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Abstract

Medicine

在不受控制的环境中进行单腿膝伸肌运动期间基于多普勒超声的腿部血流评估

Published: December 15th, 2023

DOI:

10.3791/65746

1Centre for Physical Activity Research, Copenhagen University Hospital, 2Department of Clinical Physiology and Nuclear Medicine, Copenhagen University Hospital, 3Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 4Department of Nutrition, Exercise and Sports, Integrated Physiology Group, 5Neurovascular Research Laboratory, Faculty of Life Sciences and Education, University of South Wales, 6Department of Anaesthesiology and Intensive Care, Copenhagen University Hospital, Hvidovre Hospital

Abstract

多普勒超声彻底改变了器官血流的评估,并广泛用于研究和临床环境。虽然基于多普勒超声的腿部肌肉收缩血流评估在人体研究中很常见,但这种方法的可靠性需要进一步研究。因此,本研究旨在调查多普勒超声在休息和分级单腿膝关节伸展(0 W、6 W、12 W 和 18 W)期间评估腿部血流的日内重测、日间重测和评估者间可靠性,在测量之间移除超声探头。该研究包括 30 名健康受试者(年龄:33 ± 9.3,男性/女性:14/16),他们在两个不同的实验日访问实验室,相隔 10 天。该研究没有控制主要的混杂因素,如营养状态、一天中的时间或荷尔蒙状态。在不同的运动强度下,结果显示出较高的日内可靠性,变异系数 (CV) 范围为 4.0% 至 4.3%,可接受的日间可靠性,CV 范围为 10.1% 至 20.2%,评分者间可靠性为 17.9% 至 26.8%。因此,在控制各种环境因素具有挑战性的现实临床场景中,多普勒超声可用于确定次最大单腿膝伸肌运动期间的腿部血流量,当由同一超声医师进行时,日内可靠性高,日间可靠性可接受。

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