Key result
A noninvasive pneumatics-based system reliably measured heart rates across various conditions, yielding signal-to-noise ratios ranging from 15.9 to 23.5 dB.
Why the study?
Can a noninvasive pneumatics-based system reliably measure heartbeat, respiration, and body movements in subjects in bed?
Population
13 subjects
Design
Other
Authors
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May enable contactless in-bed monitoring; leaves open prospective clinical validation before adoption.
Can a noninvasive pneumatics-based system reliably measure heartbeat, respiration, and body movements in subjects in bed?
A newly developed noninvasive pneumatic cushion system can reliably measure heart rate and respiration in bed without attaching sensors to the body.
Watanabe et al. (2005) studied this question. Noninvasive pneumatics-based system was evaluated on Signal-to-noise (S/N) ratio for heart rate measurement. A noninvasive pneumatics-based system reliably measured heart rates across various conditions, yielding signal-to-noise ratios ranging from 15.9 to 23.5 dB.
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