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. 2022 Sep 8;14:927009. doi: 10.3389/fnagi.2022.927009

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Copyright © 2022 Chen, Xu, Zhou, Li, Zeng, Mei and Xing.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Comparison of autoregulation parameters between groups in VLF. (A,B) The phase difference from the PD-OH group is significantly lower than that of PD-NOH on both body postures. (C) During standing, there is significant difference in normalized gain between three groups. (D) The coherence of the standing position is higher than that of the supine in PD-NOH and HC. *Indicates P < 0.05; ^#Indicates P < 0.05 for comparison with supine; The whiskers in subplots (A–C) indicate the data range, and the error bars in subplot (D) indicates standard deviation. Eighty-nine PD patients and 20 HC in supine, 83 PD patients, and 20 HC in standing.