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Alterations in Respiration II01:30

Alterations in Respiration II

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There are numerous types of normal and abnormal respiration. Based on ventilatory movements, breathing patterns are classified as regular, deep, or shallow. Examples include Biot's breathing, Cheyne-Stokes respiration, Kussmaul's breathing, hyperventilation, and hypoventilation. Each pattern is clinically significant and aids in evaluating patients.
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Breathing is primarily an involuntary activity regulated by the brainstem respiratory centers. However, it can also be consciously controlled, allowing us to hold our breath or take deeper breaths when needed. This voluntary control is facilitated by the cerebral motor cortex, which bypasses the medullary centers to stimulate the respiratory muscles directly.
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Physical Assessment of the Respiratory Tract II: Inspection01:27

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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.
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Factors Affecting Respiration01:24

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Respiration is a crucial physiological function involving exchanging oxygen (O2) and carbon dioxide (CO2) between an organism and its environment. Various factors can impact this essential process:
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Assessing the respiratory rate and rhythm for a complete minute is crucial for evaluating the breathing pattern. Even a minor increase in the patient's average respiratory rate, by as little as three to five breaths per minute, is an early and vital indicator of respiratory distress. Patients with a respiratory rate exceeding twenty-four breaths per minute require close monitoring to determine the physiological alterations. This careful observation is essential for prompt recognition and...
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Besides the pressure difference between the external environment and the lungs, the airflow rate and ease of pulmonary ventilation are also influenced by three other factors: surface tension of the fluid in the alveoli, compliance of the lungs, and airway resistance.
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Updated: Jun 19, 2025

Investigation into Deep Breathing through Measurement of Ventilatory Parameters and Observation of Breathing Patterns
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Breathing pattern changes in response to bronchoconstriction in physically active adults.

John W Dickinson1, Carol M E Smyth1, Samantha L Winter2

  • 1School of Sport and Exercise Sciences, University of Kent, Canterbury, Kent, UK.

The Journal of Asthma : Official Journal of the Association for the Care of Asthma
|July 26, 2024
PubMed
Summary
This summary is machine-generated.

Opto-Electronic Plethysmography (OEP) can identify distinct breathing patterns associated with Exercise-Induced Bronchoconstriction (EIB). This technology differentiates EIB breathing from healthy individuals and between bronchoconstriction and recovery phases.

Keywords:
Breathing pattern disorderexercisephase anglerespiratory assessment

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Area of Science:

  • Respiratory Physiology
  • Biomechanics
  • Medical Technology

Background:

  • Exercise-Induced Bronchoconstriction (EIB) significantly impacts respiratory mechanics during physical activity.
  • Accurate assessment of breathing patterns is crucial for understanding and managing EIB.
  • Opto-Electronic Plethysmography (OEP) offers a non-invasive method to quantify chest wall movements.

Purpose of the Study:

  • To evaluate the capability of Opto-Electronic Plethysmography (OEP) in distinguishing breathing patterns specific to Exercise-Induced Bronchoconstriction (EIB).
  • To compare breathing patterns between individuals with and without EIB.
  • To differentiate breathing patterns during bronchoconstriction versus recovery in individuals with EIB.

Main Methods:

  • Participants included healthy individuals (n=47) and those with EIB (n=10) identified via Eucapnic Voluntary Hyperpnea test.
  • OEP data was collected using 89 markers and an 11-camera motion capture system at 100 Hz.
  • Breathing patterns were analyzed for regional contribution, timing, and inter-compartment phase differences.

Main Results:

  • Phase differences between ribcage and shoulder movements (RCpRCa-Phase, RCaS-Phase, RCpS-Phase) were significantly altered during bronchoconstriction compared to rest in EIB individuals (p < 0.05).
  • Greater asynchrony and delayed abdominal ribcage movement were observed post-bronchoconstriction.
  • RCpS-Phase demonstrated significant differences across all conditions (rest, post-bronchoconstriction, post-inhaler) in the EIB group (p < 0.05).

Conclusions:

  • Opto-Electronic Plethysmography (OEP) effectively characterizes breathing patterns associated with EIB.
  • OEP can distinguish EIB-related breathing abnormalities from those of healthy individuals at rest.
  • OEP provides a valuable tool for assessing respiratory changes during EIB events.