Accepted Article This article has been accepted for publication and undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process, which may lead to differences between this version and the Version of Record. Please cite this article as doi: 10.1111/sms.13396 This article is protected by copyright. All rights reserved. DR ROY TH CHEUNG (Orcid ID : 0000-0001-7990-3007) MS ZOE YS CHAN (Orcid ID : 0000-0002-8883-1858) MS AISLINN J.C. MACPHAIL (Orcid ID : 0000-0003-0632-8093) Article type : Original Article Shoe-mounted accelerometers should be used with caution in gait retraining Roy T.H. Cheung 1 ; Janet H. Zhang 1 ; Zoe Y.S. Chan 1 ; Winko W. An 2 ; Ivan P.H. Au 1 ; Aislinn MacPhail 1 ; Irene S. Davis 3 1 Gait & Motion Analysis Laboratory, Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hung Hom, Hong Kong 2 Department of Biomedical Engineering, Boston University, Boston, MA, USA 3 Spaulding National Running Center, Department of Physical Medicine & Rehabilitation, Harvard Medical School, Cambridge, MA, USA Corresponding author: Dr. Roy T.H. Cheung, Gait & Motion Analysis Lab, Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hung Hom, Hong Kong; Email: Roy.Cheung@polyu.edu.hk; Phone: +852 2766 6739; Fax: +852 2330 8656