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This paper describes the classification of gait patterns among descending stairs, ascending stairs and level walking activities using accelerometers arranged in antero-posterior and vertical direction on the shoulder of a garment. Gait patterns in continuous accelerometer records were classified in two steps. In the first step, direct spatial correlation of(More)
Unique features of body segment kinematics in falls and activities of daily living (ADL) are applied to make automatic detection of a fall in its descending phase, prior to impact, possible. Fall-related injuries can thus be prevented or reduced by deploying fall impact reduction systems, such as an inflatable airbag for hip protection, before the impact.(More)
The purpose of this study is to investigate unique features of body segments in fall and activities of daily living (ADL) to make automatic detection of fall in its descending phase before the impact. Thus, fall-related injuries can be prevented or reduced by deploying feedback systems before the impact. In this study, the authors propose the following(More)
Wearable medical devices provide great convenience to the elderly for the monitoring of vital signs at home. This paper describes a novel long-term wearable vital signs monitoring system which can real-time measure physiological signs such as ECG, SpO<sub>2</sub> (saturation of arterial oxygen) and systolic blood pressure. The proposed device is easy to(More)
A novel micromachined electrode is designed and fabricated for a BSN-based vital signs monitoring system. Both theoretical calculation and ANSYS simulation show that buckling problem will not occur for the proposed microneedles during insertion process. The BSN-based vital signs routine monitoring system, which comprises of wireless mote, analog amplifier(More)
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