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A new method for analyzing human segment three-dimensional orientation is presented. A wearable sensor system based on triaxial accelerometers alone was developed, and later was tested on a thigh to calculate the pitch and yaw angles of the thigh with the accelerations captured by the system. Wearing the developed system, eight volunteer subjects walked in the work space of a high-accuracy camera...
A new method of measuring joint angle using a combination of 3D accelerometers and reaction force sensors is presented. Muscle motion is a common source of error to all body-mounted sensors. The effect of skin artefact was minimized based on the estimation of muscle motion measured using a new reaction force sensor banded with human body segment. The force sensor was designed using pressure sensitive...
This paper presents a novel approach only based on triaxial accelerometers for three-dimensional (3D) orientation of lower limb segment during real-time motion. With two coaxially placed triaxial accelerometers, the actual resultant acceleration signals containing the acceleration of gravity and lineal movement along each axis were obtained. The angle displacements for orientation of each segment...
This paper presents a study on quantitative dynamics analysis of human lower limb using developed wearable sensor systems that can measure reaction force and detect the following gait phases: initial contact, loading response, mid stance, terminal stance, pre-swing, initial swing, mid swing and terminal swing. Since conventional camera-based motion analysis system and reaction force plate system require...
A wearable sensory system for human lower extremity motion analysis is proposed, and an intelligent computation method for this sensory system is presented. The standard method for human motion analysis is the optical motion analysis using high-speed cameras to record human 3D motion, but this method is only limited in the laboratory research, because it requires expensive devices, large space and...
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