Respiratory Dynamics

Respiratory Dynamics

Long Term Adaptations

• increased minute vol.
• stronger respiratory muscles
• changes in lung vol.
• increased oxygen diffusion rate

Adaptations to Training

• Aerobic training places significant strain on the respiratory system

Part 2

Daily Respiratory

Dynamics

• sustained aerobic training produces adaptions that help the system to fulfill its role
• (no significant effect on the respiratory system)

• When exercising, the body will always demand more oxygen to function.

• As a result, more air will move in and out of the lungs within one minute as this demand increases

Internal Respiration

internal respiration

Part 1

• Internal respiration involves exchange of gases at tissue level

(extraction of O2 at tissues is increased)

2. Increase in partial pressure of carbon dioxide (PCO2)

3. Decrease in PH

4. Increase in temperature

1. Increase in partial pressure of oxygen (PO2) gradient

• At the level of the REST OF THE BODY

• Occurs as a result of four main factors

Breathing dynamics

Factors

• Increase of blood flow through the lungs (Q)

• Pulmonary ventilation (Ve)

• These two factors ensure that the partial pressures within the alveoli and the blood are maintained to accomplish a normal diffusion gradient. This gradient will lead to proper oxygenation of blood and removal of CO2

External Respiration

• The exchange of carbon dioxide in the body and oxygen in the environment.

• The increase in external gas exchange is the result of two main factors:

Phases of Pulmonary Ventilation

Part 3:

• There are three phases of pulmonary ventilation during exercise

Second Phase

Third Phase

First Phase

• In the first phase, the amount of air that is moved into the body is increased at a drastic rate.

• The Pulmonary Ventilation of an individual starts to increase at a slow, exponential rate

• During this phase, the pulmonary ventilation of an individual will start to increase at a steady rate

• Pulmonary Ventilation refers to the amount of air that is moved within the lungs in one minute.

Asthma

Respiratory Disease

• Asthma is a respiratory disease characterized by the following:

Chronic obstructive Pulmonary Disease

- Spasms of the smooth muscle tissue that line the respiratory tract.

-over secretion of mucous

-swelling of the cells lining the respiratory tract

• Used to describe a family of diseases which lead to a dramatic reduction of airflow through the respiratory system.

Part 4:

• This results in Dyspnea and wheezing sounds during breathing

• Much harder to relieve symptoms via the use of medications as apposed to Asthma

• most cases of asthma can be controlled by use of medications such as corticosteroids

• Usually chronic and makes it much harder for patients to resume everyday life comfortably as apposed to asthma.

QUIZ

Increases at a steady pace

2. What is external respiration also referred to as?

False

Change of gases between the environment and body.

4. What are the three factors that contribute to asthma?

1. What is the third phase of pulmonary ventilation?

1. Uncontrollable spasms of the smooth muscle that lies on the respiratory tract.

2. Over secretion of mucous in the alveoli

3. Swelling of the cells lining the respiratory tract

T or F: An increase in PH level within the body is the result of an increase in internal respiration.