Automatic sleep stage classification based on easy to register signals as a validation tool for ergonomic steering in smart bedding systems.

Ergonomic sleep studies benefit from long-term monitoring in the home environment to cope with daily variations and habituation effects. Polysomnography allows to asses sleep accurately, but is costly, time-consuming and possibly disturbing for the sleeper. Actigraphy is cheap and user friendly, but...

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Publicado en:Work Vol. 41; pp. 1985 - 1990
Autores principales: Soares, Marcelo M., Jacobs, Karen, Willemen, Tim, Van Deun, Dorien, Verhaert, Vincent, Pirrera, Sandra, Exadaktylos, Vasileios, Verbraecken, Johan, Haex, Bart, Sloten, Jos Vander
Formato: research tables/charts Journal Article
Publicado: Sage Publications Inc. 2012 Supplement
Acceso en línea:Ver este registro en EBSCOhost
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      pub: Sage Publications Inc.
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        atl: Automatic sleep stage classification based on easy to register signals as a validation tool for ergonomic steering in smart bedding systems.
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        au:
          Soares, Marcelo M.
          Jacobs, Karen
          Willemen, Tim
          Van Deun, Dorien
          Verhaert, Vincent
          Pirrera, Sandra
          Exadaktylos, Vasileios
          Verbraecken, Johan
          Haex, Bart
          Sloten, Jos Vander
        affil: Division of Biomechanics, Katholieke Universiteit Leuven, Celestijnenlaan 300C, 3001 Heverlee, Belgium
      sug:
        subj:
          Human
          Heart Rate
          Respiratory Rate
          Movement
          Algorithms
          Home Environment
          Polysomnography
          Experimental Studies
          Ergonomics
          Biophysiological Methods
          Prospective Studies
          Belgium
          Adult
          Sensitivity and Specificity
          Beds and Mattresses
          Funding Source
          Adult: 19-44 years
      ab: Ergonomic sleep studies benefit from long-term monitoring in the home environment to cope with daily variations and habituation effects. Polysomnography allows to asses sleep accurately, but is costly, time-consuming and possibly disturbing for the sleeper. Actigraphy is cheap and user friendly, but for many studies lacks accuracy and detailed information. This proof-of-concept study investigates Least-Squares Support Vector Machines as a tool for automatic sleep stage classification (Wake-N1-Rem to N2-N3 separation), using automatic trainingset-specific filtered features as derived from three easy to register signals, namely heart rate, breathing rate and movement. The algorithms are trained and validated using 20 nights out of a 600 night database from over 100 different healthy persons. Different training and test set strategies were analyzed leading to different results. The more person-specific the training nights to the test nights, the better the classification accuracy as validated against the hypnograms scored by experts from the full polysomnograms. In the limit of complete person-specific training, the accuracy of the algorithm on the test set reached 94%. This means that this algorithm could serve its use in long-term monitoring sleep studies in the home environment, especially when prior person-specific polysomnographic training is performed.
      pubtype: Academic Journal
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        research
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        Journal Article
      ougenre: Article
    language: English
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