Journal article
Reliability and validity of two-dimensional motion capture to assess ankle dorsiflexion motion and heel raise work
Physical therapy in sport, Vol.62, pp.10-16
07/2023
DOI: 10.1016/j.ptsp.2023.05.006
PMCID: PMC10526702
PMID: 37300968
Abstract
To determine the inter-rater reliability and criterion validity of two-dimensional (2D) measures of ankle function in the sagittal plane for participants with Achilles tendinopathy (AT).
Cohort study.
University Laboratory, Participants, Adults with AT (N = 18, Women: 72.2%, Age = 43.4 ± 15.8 years, BMI = 28.7 ± 8.9 kg/m2)
Reliability and validity were determined with intra-class correlation coefficients (ICC), standard error of the measurement (SEM), minimal detectable change (MDC), and Bland-Altman plots for ankle dorsiflexion and positive work during heel raises.
Inter-rater reliability between three raters for all 2D motion analysis tasks was good to excellent (ICC = 0.88 to 0.99). Criterion validity between 2D and 3D motion analyses for all tasks was good to excellent (ICC = 0.76 to 0.98). 2D motion analysis overestimated ankle dorsiflexion motion by 1.0–1.7° (3% of mean sample value) and positive ankle joint work by 76.8 J (9% of mean) compared to 3D motion analysis.
Although 2D and 3D measures are not interchangeable, the good to excellent reliability and validity of 2D measures in the sagittal plane support the use of video analysis to quantify ankle function for individuals with foot and ankle pain.
•Ankle dorsiflexion and positive work can be captured with minimal equipment using 2D measures.•2D measures overestimate ankle function by 3% to 9% compared to 3D motion analysis.•2D measures are reliable and valid for individuals with Achilles tendinopathy.
Details
- Title: Subtitle
- Reliability and validity of two-dimensional motion capture to assess ankle dorsiflexion motion and heel raise work
- Creators
- Megan Dao - University of IowaHadley Mosby - University of IowaEmma Westphalen - University of IowaAndrew A. Post - University of IowaJason M. Wilken - University of IowaCesar de Cesar Netto - University of IowaMederic M. Hall - University of IowaJessica Danielson - University of IowaKathleen A. Sluka - University of IowaRuth L. Chimenti - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Physical therapy in sport, Vol.62, pp.10-16
- DOI
- 10.1016/j.ptsp.2023.05.006
- PMID
- 37300968
- PMCID
- PMC10526702
- NLM abbreviation
- Phys Ther Sport
- ISSN
- 1466-853X
- eISSN
- 1873-1600
- Publisher
- Elsevier Ltd
- Grant note
- DOI: 10.13039/100006108, name: National Center for Advancing Translational Sciences, award: R00AR071517, UL1TR002537; DOI: 10.13039/100009713, name: Foundation for Physical Therapy Research; DOI: 10.13039/100000002, name: National Institutes of Health; DOI: 10.13039/100000069, name: National Institute of Arthritis and Musculoskeletal and Skin Diseases
- Language
- English
- Date published
- 07/2023
- Academic Unit
- Radiology; Iowa Neuroscience Institute; Orthopedics and Rehabilitation; Family and Community Medicine; Nursing; Physical Therapy and Rehabilitation Science; Neuroscience and Pharmacology
- Record Identifier
- 9984426747402771
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