UTILIZATION OF INERTIAL MEASUREMENT UNIT SENSORS AND OPENSIM FOR RECONSTRUCTING WALKING MOTION
Continuous human motion analysis allows for the detection of diseases and their complications, aiding in treatment decision-making. One tool in the field of biomechanics that can be used is the Inertial Measurement Unit (IMU). IMUs can measure rotational angles, angular velocity, linear accelerat...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/86478 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Continuous human motion analysis allows for the detection of diseases and their
complications, aiding in treatment decision-making. One tool in the field of biomechanics
that can be used is the Inertial Measurement Unit (IMU). IMUs can measure rotational angles,
angular velocity, linear acceleration, temperature, and, in some cases, magnetic fields, which
provide information for human motion analysis. This study aims to reconstruct walking
motion in the OpenSim software using three IMU sensors.
The study involved 5 subjects aged 18-59 years who were not injured and had no foot
abnormalities. The subjects performed walking movements on a treadmill. Markers were
placed on the subjects using a 19-marker Helen Hayes Lower configuration. The study used
8 Optitrack PrimeX 13 cameras and 3 IMU sensors. This study takes data from only one
subject which will be processed and analyzed using OpenSim software.
Data processing and RMSE calculations were performed in this study. The RMSE
value between the knee joint angles from the IMU sensor and OptiTrack was 4.56°. Three
IMU sensors were not sufficient to reconstruct walking motion in the OpenSim software. The
results obtained in OpenSim also did not accurately represent walking motion and walking
kinematic parameters.
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