McMinn, KJDiewald, SNHarrison, CCronin, JBYe-Lee, D2024-03-052024-03-052024-01-28Healthcare Technology Letters, ISSN: 2053-3713 (Print); 2053-3713 (Online), Institution of Engineering and Technology (IET). doi: 10.1049/htl2.120742053-37132053-3713http://hdl.handle.net/10292/17291The importance of hip adductor strength for injury prevention and performance benefits is well documented. The purpose of this study was to establish the intra- and inter-day variability of peak force (PF) of a groin squeeze protocol using a custom-designed compression strain gauge device. Sixteen semi-professional soccer players completed three trials over three separate testing occasions with at least 24-h rest between each session. The main findings were that the compression strain gauge was a reliable device for measuring PF within and between days. All intraclass correlations were higher than 0.80 and coefficients of variations were below 10% across the different sessions and trials. Due to the information gained through the compression strain gauge, the higher sampling frequency utilized, portability, and the relatively affordable price, this device offers an effective alternative for measuring maximal strength for hip adduction.© 2024 The Authors. Healthcare Technology Letters published by John Wiley & Sons Ltd on behalf of The Institution of Engineering and Technology. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.http://creativecommons.org/licenses/by-nc-nd/4.0/4201 Allied Health and Rehabilitation Science42 Health SciencesClinical ResearchPreventionPhysical Injury - Accidents and Adverse Effects4003 Biomedical engineering4203 Health services and systems4601 Applied computingJournal ArticleOpenAccess10.1049/htl2.12074