Exploration of shear wave elastography measures of the iliotibial band during different tasks in pain-free runners |
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| Affiliation: | 1. The University of Queensland, School of Health and Rehabilitation Sciences, Brisbane, Qld, 4072, Australia;2. Faculty of Sport Sciences, Laboratory "Movement, Interactions, Performance" (EA 4334), University of Nantes, Nantes, France;3. Institut Universitaire de France (IUF), Paris, France;1. PT Solutions, 2221 S. Dale Mabry Hwy, Tampa, FL, 33629, USA;2. Texas Health Sports Medicine Southwest, 6301 Harris Pkwy. Suite 150, Fort Worth, TX, 76132, USA;3. Fort Worth Orthopedics, 6301 Harris Pkwy. Suite 200, Fort Worth, TX, 76132, USA;4. Sideline Orthopedics and Sports, 4401 Park Springs Blvd. Suite 130, Arlington, TX, 76017, USA;5. Northwestern University, Department of Physical Therapy & Human Movement Sciences: Feinberg School of Medicine, Chicago, IL, USA;6. Elite Orthosport Physical Therapy and Performance, 12121 Wilshire Blvd, Unit 100, Los Angeles, CA, 90025, USA;1. School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, Australia;2. Metropolitan Hospital, Athens, Greece;3. OrthoSport Victoria Research Unit, Melbourne, Australia;1. Musculoskeletal Science and Sports Medicine Research Centre, Department of Sport and Exercise Sciences, Manchester Metropolitan University, Manchester, UK;2. Faculty of Health, Social Care and Medicine, Edge Hill University, Ormskirk, UK;3. Faculty of Health, Psychology and Social Care, Manchester Metropolitan University, Manchester, UK;4. Aston Medical School, Aston University, Birmingham, UK;1. Dutch Consumer Safety Institute (VeiligheidNL), Amsterdam, the Netherlands;2. Department of Rehabilitation, Physical Therapy Science & Sport, University Medical Center Utrecht, Brain Center, Utrecht University, Utrecht, the Netherlands;1. Department of Physical Therapy and Human Movement Sciences, Northwestern University Feinberg School of Medicine, Chicago, IL, United States;2. Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, United States |
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| Abstract: | ObjectivesTo determine whether shear wave velocity (SWV) of the iliotibial band (ITB): i) increases with active and passive static tasks, and a dynamic task, ii) differs between ITB regions, iii) changes after exposure to running. Additionally, it aimed to determine the between-day reliability.DesignCase series & test-retest.SettingHuman movement unit laboratory.ParticipantsFifteen runners.Main outcome measuresSWV was measured unilaterally in three regions of the ITB (proximal, middle and distal), during six tasks: rest and contraction (pre- and post-running), modified Ober test, standing, pelvic drop, and weight shift.ResultsCompared to rest, SWV was higher during contraction and Ober test in the distal and middle regions, and higher for the middle region in standing and pelvic drop. No differences were found between regions. A tendency of decreased SWV was observed after running. Compared to the start of the dynamic task, SWV was greater at the end of the movement. Reliability was moderate-to-good for the middle region in the standing tasks (ICCs = 0.68 to 0.84).ConclusionSVW of the ITB was higher under passive or active tension. Comparisons between tasks/regions need to be considered in light of the small sample size and poor repeatability of some regions/conditions. |
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| Keywords: | Iliotibial band Shear wave velocity Stiffness Elasticity Running |
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