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Conf Proc IEEE Eng Med Biol Soc. 2009;2009:3921-4. doi: 10.1109/IEMBS.2009.5333548.

Classification of breathing events using load cells under the bed.

Author information

  • 1Oregon Health & Science University, Portland, 97239, USA. beattiez@bme.ogi.edu

Abstract

Sleep disturbances are prevalent, financially taxing, and have a negative effect on health and quality of life. One of the most common sleep disturbances is obstructive sleep apnea-hypopnea syndrome (OSAHS) which frequently goes undiagnosed. The gold standard for diagnosing OSAHS is polysomnography (PSG)-a procedure that is inconvenient, time-consuming, and interferes with normal sleep patterns. We are investigating an alternative to PSG in which unobtrusive load cells fitted under the bed are used to monitor movement, heart rate, and respiration. In this paper we describe how load cell data can be used to distinguish between clinically relevant disordered breathing (apneas and hypopneas) and normal respiration. The method correctly classified disordered breathing segments with a sensitivity of 0.77 and a specificity of 0.91.

PMID:
19964321
[PubMed - indexed for MEDLINE]
PMCID:
PMC3400543
Free PMC Article
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