Effects of baseline heart rate at sea level on cardiac responses to high-altitude exposure.
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ABSTRACT:
SUBMITTER: Tian J
PROVIDER: S-EPMC7174267 | biostudies-literature | 2020 May
REPOSITORIES: biostudies-literature
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Effects of baseline heart rate at sea level on cardiac responses to high-altitude exposure.
Tian Jingdu J Liu Chuan C Yang Yuanqi Y Yu Shiyong S Yang Jie J Zhang Jihang J Ding Xiaohan X Zhang Chen C Rao Rongsheng R Zhao Xiaohui X Huang Lan L
The international journal of cardiovascular imaging 20200117 5
High-altitude (HA) exposure has been widely considered as a cardiac stress, and associated with altered cardiac function. However, the characteristics of cardiac responses to HA exposure are unclear. In total, 240 healthy men were enrolled and ascended to 4100 m by bus within 7 days. Standard echocardiography and color tissue Doppler imaging were performed at sea level and at 4100 m. In all subjects, HA exposure increased HR [65 (59, 71) vs. 72 (63, 80) beats/min, p < 0.001] but decreased the st ...[more]
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