Dose-effect of exercise intervention on heart rate variability of acclimatized young male lowlanders at 3,680 m

This study investigated whether exercise could improve the reduced HRV in an environment of high altitude. A total of 97 young, healthy male lowlanders living at 3,680 m for >1 year were recruited. They were randomized into four groups, of which three performed—low-, moderate-, and high-inten...

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Main Authors: Rui Su, Ping Peng, Wenrui Zhang, Jie Huang, Jing Fan, Delong Zhang, Jiayuan He, Hailin Ma, Hao Li
Format: Article
Language:English
Published: Frontiers Media S.A. 2024-03-01
Series:Frontiers in Physiology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fphys.2024.1331693/full
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author Rui Su
Rui Su
Ping Peng
Wenrui Zhang
Jie Huang
Jing Fan
Delong Zhang
Delong Zhang
Jiayuan He
Jiayuan He
Hailin Ma
Hao Li
author_facet Rui Su
Rui Su
Ping Peng
Wenrui Zhang
Jie Huang
Jing Fan
Delong Zhang
Delong Zhang
Jiayuan He
Jiayuan He
Hailin Ma
Hao Li
author_sort Rui Su
collection DOAJ
description This study investigated whether exercise could improve the reduced HRV in an environment of high altitude. A total of 97 young, healthy male lowlanders living at 3,680 m for >1 year were recruited. They were randomized into four groups, of which three performed—low-, moderate-, and high-intensity (LI, MI, HI) aerobic exercise for 4 weeks, respectively. The remaining was the control group (CG) receiving no intervention. For HI, compared to other groups, heart rate (p = 0.002) was significantly decreased, while standard deviation of RR intervals (p < 0.001), SD2 of Poincaré plot (p = 0.046) and the number of successive RR interval pairs that differ by > 50 ms divided by total number of RR (p = 0.032), were significantly increased after intervention. For MI, significantly increase of trigonometric interpolation in NN interval (p = 0.016) was observed after exercise. Further, a decrease in systolic blood pressure (SBP) after high-intensity exercise was found significantly associated with an increase in SD2 (r = – 0.428, p = 0.042). These results indicated that there was a dose effect of different intensities of aerobic exercise on the HRV of acclimatized lowlanders. Moderate and high-intensity aerobic exercise would change the status of the autonomic nervous system (ANS) and decrease the blood pressure of acclimatized lowlanders exposed to high altitude.
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spelling doaj.art-b4a1c7c224c64438a2751759e5797d972024-03-28T10:01:21ZengFrontiers Media S.A.Frontiers in Physiology1664-042X2024-03-011510.3389/fphys.2024.13316931331693Dose-effect of exercise intervention on heart rate variability of acclimatized young male lowlanders at 3,680 mRui Su0Rui Su1Ping Peng2Wenrui Zhang3Jie Huang4Jing Fan5Delong Zhang6Delong Zhang7Jiayuan He8Jiayuan He9Hailin Ma10Hao Li11Key Laboratory of High Altitudes Brain Science and Environmental Acclimation, Tibet University, Lhasa, ChinaSchool of Psychological and Cognitive Sciences and Beijing Key Laboratory of Behavior and Mental Health, Peking University, Beijing, ChinaKey Laboratory of High Altitudes Brain Science and Environmental Acclimation, Tibet University, Lhasa, ChinaKey Laboratory of High Altitudes Brain Science and Environmental Acclimation, Tibet University, Lhasa, ChinaKey Laboratory of High Altitudes Brain Science and Environmental Acclimation, Tibet University, Lhasa, ChinaKey Laboratory of High Altitudes Brain Science and Environmental Acclimation, Tibet University, Lhasa, ChinaKey Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, Guangzhou, ChinaSchool of Psychology, Center for Studies of Psychological Application, and Guangdong Key Laboratory of Mental Health and Cognitive Science, South China Normal University, Guangzhou, ChinaNational Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, Sichuan, ChinaMed-X Center for Manufacturing, Sichuan University, Chengdu, Sichuan, ChinaKey Laboratory of High Altitudes Brain Science and Environmental Acclimation, Tibet University, Lhasa, ChinaKey Laboratory of High Altitudes Brain Science and Environmental Acclimation, Tibet University, Lhasa, ChinaThis study investigated whether exercise could improve the reduced HRV in an environment of high altitude. A total of 97 young, healthy male lowlanders living at 3,680 m for >1 year were recruited. They were randomized into four groups, of which three performed—low-, moderate-, and high-intensity (LI, MI, HI) aerobic exercise for 4 weeks, respectively. The remaining was the control group (CG) receiving no intervention. For HI, compared to other groups, heart rate (p = 0.002) was significantly decreased, while standard deviation of RR intervals (p < 0.001), SD2 of Poincaré plot (p = 0.046) and the number of successive RR interval pairs that differ by > 50 ms divided by total number of RR (p = 0.032), were significantly increased after intervention. For MI, significantly increase of trigonometric interpolation in NN interval (p = 0.016) was observed after exercise. Further, a decrease in systolic blood pressure (SBP) after high-intensity exercise was found significantly associated with an increase in SD2 (r = – 0.428, p = 0.042). These results indicated that there was a dose effect of different intensities of aerobic exercise on the HRV of acclimatized lowlanders. Moderate and high-intensity aerobic exercise would change the status of the autonomic nervous system (ANS) and decrease the blood pressure of acclimatized lowlanders exposed to high altitude.https://www.frontiersin.org/articles/10.3389/fphys.2024.1331693/fullaerobic exerciseexercise intensityhigh altitudeheart rate variabilitylowlanders
spellingShingle Rui Su
Rui Su
Ping Peng
Wenrui Zhang
Jie Huang
Jing Fan
Delong Zhang
Delong Zhang
Jiayuan He
Jiayuan He
Hailin Ma
Hao Li
Dose-effect of exercise intervention on heart rate variability of acclimatized young male lowlanders at 3,680 m
Frontiers in Physiology
aerobic exercise
exercise intensity
high altitude
heart rate variability
lowlanders
title Dose-effect of exercise intervention on heart rate variability of acclimatized young male lowlanders at 3,680 m
title_full Dose-effect of exercise intervention on heart rate variability of acclimatized young male lowlanders at 3,680 m
title_fullStr Dose-effect of exercise intervention on heart rate variability of acclimatized young male lowlanders at 3,680 m
title_full_unstemmed Dose-effect of exercise intervention on heart rate variability of acclimatized young male lowlanders at 3,680 m
title_short Dose-effect of exercise intervention on heart rate variability of acclimatized young male lowlanders at 3,680 m
title_sort dose effect of exercise intervention on heart rate variability of acclimatized young male lowlanders at 3 680 m
topic aerobic exercise
exercise intensity
high altitude
heart rate variability
lowlanders
url https://www.frontiersin.org/articles/10.3389/fphys.2024.1331693/full
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