Feasibility,correlates, and validity of the one-leg sit-to-stand test in individuals following anterior cruciate ligament reconstruction |
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| Affiliation: | 1. Department of Physiotherapy, Singapore General Hospital, Singapore;2. Medicine Academic Programme, Duke-NUS Graduate Medical School, Singapore;3. Department of Health and Social Sciences, Singapore Institute of Technology, Singapore;1. Department of Physical Therapy Faculty of Health and Medical Care, Saitama Medical University, 981, Kawakado, Iruma, Saitama, 350-0436, Japan;2. Department of Rehabilitation, JCHO Tokyo Shinjuku Medical Center, 5-1, Tukudotyo, Shinjyuku, Tokyo 162-8543, Japan;3. Department of Physical Therapy, School of Health Sciences, Japan University of Health Science, 2-555, Suga, Satte, Saitama, 340-0145, Japan;4. Ina Hospital Orthopedics, 9419, Ina, Kitaadati, Saitama, 362-0806, Japan;1. Department of Sports Medicine and Rehabilitation, Beijing Sport University, Beijing, China;2. Physiotherapy Department, MacLehose Medical Rehabilitation Centre, Hong Kong, China;3. Department of Sports Medicine, Peking University Third Hospital, Beijing, China;1. The University of Queensland, School of Health & Rehabilitation Sciences, Brisbane, QLD, 4072, Australia;2. University of Otago, Department of Anatomy, School of Biomedical Sciences, Dunedin, 9016, New Zealand;3. La Trobe Sport and Exercise Medicine Research Centre (LASEM), College of Science, Health and Engineering, School of Allied Health, La Trobe University, Melbourne, Victoria, Australia;4. Northern Centre for Health, Education and Research, Northern Health, Melbourne, Vic, Australia;1. Nexus – Institute for Physical Therapy Education, Gennep, the Netherlands;2. IJsveldFysio – Private Practice for Physical Therapy, Nijmegen, the Netherlands;3. HAN – University of Applied Sciences, Physical Therapy Department, Nijmegen, the Netherlands;4. European Sports Physical Therapy Education Network, Vienna, Austria;5. Physiotherapy Utrecht Oost – Sports Rehabilitation and Manual Therapy, Utrecht, the Netherlands;6. Academic Center for Evidence Based Sports Medicine (ACES), Amsterdam, the Netherlands;1. Athlete Health and Performance Research Centre, Aspetar Orthopaedic and Sports, Medicine Hospital, Doha, Qatar;2. Institute of Sport Exercise and Health, London, UK;3. Division of Surgery & Interventional Science, University College London, UK;4. School of Sport and Exercise Sciences, University of Gloucestershire, UK;5. Qatar University, Physiotherapy Program, Qatar University, Doha, Qatar;6. La Trobe University, Discipline of Podiatry, College of Science, Health and Engineering, La Trobe Sport and Exercise Medicine Research Centre, Victoria, Australia |
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| Abstract: | ObjectiveRegular quadriceps strength assessment is important following anterior cruciate ligament reconstruction (ACLR). The one-leg sit-to-stand (OLSTS) test potentially overcomes the barrier of accessibility to specialised testing equipment. However, feasibility and validity testing of OLSTS is lacking in the ACLR population. This study aims to examine the feasibility, correlates, and predictive validity of OLSTS with self-reported running and jumping difficulty in individuals post-ACLR.DesignRetrospective longitudinal study.Methods20 patients with primary unilateral ACLR were tested at 6-months and 1-year post-ACLR. Feasibility was assessed by the number of patients who had safely performed OLSTS at both timepoints. Cross-sectional gender-adjusted Spearman correlations of OLSTS with quadriceps strength, physical impairments, and psychological variables were measured at 6-months. Predictive validity was assessed via ordinal regression, quantifying the associations of OLSTS with self-reported running and jumping difficulty across time-points.ResultsAll patients understood the instructions to and were able to self-administer the OLSTS test safely. OLSTS is a valid measure of quadriceps strength (gender-adjusted Spearman's ρ = 0.53, P = 0.02). Knee pain (ρ = 0.44, P = 0.046) and readiness to return-to-sport (ρ = 0.55, P = 0.02) were additional correlates. Greater OLSTS performance was associated with greater odds of better self-reported running and jumping function (interquartile-range ORs, 12.0 [95% CI: 3.6–45] and 18.5 [95% CI: 5–67], respectively).ConclusionOLSTS is a feasible and valid test of quadriceps strength, demonstrating predictive validity with self-reported running and jumping post-ACLR. OLSTS potentially allows independent tracking of ACLR rehabilitation progress at home – an increasingly urgent necessity in the face of a global pandemic. |
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| Keywords: | Knee ACL Quadriceps Pain Psychosocial factors |
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