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versão impressa ISSN 0012-7353


CALLEJAS-CUERVO, Mauro; RUIZ-OLAYA, Andrés Felipe  e  GUTIERREZ, Rafael M.. Validation of an inertial sensor-based platform to acquire kinematic information for human joint angle estimation. Dyna rev.fac.nac.minas [online]. 2016, vol.83, n.197, pp.153-158. ISSN 0012-7353.

This paper shows the results of a set of experiments aimed t at calibrating and validating an inertial sensor-based motion capture system that is used to capture and analyze the elbow joint flexion/extension motion. An experimental platform was constructed that provides accurate angular position information for reference purposes. Results obtained have an average error of 2.14 degrees when the arm is guided by a servomotor that rotates at 1 radian per second. The system also has an RMSE of 3.3, 4.9, 6.4 and 7.7 degrees for speeds of 2, 3, 4 and 5 radians per second respectively. Results show that the errors are acceptable to use a kinematic information capture platform en with inertial sensors that is focused on monitoring the recovery of the motor function in the upper limbs through physical therapy.

Palavras-chave : Motion capture; biomechanical signals; inertial sensors; potentiometer; upper limb; telerehabilitation.

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