Blood flow restricted walking alters gait kinematics

Author:

Walden Thomas P.12ORCID,Fairchild Timothy12,Girard Olivier3,Peiffer Jeremiah J.1,Jonson Andrew M.2ORCID,Dempsey Alasdair R.24

Affiliation:

1. Centre for Healthy Ageing Murdoch University Perth Australia

2. Discipline of Exercise Science College of Science, Health, Engineering and Education Murdoch University Murdoch Australia

3. School of Human Sciences (Exercise and Sport Science) The University of Western Australia Crawley Australia

4. Centre for Molecular Medicine and Innovative Therapeutics Murdoch University Perth Australia

Abstract

ABSTRACTThis study investigated the impact of blood flow restriction (BFR) during treadmill walking on gait kinematics. Twenty‐one participants completed one familiarisation and four experimental sessions, including two walking speeds (moderate [5.0 ± 0.3km·h−1] and fast [6.4 ± 0.4km·h−1]) and two occlusion conditions (BFR [60% of arterial occlusion pressure] and unrestricted). For each exercise intensity, the BFR session was performed first. Participants were instructed to walk as long as possible, with sessions capped at 20 min. Unrestricted sessions were time‐matched, and the order of exercise intensity was randomised. Kinematics were collected over 10s every minute using retro‐reflective markers affixed to specific body landmarks. Ratings of perceived exertion and discomfort were collected every two minutes. Blood samples were collected from the fingertip pre‐exercise and the finger and toe post‐exercise, and were analysed for lactate, electrolytes, and markers of cell‐membrane damage. During the BFR sessions the cuffs remained inflated while the blood samples were collected. Fast‐walk BFR sessions exhibited higher anterior trunk flexion (p = 0.001) and knee flexion during stance (p = 0.001) compared to all other sessions. Step width was increased during BFR sessions (p = 0.001), but no difference in step length (p = 0.300) or cadence (p = 0.922) were observed. The time required to elicit change in anterior trunk flexion and plantar‐flexion angle at toe‐off was shorter during BFR sessions (p = 0.024). The BFR sessions elicited the highest ratings of perceived exertion and discomfort, as well as blood lactate concentration (p ≤ 0.001). Application of BFR during moderate and fast treadmill walking modifies gait kinematics and exacerbates exercise‐related sensations as well as blood lactate concentration.

Publisher

Wiley

Subject

Orthopedics and Sports Medicine,Physical Therapy, Sports Therapy and Rehabilitation,General Medicine

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3