2022, Vol. 26 ›› Issue (11): 1734-1740

Characteristics and influencing factors of carotid blood flow in younger adults in different body positions

Yu Basuo1, Sun Mingyun2, Yang Hongmei2, Bao Yaling3, Qian Zhenyu2, Meng Haijiang2, Zhou Duoqi2

1Xi’an Physical Education University, Xi’an 710068, Shaanxi Province, China; 2College of Physical Education, Anqing Normal University, Anqing 246133, Anhui Province, China; 3the PLA Navy AnQing Hospital, Anqing 246003, Anhui Province, China

Received:2020-09-19 Revised:2020-09-21 Accepted:2021-07-28 Online:2022-04-18 Published:2021-12-11
Contact: Sun Mingyun, MD, Associate professor, Master’s supervisor, College of Physical Education, Anqing Normal University, Anqing 246133, Anhui Province, China
About author:Yu Basuo, Master, Lecturer, Xi’an Physical Education University, Xi’an 710068, Shaanxi Province, China
Supported by:
the Key Project of Natural Science Foundation of Anhui Provincial Department of Education, No. KJ2017A364 (to SMY); Anhui Provincial Philosophy and Social Science Planning Project, No. AHSKY2018D58 (to MHJ); Provincial-level Teaching Research Key Project of Anhui Provincial Colleges and Universities, No. 2018jyxm1365 (to SMY)

Abstract: BACKGROUND: During rehabilitation training, handstand equipment is increasingly used for head-down tilt training. Concerns therefore have been paid to the characteristics of carotid blood flow changes in different positions during the head-down tilt training.
OBJECTIVE: To explore the characteristics of carotid blood flow changes in different body positions.
METHODS: A total of 104 college volunteers (male, 60; female, 44) were recruited and their carotid hemodynamic changes in different positions were measured by using PHILIPS COLOR DOPPLER CV850 color ultrasound.

RESULTS AND CONCLUSION: The blood flow of the left common carotid artery in female (P=0.031) and the blood flow of the left common carotid artery (P=0.033), right common carotid artery (P=0.003), and right internal carotid artery (P=0.030) in male were significantly reduced in the head-up position compared with the supine position. The blood flow of the left common carotid artery (P=0.018), right common carotid artery (P=0.001), and left vertebral artery (P=0.049) in female and the blood flow of the left common carotid artery (P=0.007) and right common carotid artery (P=0.005) in male were significantly reduced in -30o head-down tilt compared with the supine position. The blood flow of the left common carotid artery (P=0.000) and right common carotid artery (P=0.000) in male and female, the blood flow of the left internal carotid artery (P=0.002) and right internal carotid artery (P=0.002) in female, and the blood flow of the left internal carotid artery (P=0.001), right internal carotid artery (P=0.000), and left vertebral artery (P=0.003) in male were significantly reduced in -90o head-down tilt compared with the supine position. To conclude, compared with the supine position, the blood flow of the common carotid artery, internal carotid artery and vertebral artery changes a lot in the head-up position, -30o head-down tilt, and -90o head-down tilt, especially in -90o head-down tilt.

Key words:hemodynamics, different positions, blood flow, carotid artery, rehabilitation training, head-down tilt

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