Related Experiment Video

Updated: May 14, 2026

Multi-Modal Home Sleep Monitoring in Older Adults
07:40

Multi-Modal Home Sleep Monitoring in Older Adults

Published on: January 26, 2019

Thoraco-abdominal asynchrony in children during quiet sleep using Hilbert transform

Sarah Immanuel1, Mark Kohler, Yvonne Pamula

  • 1University of Adelaide, SA 5005, Australia. sarah.immanuel@adelaide.edu.au

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
|February 1, 2013
PubMed

Insights

We developed a Hilbert transform method to measure thoraco-abdominal asynchrony (TAA) using breathing signals. Sleep position significantly impacts TAA in children during non-REM sleep.

Area of Science:

  • Respiratory Physiology
  • Sleep Medicine
  • Biomedical Engineering

Background:

  • Thoraco-abdominal asynchrony (TAA) can indicate respiratory issues.
  • Quantifying TAA during sleep is crucial for understanding breathing patterns.
  • Existing methods may lack precision or ease of use.

Purpose of the Study:

  • To introduce a novel Hilbert transform-based technique for quantifying TAA.
  • To investigate the influence of sleep stages and positions on TAA in healthy children.
  • To validate the Hilbert transform as a tool for respiratory inductive plethysmography (RIP) signal analysis.

Main Methods:

  • Utilized respiratory inductive plethysmography (RIP) signals during overnight polysomnography (PSG).
  • Applied Hilbert transform to calculate phase shift between ribcage (RC) and abdominal (AB) signals.
  • Analyzed 30-second epochs from 40 healthy children across different sleep stages and positions (supine, lateral).

Main Results:

  • A statistically significant effect of sleep position on TAA was observed in all non-REM sleep stages.
  • The Hilbert transform method effectively quantified TAA from RIP data.
  • Breathing patterns showed variations related to sleep position.

Conclusions:

  • The Hilbert transform offers a straightforward and effective method for TAA quantification.
  • Sleep position is a significant factor influencing thoraco-abdominal coordination in children during sleep.
  • This technique can aid in the analysis of respiratory patterns during sleep studies.

More Related Videos

Measuring Cardiac Autonomic Nervous System (ANS) Activity in Children09:45

Measuring Cardiac Autonomic Nervous System (ANS) Activity in Children

Published on: April 29, 2013

Home-Based EEG Hyperscanning for Infant-Caregiver Social Interactions08:08

Home-Based EEG Hyperscanning for Infant-Caregiver Social Interactions

Published on: May 31, 2024

Related Concept Videos

Stages of Sleep01:22

Stages of Sleep

Sleep progresses through distinct stages, each characterized by specific brain wave patterns and physiological responses ranging from wakefulness to stages of non-rapid eye movement, known as non-REM, to rapid eye movement, referred to as REM. Understanding these stages helps in recognizing how sleep supports various bodily and cognitive functions.
Before sleep begins, in wakefulness, the brain exhibits primarily beta waves, which are high in frequency and low in amplitude, indicating alertness...
REM Sleep Behavior Disorder01:15

REM Sleep Behavior Disorder

REM Sleep Behavior Disorder (RBD) is a sleep disorder characterized by the absence of muscle paralysis that normally occurs during the REM phase of sleep. This absence allows individuals to physically act out their dreams, which are often vivid and disturbing. Common behaviors exhibited during episodes include kicking, punching, and yelling. These actions can be dangerous, potentially leading to injuries for the person with RBD or their bed partner.
RBD is significantly associated with...
Sleep Apnea01:21

Sleep Apnea

Sleep apnea is a condition where breathing stops intermittently during sleep, often leading to significant health issues. Each episode can last from 10 to 20 seconds or more and is frequently accompanied by a brief arousal from sleep. This disturbance, largely unnoticed by the individual, can lead to severe daytime fatigue. Commonly, individuals seek help after being informed by their partners about loud snoring and noticeable breathing pauses during sleep.
The condition is more prevalent among...
Holter Monitor: 24-Hour Monitoring01:23

Holter Monitor: 24-Hour Monitoring

Holter monitoring is a continuous electrocardiography (ECG) recording that tracks the heart's electrical activity over an extended period, generally 24 to 48 hours. This noninvasive diagnostic tool detects irregular heart rhythms that may not be captured during a standard ECG performed in a clinical setting.DeviceThe Holter monitor is a portable, small device connected to several electrodes on the patient's chest. These electrodes detect the heart's electrical signals and transmit them to the...