在户外冷水游泳活动后,心脏的电和功能活动
Victorien Faivre-Rampant1, Corentin Hingrand2, A Mezanger3
1Department of Automatics, Biocybernetics, and Robotics, Jozef Stefan Institut, SI-1000, Ljubljana, Slovenia; Jožef Stefan International Postgraduate School, Jamova cesta 39, 1000, Ljubljana, Slovenia; Normandie Univ, UNICAEN, Inserm Comete, GIP Cyceron, 14000, Caen, France.
Journal of thermal biology
|October 26, 2024
概括
户外冷水游泳 (OCWS) 可能会在训练有素的运动员中延长心脏再极化. 这项研究发现运动后的QT间隔延迟而不会影响心脏功能,这表明在OCWS期间进一步研究自主神经系统调节.
科学领域:
- 运动医学 运动医学
- 心脏病学 心脏病学
- 环境生理学环境生理学
背景情况:
- 户外冷水游泳 (OCWS) 结合了耐力运动和暴露在寒冷中.
- 在耐力OCWS事件中存在潜在的急性不良心脏事件的担忧.
研究的目的:
- 分析长期OCWS对训练有素运动员心脏功能的影响.
- 调查与耐力OCWS相关的潜在心脏风险.
主要方法:
- 20名训练有素的运动员在15°C的水中参加了1000米OCWS比赛,长达6小时.
- 在游泳前后评估核心体温,心电图和心声回声.
- 经QT间隔校正 (QTc) 分析了心脏复极化的变化.
主要成果:
- 平均游泳时间为214分钟,最低核心温度达到35.6°C.
- 运动后观察到QTc间隔显著延长 (p=0.012).
- 没有发现双心室缩功能或左心室放松的变化.
结论:
- 在健康训练有素的个体中,OCWS似乎会急剧延迟心脏再极化.
- 没有观察到心脏功能显著受损.
- 需要进一步的研究来了解QT延长的临床影响及其与OCWS期间自主调节的联系.
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