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Related Concept Videos

Mechanism of Breathing II: Expiration01:23

Mechanism of Breathing II: Expiration

The Physiology of Expiration: A Seamless Respiratory Process
Expiration, or exhaling, is a complex physiological process that begins as the inspiratory muscles begin to relax. This relaxation triggers a series of events that epitomize the efficiency of the respiratory system.
Mechanism of Expiration:
Other Factors Affecting Respiration Centers01:17

Other Factors Affecting Respiration Centers

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.
However, the ability to hold one's breath voluntarily is not limitless. When the CO2 concentration in the blood reaches a critical level,...
Breathing01:05

Breathing

The process of breathing, inhaling and exhaling, involves the coordinated movement of the chest wall, the lungs, and the muscles that move them. Two muscle groups with important roles in breathing are the diaphragm, located directly below the lungs, and the intercostal muscles, which lie between the ribs. When the diaphragm contracts, it moves downward, increasing the volume of the thoracic cavity and creating more room for the lungs to expand. When the intercostal muscles contract, the ribs...
Mechanism of Breathing I: Inspiration01:30

Mechanism of Breathing I: Inspiration

Introduction to Inspiration: The Respiratory System in Action
The respiratory system, an essential network for breathing, comprises the conducting and respiratory zones, each playing a crucial role in the overall process of respiration. Let us explore the detailed mechanism of inspiration, or inhalation, which is the first phase of the respiratory cycle.
Pathway of Air during Inspiration
During inspiration, air enters our body through the nose or mouth and moves through the conducting zone,...
Physiological Control of Respiration01:23

Physiological Control of Respiration

Introduction
Breathing, a seemingly passive process, is regulated by the respiratory center in the brainstem. This center coordinates the involuntary control of respirations, which means it occurs without conscious effort, ensuring a smooth and uninterrupted pattern.
Regulation of Ventilation
The body maintains ventilation by monitoring levels of carbon dioxide (CO2), oxygen (O2), and hydrogen ion concentration (pH) in the arterial blood. Among these factors, the level of CO2 plays a crucial...
Mechanism of Breathing III: The Accessory Muscles01:21

Mechanism of Breathing III: The Accessory Muscles

The Role of Accessory Muscles in the Respiratory System
The respiratory system is a complex network that relies on primary respiratory muscles like the diaphragm, but also involves accessory muscles to enhance lung expansion and airflow during both inhalation and exhalation.
Enhancing Inhalation with Accessory Muscles:
Accessory muscles such as the sternocleidomastoid, scalene, intercostal, and abdominal muscles are crucial when additional respiratory effort is required, such as during deep...

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A Modified Lean and Release Technique to Emphasize Response Inhibition and Action Selection in Reactive Balance
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Breath control during a tiptoe task.

Eric M Lamberg1, Marshall Hagins

  • 1Department of Physical Therapy, Stony Brook University , Stony Brook, NY , USA and.

Physiotherapy Theory and Practice
|September 12, 2013
PubMed
Summary
This summary is machine-generated.

Breathing patterns change during postural challenges. Individuals inhale during ascent, hold breath during balance challenges, and exhale during descent, potentially improving lumbar spine stability.

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Area of Science:

  • Biomechanics
  • Respiratory Physiology
  • Spinal Control

Background:

  • Understanding the relationship between respiration and lumbar segmental control is crucial for addressing spinal stability.
  • Postural challenges, such as maintaining balance, may influence respiratory strategies.
  • Functional tasks require integrated control of breathing and posture.

Purpose of the Study:

  • To investigate the relationship between inhaled volume changes and mechanical challenges to spinal stability during a tiptoe task.
  • To determine if respiration timing and magnitude are linked to postural control during a functional activity.
  • To explore how breathing strategies adapt to maintain balance during a challenging task.

Main Methods:

  • Thirty healthy participants performed a tiptoe task involving ascent, hold, and descent phases.
  • Airflow rate and inhaled volume (normalized to vital capacity, %VC) were continuously recorded.
  • Data were analyzed using repeated measures analysis of variance to identify significant effects.

Main Results:

  • Significant main effects for airflow rate (p < 0.001) and %VC (p < 0.001) were observed.
  • Participants inspired and increased %VC during the ascent phase.
  • Breath-holding and maintained %VC occurred during the hold phase when balance was challenged, followed by exhalation during descent.

Conclusions:

  • Breathing strategies are predictably linked to postural challenges, with inspiration during ascent and breath-holding during balance maintenance.
  • These respiratory adjustments may contribute to enhanced lumbar spine stiffness and stability during functional tasks.
  • The findings support theories connecting breath control with improved spinal stability under mechanical stress.