Reliability of 2D video analysis assessing running kinematic variables in patients with exercise-related leg pain in a primary care practice.

Autor: Vergeer R; Cureplus, Primary Care Physiotherapy Practice, Stadhoudersweg 1, 3136 BW Vlaardingen, the Netherlands; Department of Rehabilitation, Physical Therapy Science and Sports, University Medical Center Utrecht, the Netherlands. Electronic address: r.vergeer@gmail.com., Bloo H; PMI Rembrandt, Primary Care Physiotherapy Practice, Kerkewijk 92, 3904 JG Veenendaal, the Netherlands; Department of Rehabilitation, Physical Therapy Science and Sports, University Medical Center Utrecht, the Netherlands., Backx F; Department of Rehabilitation, Physical Therapy Science and Sports, University Medical Center Utrecht, the Netherlands., Scheltinga M; Department of Surgery, Maxima Medical Center, Veldhoven, the Netherlands., Bakker E; Department of Clinical Epidemiology, Biostatistics and Bioinformatics, University of Amsterdam, the Netherlands.
Jazyk: angličtina
Zdroj: Gait & posture [Gait Posture] 2023 Sep; Vol. 105, pp. 117-124. Date of Electronic Publication: 2023 Jul 22.
DOI: 10.1016/j.gaitpost.2023.07.279
Abstrakt: Background: Suboptimal lower limb and trunk positionings is known to influence exercise-related leg pain (ERLP). It is unknown whether simple 2D video analysis is useful for recording and interpreting running variables in a primary care practice.
Research Question: Is 2D video analysis a reliable instrument to assess running variables in patients with ERLP in a primary care practice?
Methods: Participants undergoing an evaluation for ERLP in two primary care practices were studied. In this reliability study, analysis of running variables was performed by 4 blinded raters on one-stride videos captured with non-high speed cameras (30 fps). Intraclass correlation coefficients (two-way random; ICC 2,1) were calculated to determine the inter-rater reliability. The intra-rater reliability was presented by ICC type two-way mixed (3,1). Footstrike pattern was analyzed by calculating the Fleiss' kappa for inter-rater agreement and Cohen's kappa for intra-rater agreement. Sample size calculation indicated that 16 participants would be required for answering the research question.
Results: Data of all 16 participants (9 males, age 31 ± 10 yr) were of sufficient quality for analysis. The 2D video analysis demonstrated excellent inter-rater reliability with an overall ICC value of 0.999 (95 % CI = 0.998-0.999). The ICC value of the eversion was 0.384 (95 % CI = 0.148-0.66) and after correction of the systematic error, 0.817 (95 % CI = 0.664-0.922). The agreement on footstrike was substantial with a Fleiss kappa of 0.737. The overall intra-rater reliability was excellent with an ICC value of 0.997 (95 % CI = 0.996-0.997). The intra-rater agreement of the footstrike was excellent with a Cohen's kappa of 0.868.
Significance: 2D video analysis provides a highly reliable, relative inexpensive, feasible and suitable measuring instrument for determining running variables in patients ERLP in a primary care setting. This simple technique may identify possible running variables associated with different types of ERLP and may serve as an instrument for tailor-made gait retraining programs.
Competing Interests: Declaration of Competing Interest None.
(Copyright © 2023 The Authors. Published by Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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