Journal article
TENDINopathy Severity assessment–Achilles (TENDINS-A): evaluation of reliability and validity in accordance with COSMIN recommendations
British journal of sports medicine, Vol.58(12), pp.665-673
04/04/2024
DOI: 10.1136/bjsports-2023-107741
PMID: 38575200
Abstract
ObjectiveTo evaluate the construct validity (structural validity and hypothesis testing), reliability (test–retest reliability, measurement error and internal consistency) and minimal important change (MIC) of the 13-item TENDINopathy Severity assessment–Achilles (TENDINS-A).MethodsParticipants with Achilles pain completed an online survey including: demographics, TENDINS-A, Foot and Ankle Outcome Score (FAOS) and Victorian Institute of Sport Assessment–Achilles (VISA-A). Exploratory factor analysis (EFA) assessed dimensionality. Confirmatory factor analysis (CFA) assessed structural validity (root mean square error of approximation (RMSEA); Comparative Fit Index (CFI); Tucker-Lewis Index (TLI); standardised root measure square (SRMS)). Correlations between TENDINS-A and the FAOS or VISA-A assessed hypothesis testing. Intraclass correlation (ICC) assessed test–retest reliability. Cronbach’s alpha assessed internal consistency. SE of the measurement (SEM) assessed measurement error. A distribution-based approach assessed MIC.Results79 participants (51% female) with a mean (SD) age=42.6 (13.0) years, height=175.0 (11.7) cm and body mass=82.0 (19.1) kg were included. EFA identified three meaningful factors, proposed as pain, symptoms and function. The best model identified using CFA for TENDINS-A had structural validity (RMSEA=0.101, CFI=0.959, TLI=0.947, SRMS=0.068), which included three factors (pain, symptoms and function), but excluded three items from the original TENDINS-A. TENDINS-A exhibited moderate positive correlation with FAOS (r=0.598, p<0.001) and a moderate negative correlation with VISA-A (r=−0.639, p<0.001). Reliability of the TENDINS-A was excellent (ICC=0.930; Cronbach’s α=0.808; SEM=6.54 units), with an MIC of 12 units.ConclusionsOur evaluation of the revised 10-item TENDINS-A determined it has construct validity and excellent reliability, compared with the VISA-A and FAOS which lack content and construct validity. The TENDINS-A is recommended as the preferred patient-reported outcome measure to assess disability in people with Achilles tendinopathy.
Details
- Title: Subtitle
- TENDINopathy Severity assessment–Achilles (TENDINS-A): evaluation of reliability and validity in accordance with COSMIN recommendations
- Creators
- Myles Calder Murphy - The University of Notre Dame AustraliaFergus McCleary - The University of Notre Dame AustraliaDana Hince - The University of Notre Dame AustraliaRuth Chimenti - Department of Physical Therapy and Rehabilitation Science, University of Iowa, Iowa City, Iowa, USAPaola Chivers - The University of Notre Dame AustraliaJ Turner Vosseller - The Orthopaedic InstituteSophia Nimphius - Edith Cowan UniversityNonhlanhla Sharon Mkumbuzi - Nelson Mandela UniversityPeter Malliaras - Monash UniversityNicola Maffulli - University of SalernoRobert-Jan de Vos - Erasmus MCEbonie Kendra Rio - La Trobe University
- Resource Type
- Journal article
- Publication Details
- British journal of sports medicine, Vol.58(12), pp.665-673
- DOI
- 10.1136/bjsports-2023-107741
- PMID
- 38575200
- NLM abbreviation
- Br J Sports Med
- ISSN
- 0306-3674
- eISSN
- 1473-0480
- Publisher
- BMJ Publishing Group Ltd and British Association of Sport and Exercise Medicine
- Language
- English
- Electronic publication date
- 04/04/2024
- Academic Unit
- Physical Therapy and Rehabilitation Science
- Record Identifier
- 9984580298002771
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