Effects of Eight Weeks Altitude Training on the Aerobic Capacity and Microcirculation Function in Trained Rowers

Meng Zhijun; Gao Huan; Li Tao; Ge Peng; Xu Yixiao; Gao Binghong

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Effects of Eight Weeks Altitude Training on the Aerobic Capacity and Microcirculation Function in Trained Rowers

机译：八周高度训练对训练赛赛车的好处和微循环功能的影响

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Meng, Zhijun, Huan Gao, Tao Li, Peng Ge, Yixiao Xu, and Binghong Gao. Effects of eight weeks altitude training on the aerobic capacity and microcirculation function in trained rowers. High Alt Med Biol 00:000-000, 2020.Background: The mechanism of aerobic improvement after altitude training (AT) has not been resolved yet. Few studies have looked at microcirculation changes after AT in athletes.Materials and Methods: Thirty-three male rowers were recruited and divided into either the AT (n = 18, altitude 2,280 m) or the sea level training (ST group, n = 15, altitude 50 m) for 8 weeks training. Microcirculation function was monitored using a laser Doppler flowmeter. VO2peak and ergometer 5 km time trial (Er5k) were conducted.Results: Within the AT group there was an 8.8% increment in VO2peak from pre- to post-training (4,708.9 +/- 455.2 vs. 5,123.3 +/- 391.2 ml/min, p 0.01), whereas in ST group there was a 3.1% increase of VO2peak from pre- to post-training (4,975.4 +/- 501.1 vs. 5,128.0 +/- 499.3 m/min, p = 0.125). Er5k performance in AT group was significantly improved (1,040.3 +/- 26.3 vs. 1,033.2 +/- 27.5 seconds, p = 0.038), whereas in ST group Er5k performance was not improved (1,059.6 +/- 30.9 vs. 1,060.4 +/- 33.2 seconds, p = 0.819). Postocclusive reactive hyperemia reserve and heat reserve in the forearm of AT subjects increased significantly after 8 weeks. Meanwhile, the AT group's resting blood flow and cutaneous vascular conductance (CVC) of the thigh were higher after AT. For the ST group, resting blood flow and CVC in the thigh decreased significantly at third week post-training. There was a low correlation between the change of VO2peak and blood flow of the thigh (r = 0.45, p = 0.01).Conclusions: Trained rowers benefit more from 8 weeks of AT than from 8 weeks ST in terms of aerobic capacity. We have found that 8 weeks of AT increases thigh blood flow and improves endothelial function.

机译：孟，志金，桓高，陶丽，彭··李秀旭，宾宏高。八周高度训练对训练赛赛赛车能力和微循环功能的影响。高Alt Med Biol 00：000-000,2020.Background：海拔高度训练（AT）后的有氧改善机制尚未得到解决。在运动员中，少数研究看着微循环变化。关于的材料和方法：招募了三十三名雄性赛艇运动员并分为at（n = 18，高度2,280 m）或海平面训练（st组，n = 15 ，海拔50米）训练8周。使用激光多普勒流量计监测微循环功能。 vo2peak和2 km时间试验（ER5K）进行了5公里，P <0.01），而在ST组中，从训练前的VO2Peak增加了3.1％（4,975.4 +/- 501.1和5,128.0 +/- 499.3 m / min，p = 0.125）。在组中的ER5K性能显着改善（1,040.3 +/- 26.3，达到1,033.2 +/- 27.5秒，而在ST组ER5K性能下没有改善（1,059.6 +/- 30.9与1,060.4 +/- 33.2秒，p = 0.819）。 8周后，在受试者的前臂的前臂的突击性反应性高血量储备和热量储备在显着增加。同时，AT组的休息血液流动和大腿的皮肤血管传导（CVC）后较高。对于ST组，在训练后第三周，大腿的休息血流和CVC显着下降。 vo2peak和大腿血流的变化之间存在低相关（r = 0.45，p = 0.01）。结论：训练有素的划艇在有氧能力方面从8周的8周内受益于8周。我们发现，在大腿血流增加8周，提高内皮功能。

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《High Altitude Medicine & Biology》 |2021年第1期|24-31|共8页
作者
Meng Zhijun; Gao Huan; Li Tao; Ge Peng; Xu Yixiao; Gao Binghong;
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作者单位

Shanghai Univ Sport Sch Kinesiol Ctr Lab Shanghai Peoples R China|Res Inst Sports Sci Yunnan Prov Kunming Yunnan Peoples R China;

Shanghai Res Inst Sports Sci Res Ctr Competit Sports 1 Shanghai Peoples R China;

Shanghai Res Inst Sports Sci Res Ctr Competit Sports 1 Shanghai Peoples R China;

Shanghai Univ Sport Sch Kinesiol Ctr Lab Shanghai Peoples R China;

Shanghai Univ Sport Sch Kinesiol Ctr Lab Shanghai Peoples R China;

Shanghai Univ Sport Sch Phys Educ & Sport Training Changhai Rd 399 Shanghai 200438 Peoples R China;

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收录信息美国《科学引文索引》(SCI);美国《化学文摘》(CA);
原文格式 PDF
正文语种 eng
中图分类
关键词
altitude training; blood flow; rowers; VO2peak;

机译：高空训练;血流;划艇;vo2peak;

Effects of Eight Weeks Altitude Training on the Aerobic Capacity and Microcirculation Function in Trained Rowers

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