heart rate (HRE), time trials heart rate (HRTT), maximal heart rate (HRM), core temperature (TC), mean skin temperature (TS), thermal comfort (TComf), plasma volume (PV), blood lactate concentration and rate of perceived exertion (RPE). Cochrane-CENTRAL, EMBASE, CINAHL and PubMed databases and reference lists of included studies were searched for randomized controlled trials that investigated the efficacy of HA in athletes. Data were then extracted from the entered studies for analyses. A total of 11 randomised controlled trials (215 participants; mean age, 26.09 years; 91% men) were included after screening of 508 titles and abstracts and 19 full-text articles. The pooled standard mean difference (SMD) between the HA and non-HA groups were 0.50 (95% CI: 0.03 to 0.97, p = 0.04) for TT performance and 1 (95% CI: 1 to 2, p = 0.007) for HRTT. The pooled mean difference (MD) between the HA and non-HA groups were -7 (95% CI: -13 to -1, p = 0.03) for HRM. The changes in TComf and RPE were too small to be meaningful. There were no significant differences between the HA and non-HA groups for VO2max, HRE, TC, TS, PV and blood lactate concentration (all p & 0.05). This meta-analysis implies that HA may improve tolerance to discomfort during heat exposure, but may not necessarily improve the associated physiological markers of improved performance.
机译：该荟萃分析的目的是评估热适应（HA）的时间试验（TT）性能，最大氧吸收（VO2MAX），运动心率（HRE），时间试验心率（HRTT），最大心脏速率（HRM），核心温度（TC），平均皮肤温度（TS），热舒适度（TCOMF），血浆体积（PV），血液乳酸浓度和感知施加率（RPE）。 Cochrane-Central，Embase，Cinahl和PubMed数据库以及包括研究的参考列表，用于调查HA在运动员中的疗效的随机对照试验。然后从输入的研究中提取数据进行分析。在筛选508个标题和摘要和19个全文文章后，共有11项随机对照试验（215名参与者;平均年龄，26.09岁; 91％）。 HA和非HA基团之间的汇集标准平均差异（SMD）为TT性能为0.50（95％CI：0.03至0.97，P = 0.04），1（95％CI：1至2，P = 0.007） HRTT。 HA和非HA基团之间的合并平均差（MD）为HRM的-7（95％CI：-13至-1，P = 0.03）。 Tcomf和RPE的变化太小而无法意义。 vo2max，Hre，Tc，Ts，PV和血液乳酸浓度（所有P＆ 0.05）之间没有显着差异。该荟萃分析意味着HA可以在热暴露过程中改善对不适的耐受性，但可能不一定能够改善改进性能的相关生理标志。

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