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Respiration During Exercisejemmett/4340/4340-Pulmonary.pdf · Respiration During Exercise Chapter...

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Respiration During Exercise Chapter 10
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Page 1: Respiration During Exercisejemmett/4340/4340-Pulmonary.pdf · Respiration During Exercise Chapter 10. Terms Ventilation Respiration Pulmonary respiration Cellular respiration. Ventilation

Respiration During Exercise

Chapter 10

Page 2: Respiration During Exercisejemmett/4340/4340-Pulmonary.pdf · Respiration During Exercise Chapter 10. Terms Ventilation Respiration Pulmonary respiration Cellular respiration. Ventilation

Terms

Ventilation

Respiration

Pulmonary respiration

Cellular respiration

Page 3: Respiration During Exercisejemmett/4340/4340-Pulmonary.pdf · Respiration During Exercise Chapter 10. Terms Ventilation Respiration Pulmonary respiration Cellular respiration. Ventilation

Ventilation

Inspiration

Diaphragm (rest and exercise)

External intercostal muscles (exercise)

Others (exercise)

Expiration

Internal intercostal muscles (exercise)

Abdominal muscles (exercise)

FYI

FYI

Page 4: Respiration During Exercisejemmett/4340/4340-Pulmonary.pdf · Respiration During Exercise Chapter 10. Terms Ventilation Respiration Pulmonary respiration Cellular respiration. Ventilation
Page 5: Respiration During Exercisejemmett/4340/4340-Pulmonary.pdf · Respiration During Exercise Chapter 10. Terms Ventilation Respiration Pulmonary respiration Cellular respiration. Ventilation

Structure of the Respiratory System

Conducting Zone

Respiratory Zone

Alveoli

FYI

Page 6: Respiration During Exercisejemmett/4340/4340-Pulmonary.pdf · Respiration During Exercise Chapter 10. Terms Ventilation Respiration Pulmonary respiration Cellular respiration. Ventilation

Respiration

PO2 inside the venous blood = 40

PO2 inside the alveoli = 100

Therefore, O2 flows from the high pressure (lungs) to the low pressure (blood)

PO2 inside the arterial blood = 100

PO2 = 40

PO2 = 100

PO2 = 100

Page 7: Respiration During Exercisejemmett/4340/4340-Pulmonary.pdf · Respiration During Exercise Chapter 10. Terms Ventilation Respiration Pulmonary respiration Cellular respiration. Ventilation

Respiration

PO2 = 100PCO2 = 40

7

PO2 = 40

Pulmonary Respiration

Cellular Respiration

Page 8: Respiration During Exercisejemmett/4340/4340-Pulmonary.pdf · Respiration During Exercise Chapter 10. Terms Ventilation Respiration Pulmonary respiration Cellular respiration. Ventilation

Oxygen Saturation

97%Saturation

Page 9: Respiration During Exercisejemmett/4340/4340-Pulmonary.pdf · Respiration During Exercise Chapter 10. Terms Ventilation Respiration Pulmonary respiration Cellular respiration. Ventilation

The Pulmonary System & Exercise

Page 10: Respiration During Exercisejemmett/4340/4340-Pulmonary.pdf · Respiration During Exercise Chapter 10. Terms Ventilation Respiration Pulmonary respiration Cellular respiration. Ventilation

Control of Ventilation

CO2 CO2

Page 11: Respiration During Exercisejemmett/4340/4340-Pulmonary.pdf · Respiration During Exercise Chapter 10. Terms Ventilation Respiration Pulmonary respiration Cellular respiration. Ventilation

Ventilation & Steady State Exercise

Page 12: Respiration During Exercisejemmett/4340/4340-Pulmonary.pdf · Respiration During Exercise Chapter 10. Terms Ventilation Respiration Pulmonary respiration Cellular respiration. Ventilation

Ventilation & Maximal Exercise

Note the non-linear increase

in ventilation

Page 13: Respiration During Exercisejemmett/4340/4340-Pulmonary.pdf · Respiration During Exercise Chapter 10. Terms Ventilation Respiration Pulmonary respiration Cellular respiration. Ventilation

Ventilation Threshold

CO2 from Krebs cycle stimulates

ventilation

CO2 from Krebs cycle and buffering

lactic acid stimulate ventilation even

faster

Aerobic Aerobic andAnaerobic13

Page 14: Respiration During Exercisejemmett/4340/4340-Pulmonary.pdf · Respiration During Exercise Chapter 10. Terms Ventilation Respiration Pulmonary respiration Cellular respiration. Ventilation

Ventilatory & Lactate Thresholds

Exercise “Talk Test”

Page 15: Respiration During Exercisejemmett/4340/4340-Pulmonary.pdf · Respiration During Exercise Chapter 10. Terms Ventilation Respiration Pulmonary respiration Cellular respiration. Ventilation

Ventilation & Exercise

Does the pulmonary system limit exercise performance?

Fatigue of respiratory muscles

> 80% of max and longer than 10 min

Exercise-induced hypoxemia

Page 16: Respiration During Exercisejemmett/4340/4340-Pulmonary.pdf · Respiration During Exercise Chapter 10. Terms Ventilation Respiration Pulmonary respiration Cellular respiration. Ventilation

Training

20-30% decrease

Page 17: Respiration During Exercisejemmett/4340/4340-Pulmonary.pdf · Respiration During Exercise Chapter 10. Terms Ventilation Respiration Pulmonary respiration Cellular respiration. Ventilation

Training

Do the lungs adapt to exercise training?

Do the respiratory muscles adapt to exercise training?

Page 18: Respiration During Exercisejemmett/4340/4340-Pulmonary.pdf · Respiration During Exercise Chapter 10. Terms Ventilation Respiration Pulmonary respiration Cellular respiration. Ventilation

Pulmonary Diseases

Exercise induced asthma

Chronic obstructive lung disease (COPD)


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