Video Posturography: A New Method for Evaluation of Dynamic Body Balance
Introduction: Body balance is essential in functional independence, in the performance of physical activity, and relates indirectly to affective and social relationships of human beings. Achieving a balanced posture or maintaining a stable position of the eyes, head, and trunk is only possible by a complex equilibrium system composed of the four sensory mechanisms (visual, auditory, proprioceptive, and vestibular).
Objective: To analyze, using the Unterberger-Fukuda Test, the body’s dynamic balance of healthy individuals and check whether the values for parameters designated as linear displacement, torticollis angle, and body spin are equivalent to the normal parameters obtained with the equipment VICON 370.
Methods: A total of 43 healthy individuals were subjected to the Unterberger-Fukuda Test, using a new device called SIVEC. The new system had to identify body points of reference (head, shoulders, hips, knees, hands, and feet) and thus analyze the parameters called linear displacement, body spin, and torticollis angle, for comparison with the system VICON 370.
Results: No statistical difference was observed for linear displacement (p = 0.1085), torticollis angle (p = 0.0615), and body’s spin (p = 0.4736).
Conclusion: The SIVEC system is able to capture body movements, if the individual does not present large displacement and great body spin. The parameters including body spin, linear displacement, and torticollis angle were statistically the same for both methods. (SIVEC × VICON 370).