Population
Healthy subjects (experiment detailed for a 22-year-old male, with mention of 5 subjects total)
Comparison
Unconstrained and noninvasive measurement system… vs Previous measurement system using separate…
Authors
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May enhance unconstrained respiration monitoring accuracy; leaves open clinical validation before practice adoption.
A new signal processing method for an acoustic sensor in an air pillow improves the accuracy of noninvasive, unconstrained respiration and heartbeat monitoring, especially during weak respiration.
Matsubara et al. (2004) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: