Validity and reliability of video analysis to evaluate ankle proprioceptive reintegration during postural control |
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| Affiliation: | 1. Fédération Française de Handball, Creteil, France;2. Société Française des Masseurs-Kinésithérapeutes du Sport (SFMKS Lab), Pierrefite sur Seine, France;3. Université Savoie Mont-Blanc, Laboratoire Interuniversitaire de Biologie de la motricité EA 7424, 73000 Chambéry, France;4. Université de Bretagne Occidentale, Laboratoire de Traitement de l′Information Médicale, INSERM U1101 Brest, France;5. CHRU de Brest, Hôpital Morvan, Service de médecine Physique et de Réadaptation, Brest, France;1. Neuroscience Institute and Division of Neurosurgery, Department of Surgery, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa;2. Division of Orthopaedic Surgery, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa;3. Institute of Sport and Exercise Medicine Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa;1. Department of Chemical and Biomedical Engineering, West Virginia University, Morgantown, WV, USA;2. Department of Exercise Physiology, West Virginia University, Morgantown, WV, USA;1. Nevro Inc., Redwood City, CA, USA;2. Department of Physical Therapy, Indiana Wesleyan University, 4201 South Washington Street, Marion, IN 46953, USA;1. Universidade Federal de Minas Gerais, School of Physical Education, Physical Therapy and Occupational Therapy, Graduate Program in Rehabilitation Sciences, Brazil;2. Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Rehabilitation Medicine, Amsterdam Movement Sciences, de Boelelaan 1117, Amsterdam, The Netherlands;1. Université Côte d’Azur, LAMHESS, Nice, France;2. Université Côte d’Azur, Centre Hospitalier Universitaire de Nice, Clinique Gériatrique du Cerveau et du Mouvement, Nice, France;3. Institut universitaire de France, France;4. Université Côte d''Azur, CNRS UMR 7284/INSERM U108, Institute for Research on Cancer and Aging Nice (IRCAN), Faculté de médecine, Nice, France;1. Fırat University, Faculty of Health Sciences, Department of Physiotherapy and Rehabilitation, 23119 Elazig, Turkey;2. Fırat University, Faculty of Medicine, Department of Anatomy, 23119 Elazig, Turkey;3. Fırat University, Faculty of Medicine, Department of Orthopedics, 23119 Elazig, Turkey |
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| Abstract: | BackgroundThe ability to dynamically reintegrate proprioceptive signals after they have been perturbated is impaired in certain pathologies. Evaluation of proprioceptive reintegration is useful for clinical practice but currently requires expensive laboratory tools. We developed a simple method, accessible to clinicians.Research question: Is two-dimensional (2D) video analysis of earlobe displacement a valid and reliable tool for the evaluation of ankle proprioceptive reintegration following muscle vibration?MethodsThirty-eight healthy individuals underwent vibration of the triceps surae while standing on a force plate (FP). Anterior (sagittal plane) earlobe displacement (‘overshoot’) was recorded at vibration cessation using 2D video analysis and rated by 3 blind examiners. Correlation analysis was performed between earlobe and center of pressure displacement (dCoP, recorded with the FP) to determine validity. Intra and interrater reliability were determined by calculation of the intraclass correlation coefficient (ICC), change in the mean (CiM), standard error of measurement (SEM) and the minimal detectable change (MDC).Results and significanceStrong positive correlations (r = 0.82–0.94, p < .001) were found between video and FP data. Intra- and interrater reliability were excellent (ICC from 0.99 to 1.00 and from 0.90 to 0.97 respectively). For intrarater analysis, the CiM was 0.01 cm, SEM were 0.27 cm (95% CI: 0.23–0.33) and 3.43% (95% CI: 2.92–4.20) and the MDC was 0.74 cm. For interrater reliability, the CiM ranged from − 0.81–0.55 cm, the SEM from 0.61 to 1.12 cm and the MDC from 1.69 to 3.10 cm. 2D video analysis of anterior (sagittal) earlobe displacement is therefore a valid and reliable method to assess postural recovery following muscle vibration. This simple method could be used by clinicians to evaluate the ability of the central nervous system to reintegrate proprioceptive signals from the ankle. Further studies are needed to assess its validity in individuals with proprioceptive impairment. |
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| Keywords: | Video analysis Reliability Sensory reweighting Ankle proprioception Muscle vibration Posture |
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