Reliability and criterion validity of two-dimensional movement assessments in those with patellofemoral pain |
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| Affiliation: | 1. University of Wisconsin-Milwaukee, 3409 Downer Avenue, Milwaukee, WI, 53211, USA;2. Concordia University, 12800 N Lake Shore Dr, Mequon, WI, 53097, USA;1. Seattle Children''s, Seattle, WA, USA;2. Nicklaus Children''s Hospital, Miami, FL, USA;3. Connecticut Children''s Medical Center, Hartford, CT, USA;4. Children''s Hospital of Philadelphia, Philadelphia, PA, USA;5. Arkansas Children''s Hospital, Little Rock, AR, USA;1. Department of Rehabilitation, Akita City Hospital, Akita, Japan;2. Department of Physical Therapy, Akita University Graduate School of Health Sciences, Akita, Japan;3. Department of Rehabilitation, Akita Kousei Medical Center, Akita, Japan;4. Department of Rehabilitation, Akita University Hospital, Akita, Japan;5. Department of Rehabilitation, Noshiro Kousei Medical Center, Akita, Japan;1. Universidade Federal da Paraíba – UFPB, João Pessoa, PB, Brazil;2. Instituto de Pesquisas Biomédicas, Universidade, Brazil;1. Faculty of Physical Therapy, Mahidol University, Nakhon Pathom, Thailand;2. Allied Health Research Unit, University of Central Lancashire, Preston, UK;1. Centre for Injury Prevention and Performance, Department of Athletic Therapy and Training, School of Health and Human Performance, Dublin City University, Dublin, Ireland;2. Department of Athletic Training, Duquesne University, Pittsburgh, PA, USA;3. UPMC Sports Medicine Concussion Program, Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, USA;1. Unit of Physiotherapy, Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden;2. Center for Medical Image Science and Visualization (CMIV), Department of Health, Medicine and Caring Sciences, Linköping University, Sweden;3. Stockholm Sports Trauma Research Center, Dept of Molecular Medicine & Surgery, Karolinska Institute, Sweden |
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| Abstract: | ObjectivesDetermine criterion validity and intra/inter-rater reliability of 2-dimensional (2D) knee frontal plane projection angle (kFPPA), hip frontal plane projection angle (hFPPA), and dynamic valgus index (DVI) during forward step-downs in those with patellofemoral pain (PFP).DesignCross-sectional.SettingUniversity research laboratory.Participants39 participants with PFP (34.18 ± 7.41years, 170± .1 cm, 81.03 ± 19.36 kg, duration of pain: 68.67 ± 85.08months, anterior knee pain scale: 80.49 ± 7.87, visual analog scale:2.08 ± 2.02)Main outcome measuresAverage 3D hip and knee sagittal, frontal, and transverse joint angles and 2D kFPPA, hFPPA, and DVI at maximum knee flexion were variables of interest. 3D DVI was calculated as the sum of hip and knee frontal and transverse angles. 2D kFPPA, hFPPA, and DVI were calculated by two raters independently on two occasions.ResultsIntra- and inter-rater reliability of all 2D angles were excellent. kFPPA was moderately correlated to 3D knee transverse angles. hFPPA was moderately correlated to 3D hip frontal and transverse angles and largely correlated to 3D DVI. 2D DVI was moderately correlated to hip transverse angles.ConclusionkFPPA, hFPPA, and DVI are reliable. hFPPA may be reflective of 3D hip and knee frontal and transverse motion during forward step-downs in those with PFP. |
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| Keywords: | Measurement properties Movement assessment Frontal plane projection angle Dynamic valgus index |
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