Effectiveness of the hypoxic exercise test to predict altitude illness and performance at moderate altitude in high-level swimmers
Effectiveness of the hypoxic exercise test to predict altitude illness and performance at moderate altitude in high-level swimmers
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DOI：
10.14814/phy2.14390
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发表时间：
2020-04-01
影响因子：
2.5
通讯作者：
Richalet, Jean-Paul
中科院分区：
文献类型：
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作者：
Pla, Robin;Brocherie, Franck;Richalet, Jean-Paul
目的：低氧运动试验用于预测严重高原病的易感性。方法：18名优秀游泳运动员在进行为期12天(1850米)的中等海拔训练营之前，在海平面上进行低氧运动试验，以确定他们是否对沙伊病易感。在干预前(海平面)、干预期间(1850米)和干预后(海平面)进行最大游泳成绩测试。每天早晨收集动脉血氧饱和度(脉搏血氧饱和度)、路易斯湖评分和睡眠质量问卷。将受试者分为中、高风险组(SHAI(Score)<3)和低风险组(Shai(Score)<3)。结果：7名游泳运动员有高风险，其中3名SHAI(Score)<Gt；5。Pearson相关分析显示，Shai(Score)与高原游泳成绩下降密切相关(r=0.60，p<；01)。低氧运动试验期间的动脉血氧饱和度是与高原运动能力下降最相关的生理变量(r=.54，p<；0.05)。路易斯湖得分和睡眠质量在患有和不患有SHAI的游泳者之间没有差异(p>；1)。结论：在优秀游泳运动员群体中，临床和生理变量(SHAI(得分)、氧饱和度)相结合估计了中等海拔地区的运动能力下降。低氧运动测试可以让教练和科学家更好地确定运动员的个人反应，并管理高原习服。
Purpose: The hypoxic exercise test is used to predict the susceptibility to severe High Altitude Illness (SHAI). In the present study, we aimed to use this test to predict the changes in performance and the physiological responses to moderate altitude in elite swimmers.Methods: Eighteen elite swimmers performed a hypoxic exercise test at sea level before a moderate 12-day altitude training camp (1,850 m) to determine if they were susceptible or not to SHAI. A maximal swimming performance test was conducted before (at sea level), during (at 1,850 m), and after (at sea level) the intervention. Arterial oxygen saturation (pulse oximetry), Lake Louise score, and quality of sleep questionnaire were collected every morning. The participants were classified in two groups, those who had a moderate to high risk of SHAI (SHAI(score) >= 3) and those who had a low risk of SHAI (SHAI(score) < 3).Results: Seven swimmers presented a high risk of SHAI including three of them with a SHAI(score) > 5. Pearson correlations indicated that SHAI(score) was strongly correlated with the decrease in swimming performance at altitude (r = .60, p < .01). Arterial oxygen saturation during the hypoxic exercise test was the physiological variable that was best related to performance decrease at altitude (r = .54, p < .05). No differences were observed for Lake Louise score and quality of sleep between swimmers who suffered from SHAI or not (p > .1).Conclusion: In a population of elite swimmers, the combination of clinical and physiological variables (SHAI(score), oxygen desaturation) estimated the performance decrease at moderate altitude. The hypoxic exercise test could allow coaches and scientists to better determine the individual response of their athletes and manage the altitude acclimatization.