What question did this study set out to answer?

To validate a non-invasive under-mattress accelerometer system for measuring cardiorespiratory parameters during sleep and determine the optimal sensor placement relative to the body.

June 5, 2023SensorsOpen Access

Monitoring of Cardiorespiratory Parameters during Sleep Using a Special Holder for the Accelerometer Sensor

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Why the study?

Polysomnography is intrusive and expensive, creating a need for a non-invasive, unobtrusive home sleep monitoring system that reliably measures cardiorespiratory parameters.

Does an accelerometer-based under-mattress sensor accurately measure heart rate and respiratory rate during sleep in healthy subjects?

Key Points

To validate a non-invasive under-mattress accelerometer system for measuring cardiorespiratory parameters during sleep and determine the optimal sensor placement relative to the body.
Evaluated cardiorespiratory tracking across 23 healthy subjects (13 males and 10 females) using an accelerometer mounted in a specialized holder beneath the bed mattress.
Processed recorded ballistocardiogram signals sequentially using a sixth-order Butterworth bandpass filter followed by a moving average filter across various sleep positions.
Demonstrated overall mean absolute errors of 2.24 beats per minute for heart rate and 1.52 breaths per minute for respiratory rate compared to reference standards, independent of sleeping posture.
Reported heart rate errors of 2.28 beats per minute in males and 2.19 beats per minute in females, with respiratory rate errors of 1.41 breaths per minute in males and 1.30 breaths per minute in females.
Identified sensor placement directly beneath chest level as the preferred configuration for optimal measurement accuracy.

Structured PICO

Does an accelerometer-based under-mattress sensor accurately measure heart rate and respiratory rate during sleep in healthy subjects?

Population

23 healthy subjects (13 males and 10 females)

Intervention

Non-invasive cardiorespiratory parameter monitoring system based on an accelerometer sensor with a special holder installed under the bed mattress

Comparator

Reference values

Outcome

Average error of heart rate and respiratory rate compared to reference valuessurrogate

An under-mattress accelerometer sensor can measure heart rate and respiratory rate during sleep with low error rates in healthy subjects.

Limitations

Requires further studies in larger groups of subjects
Tested only in healthy subjects

Discussion

No takes yet. Share an insight, caveat, or question.

Implication

Accurate under-mattress monitoring is feasible in healthy sleepers; leaves open validation in patients and clinical settings.

Cite This Study

Boiko et al. (2023) studied this question.

synapsesocial.com/papers/6a8bb3e4de5ec4e001e3cf6e https://doi.org/10.3390/s23115351

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Monitoring of Cardiorespiratory Parameters during Sleep Using a Special Holder for the Accelerometer Sensor

Key Points

Structured PICO

Limitations

Discussion

Implication

Cite This Study

Monitoring of Cardiorespiratory Parameters during Sleep Using a Special Holder for the Accelerometer Sensor

Key Points

Structured PICO

Limitations

Discussion

Implication

Cite This Study

Also Consider

Also Consider