Reliability of a close-range photogrammetry technique to measure ankle kinematics during active range of motion in place |
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| Institution: | 1. Physical Therapy Department, Faculdade de Ciências Biológicas e da Saúde, Universidade Federal dos Vales do Jequitinhonha e do Mucuri (UFVJM), Diamantina, Minas Gerais, Brazil;2. Programa de Pós Graduação em Reabilitação e Desempenho Funcional, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Diamantina, Minas Gerais, Brazil;3. Laboratório de Prevenção e Reabilitação de Lesões Esportivas (LAPREV), Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil;4. Minas Tenis Clube, Belo Horizonte, Minas Gerais, Brazil;1. Division of Foot and Ankle Surgery, Department of Orthopaedic Surgery, University of Virginia Health System, PO Box 801016 Charlottesville, VA, USA;2. University of Virginia School of Medicine, UVA School of Medicine, Office of Financial Aid Box 800730, Charlottesville, VA 22908-0730, USA;1. Biomechanics Laboratory, Federal University of Santa Catarina, Florianópolis, 88.040-900, Brazil;2. Health Sciences Department, School of Science, Technology and Health, Federal University of Santa Catarina, Araranguá, 88.906-072, Brazil;3. Physical Eduaction Department, School of Sports, Federal University of Santa Catarina, Florianópolis, 88.040-900, Brazil;4. Morphological Sciences Department, School of Biological Sciences, Federal University of Santa Catarina, Florianópolis, 88.040-900, Brazil |
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| Abstract: | BackgroundAs the risk of ankle turn during daily activity is very high, studying ankle kinematics in place is important for ankle sprain prevention. The close-range photogrammetry (CRP) technique is used to measure ankle kinematics during active range of motion (AROM) in place. The purpose of the study was to assess the reliability of CRP to measure ankle kinematics.MethodsTwenty adults were recruited and fourteen retro-reflective targets were mounted on the skin of their right feet. Imaging sensors were self-calibrated using a bundle adjustment technique, and the images were downloaded with Australis photogrammetric software. Three trials were conducted and reliability coefficients were used to assess agreement between them.ResultsReliability was almost perfect and the results show that the intraclass correlation coefficient (ICC) of ankle angle values were (dorsiflexion = 0.96), (plantarflexion = 0.81), (inversion = 0.92), (eversion = 0.95), (internal rotation = 0.92), and (external rotation = 0.78). The overall intraclass correlation coefficient was 0.89 and the standard error of the measurement (SEM) values ranged from (0.37° to 6.18°).ConclusionsThe results indicate that the CRP technique was able to reliably measure ankle kinematics. The results may support and enhance knowledge related to ankle AROM in the clinical arena. |
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| Keywords: | Ankle Close-range photogrammetry Reliability Range of motion Tri-planar |
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