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( Tiejun Miao ),( Xiaodong Yuan ),( Pingshu Zhang ),( Jun Song ) 한국감성과학회 2019 한국감성과학회 국제학술대회(ICES) Vol.2019 No.-
Healthy adults and patients with history of breathing disorders and stroke were enrolled in this clinical study and underwent simultaneous test by polysomnography (PSG). The present study analyzed fluctuation in vital signs and movement activity extracted from the multichannel ballistocardiographic signals based on piezo sensor distribution under bed mattress. We assessed the validity using contact less technology to screening obstructive sleep apnea and stroke. We found an agreement of apnea-hypopnea index (AHI) with the number of hypopneas estimated by our method. Also we found abnormal changes in body pressure distribution during sleep in patient having history of stroke. Mean area of distribution for stroke was 3.44±0.82 having significant lower values than ones without stroke who had value of 9.19±2.35.