Classification of lying position using load cells under the bed

Biomedical Engineering department, Oregon Health & Science University.3303 SW Bond Avenue, Portland, OR 97239, USA.
Conference proceedings: ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference 08/2011; 2011:474-7. DOI: 10.1109/IEMBS.2011.6090068
Source: PubMed


Individuals who suffer from acid reflux at night, who snore chronically, or who have sleep apnea are frequently encouraged to sleep in a particular lying position. Side sleeping decreases the frequency and severity of obstructive respiratory events (e.g. apnea and hypopnea) in patients with positional sleep apnea. It has been suggested that individuals with Gastroesophageal Reflux Disease sleep on their left sides in order to help minimize symptoms. In this paper, we present a method of predicting the position of an individual lying on the bed using load cells placed under each of the bed supports. Our results suggest that load cells utilized in this manner could be successfully implemented into a system that tracks or helps train individuals to sleep in a particular lying position.

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    • ") (Kurihara and Watanabe, 2012aWatanabe et al., 2005) (Kambayashi and Hagiwara, 2012Okada, et al., 2008) (Harper, et al., 1987) (2008) (, 1998) cm (Beattie, et al., 2011) (Guo, et al., 2012) "
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    • "Load cell data can be collected continuously without interfering with the patient or their sleep. Load cells have been used in our laboratory to assess sleep hygiene [10], classify lying position [11], and to distinguish normal respiration from disordered breathing [12]. We have also developed a system that allows detection of body movement, i.e., identification of the time intervals when a movement in bed occurs [13]. "
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