CEPHALIC PRESENTATION AND POSTURE RECORDING DEVICE FOR DAILY LIVING ACTIVITY

摘要

PROBLEM TO BE SOLVED: To easily and electrically record the postures of the head and trunk of a subject during the course of daily living of the subject with a small-size lightweight device. SOLUTION: Two gravitational acceleration sensors A and B installed to spectacles are fixed to the head of the subject so that the sensitivity axes of the sensors A and B may become coincident with rotations in the sagittal and coronal plane and the posture of the head is electrically recorded as an inclined angle from the vertical line. When a similar combination of sensors C and D is installed to the backside of the neck, etc., of the subject as an expanded example, the posture changes of the head and trunk of the subject can be recorded individually.