PMID: 11604853Oct 18, 2001Paper

Ambulatory monitoring of behavior in daily life by accelerometers set at both-near-sides of the joint

Studies in Health Technology and Informatics
M MakikawaR Tokue

Abstract

In this paper we examined a new joint motion monitoring method by use of accelerometers to monitor subjects' detailed motion in daily activities. In this method two accelerometers are set at as near points of both sides around the joint as possible. The difference between these two sensors' outputs mainly depend on the joint angle because the centrifugal and the turning acceleration occurred by the rotation around the joint can be neglected. In the experiments we tried to monitor various subject's behaviors of his upper and lower extremities and whole body motion, and could show this method is useful for the ambulatory monitoring of behavior in daily life.

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