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Christopher Hamlin 《Science & Education》2017,26(1-2):191-193
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The aim of this study was to determine whether 3 weeks of intermittent normobaric hypoxic exposure at rest was able to elicit changes that would benefit multi-sport athletes. Twenty-two multi-sport athletes of mixed ability were exposed to either a normobaric hypoxic gas (intermittent hypoxic training group) or a placebo gas containing normal room air (placebo group). The participants breathed the gas mixtures in 5-min intervals interspersed with 5-min recovery periods of normal room air for a total of 90 min per day, 5 days per week, over a 3-week period. The oxygen in the hypoxic gas decreased from 13% in week 1 to 10% by week 3. The training and placebo groups underwent a total of four performance tests, including a familiarization and baseline trial before the intervention, followed by trials at 2 and 17 days after the intervention. Time to complete the 3-km run decreased by 1.7%[95% confidence interval (CI) = -0.6 - 3.9%] 2 days after, and by 2.3% (CI = 0.25 - 4.4%) 17 days after, the last hypoxic episode in the training relative to the placebo group. Substantial changes in the training relative to the placebo group also included increased reticulocyte count 2 days (23.5%; CI =-1.9 to 44.9%) and 12 days (14.6%; CI = -7.1 to 36.4%) post-exposure. The effect of intermittent hypoxic training on 3-km performance found in this study is likely to be beneficial, which suggests non-elite multi-sport athletes should expect such training to enhance performance. 相似文献
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Elwood Kristin Jordan Michelle E. 《Educational technology research and development : ETR & D》2022,70(5):1781-1807
Educational technology research and development - The educational landscape continues to become increasingly complex, which suggests a need for a teacher-driven creative approach to developing... 相似文献
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Organizations are increasingly concerned about human resource accountability and have turned to HR metrics as an economical way to assess results from human resource activities. Unfortunately, many existing development metrics have limited utility. In this article, we review and discuss existing metrics for employee development. Then, we present five new development metrics and that can provide a core set of metrics for any type of organization. These metrics will provide new perspectives that older metrics do not, and lead to better human resource development decisions. 相似文献
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