Related Experiment Video
Updated: Mar 23, 2026
08:34
Investigation into Deep Breathing through Measurement of Ventilatory Parameters and Observation of Breathing Patterns
Published on: September 16, 2019
12.2K
New Respiratory Inductive Plethysmography (RIP) Method for Evaluating Ventilatory Adaptation during Mild Physical
Yann Retory1,2,3, Pauline Niedzialkowski3, Carole de Picciotto3
1U1179 Inserm, End:icap, Laboratoire de Physiologie TITAN, Montigny-le-Bretonneux, France.
Plos One
|March 24, 2016
Summary
A new respiratory inductive plethysmography (RIP) method accurately measures tidal breathing without a mouthpiece. This validated technique combines thoracic RIP and nasal pressure signals, proving reliable during rest and mild physical activity.
Area of Science:
- Respiratory Physiology
- Biomedical Engineering
- Medical Instrumentation
Background:
- Pneumotachometers (PT) are standard for tidal breathing measurement but alter spontaneous ventilation due to mouthpiece use.
- Respiratory inductive plethysmography (RIP) offers non-invasive measurement but faces challenges with motion artifacts.
- Existing RIP methods require further validation for accuracy during varying physical conditions.
Purpose of the Study:
- To develop and validate a novel RIP method using thoracic RIP and nasal pressure signals.
- To address and mitigate motion artifacts in thoracic RIP signals during physical activity.
- To compare the accuracy of the new RIP method against a calibrated pneumotachometer for tidal ventilation measurement.
Main Methods:
- A custom time-domain algorithm was developed to filter artifacts from thoracic RIP signals.
- Nasal pressure signals were combined with filtered thoracic RIP data.
- The new RIP method was validated against a pneumotachometer in 30 volunteers during rest and walking.
Main Results:
- Highly significant correlations were found between the new RIP method and PT for tidal volume (Vt), inspiratory time (Ti), and expiratory time (Te).
- Low bias was observed for Vt (0.04 L) and Ti (0.02 s), with acceptable bias for Te (<0.1 s).
- Statistically significant correlations were also found for Ti/Ttot and Vt/Ti ratios between the two methods.
Conclusions:
- The developed thoracic RIP methodology, incorporating artifact filtering and a specific calibration procedure, accurately measures tidal ventilation.
- This validated RIP technique is suitable for assessing tidal ventilation changes at rest and during mild to moderate physical activity.
- The findings support the use of this advanced RIP system as a reliable alternative to traditional methods for respiratory monitoring.
More Related Videos
Related Concept Videos
01:20Assessment of Ventilation I: Respiratory Rate
2.6K
Assessment of Ventilation
A Ventilation assessment is critical for monitoring a patient's health status. Respiration, one of the most accessible vital signs, provides insights into the function of numerous body systems and can indicate serious health issues, such as brainstem injuries from head trauma.
Critical Guidelines for Assessing Ventilation:
A Ventilation assessment is critical for monitoring a patient's health status. Respiration, one of the most accessible vital signs, provides insights into the function of numerous body systems and can indicate serious health issues, such as brainstem injuries from head trauma.
Critical Guidelines for Assessing Ventilation:
2.6K
01:29Assessment of Ventilation II: Respiratory Depth and Rhythm
2.8K
Respiratory Depth
Respiratory depth measures the volume of air inhaled or exhaled during a breath. It can vary from shallow to deep and typically remains consistent when a person is at rest or asleep. Occasionally, individuals will automatically inhale deeply, known as sighing, which inflates the lungs with more air than normal breathing.
To assess respiratory depth, observe the degree of chest excursion or movement:
Respiratory depth measures the volume of air inhaled or exhaled during a breath. It can vary from shallow to deep and typically remains consistent when a person is at rest or asleep. Occasionally, individuals will automatically inhale deeply, known as sighing, which inflates the lungs with more air than normal breathing.
To assess respiratory depth, observe the degree of chest excursion or movement:
2.8K
01:14Ventilatory Modes
2.0K
Mechanical ventilators are life-saving devices that support or replace spontaneous breathing. They deliver breaths to patients through varying methods known as ventilator modes. Understanding these modes is critical for healthcare providers managing patients with respiratory failure.
There are three ventilatory modes: full support, partial support, and spontaneous. These are described below.
Full Support Modes
Full support modes include controlled mechanical ventilation, continuous mandatory...
There are three ventilatory modes: full support, partial support, and spontaneous. These are described below.
Full Support Modes
Full support modes include controlled mechanical ventilation, continuous mandatory...
2.0K
01:29Mechanical Ventilation I: Indication and Settings
3.6K
Mechanical ventilation is a life-saving technique for managing acute respiratory failure and other respiratory complications. The process involves using a machine known as a ventilator to supply oxygen to the lungs and assist in removing carbon dioxide. It serves as a bridge to long-term mechanical ventilation or a temporary measure until ventilatory support is discontinued. The ventilator can maintain this function for a prolonged period, providing critical support for patients until they can...
3.6K
01:19Respiratory Assessment: Purpose and Indications
2.0K
Respiratory assessment is a cornerstone of nursing assessments, crucial for the early detection of patient deterioration. This evaluation transcends routine procedures, representing a critical skill nurses must master to ensure optimal patient care.
Objectives and Importance:
The primary goal of respiratory assessment is to evaluate patients at early risk of clinical deterioration. Since respiratory distress often precedes other signs of declining health, breathing patterns and sounds become a...
Objectives and Importance:
The primary goal of respiratory assessment is to evaluate patients at early risk of clinical deterioration. Since respiratory distress often precedes other signs of declining health, breathing patterns and sounds become a...
2.0K
01:27Physical Assessment of the Respiratory Tract II: Inspection
1.2K
Physical assessment of the respiratory tract through inspection is a crucial step in understanding the patient's respiratory health. It provides insights into the functioning of the respiratory system, the musculoskeletal structure, and even the patient's nutritional status. This comprehensive approach involves observing several vital aspects: chest configuration, breathing patterns, respiratory rates, skin color, and use of accessory muscles.
Chest Configuration
The chest configuration...
Chest Configuration
The chest configuration...
1.2K