Flexo-extension analysis of the neck using artificial vision
| Autor: | Vicente, Kleber, Venegas, William, Vásconez, Christian L., Zambrano, Ivan |
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| Jazyk: | Spanish; Castilian |
| Rok vydání: | 2020 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| Popis: | In the treatment of cervical pain, several techniques that are commonly used cannot indicate the patient pain-intensity, but only can identify structural damage. The evaluation of this pain-intensity can be achieved analyzing the cervical joint kinematic variables of the three movements: flexo-extension, flexo-lateral and rotation. In this work we will study the reliability of the photogrametry technique through a low-cost camera, i.e., Kinect V1. The Kinect camera will acquire kinematic parameters of the flexo-extension movement from the neck joint. We will use artificial visionand depth/color image techniques to obtaining the trajectories of the technical (and anatomical) markers. A Kalman filter is employed to correct the continuous tracking of the technical markers to obtaining the spatial coordinates of each marker. The data is obtained from seven test-subjects, men and women physically healthy. The ages of the test-subjects are between 17 and 40 years. We compute the kinematic parameters of angular velocity, angular acceleration and angular displacement, associated with the spatial-coordinates of each technical marker. Then, we obtain the parameters of reliability and correlation between tests through the mean-standard error, the multiple-correlation index and the Pearson-correlation indexes, commonly used for clinical analysis. The high values of these correlation indexes let us to remark the reliability of our methodology. Comment: 8 pages, in Spanish, 6 figures |
| Databáze: | arXiv |
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