ACURÁCIA DO SISTEMA MOVA3D PARA ANÁLISE CINEMÁTICA DE TRONCO, CABEÇA E MEMBROS SUPERIORES: UM ESTUDO COMPARATIVO COM PADRÃO OURO QUALISYS TRACK MANAGER

Abstract

Introduction: Kinematic analysis is a tool used by physical education professionals, neurologists, orthopedists and physiotherapists. The gold standard for kinematic evaluation in 3 dimensions (3D) is optoelectronic equipment. Such systems are difficult to access, so new research has been carried out to develop alternative resources for movement scientists. Objective: To evaluate the degree of association and the mean absolute error of the MOVA3D system compared to the Qualisys Track Manager for kinematic assessment of the upper limbs, trunk and head. Methods: This is a cross-sectional observational study with a comparative method. It was carried out in the Movement Analysis Laboratory at the Campo Grande Association of Parents and Friends of the Disabled (APAE/CG). Thirty healthy adults were assessed using the Qualisys Track Manager and MOVA3D websites concurrently. The angular variation in each joint was calculated and the results were compared between the systems by calculating the mean absolute error, Pearson's correlation coefficient and the Student's t-test. Results: The MOVA3D showed a mean absolute angular error of between 2.61º and 21.35º, depending on the variable and plane assessed. There was a statistically significant difference between the measurements taken in the different planes for all the variables tested. A moderate correlation was found between the systems only for the shoulder flexion variable (CI=0.511). Conclusion: The average error observed is within acceptable limits, except for trunk flexion. However, only the shoulder flexion variable showed a moderate correlation between the systems. Adjustments are still needed so that MOVA3D can be validated in relation to QTM.