Chronic adaptations to aerobic training - respiratory

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13 Terms

1
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Increased pulmonary ventilation during maximal exercise

  • Ventilation increases due to higher tidal volume (TV) and respiratory frequency (RF), supplying more oxygen to working muscles

  • At rest and submaximal exercise, ventilation may be reduced due to improved oxygen extraction

<ul><li><p>Ventilation increases due to higher tidal volume (TV) and respiratory frequency (RF), supplying more oxygen to working muscles</p></li><li><p>At rest and submaximal exercise, ventilation may be reduced due to improved oxygen extraction</p></li></ul><p></p>
2
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Increased tidal volume

  • Aerobic training strengthens respiratory muscles, increasing the amount of air inspired and expired per breath

  • This improves oxygen diffusion into alveoli capillaries and delivery to working muscles.

<ul><li><p>Aerobic training strengthens respiratory muscles, increasing the amount of air inspired and expired per breath</p></li><li><p>This improves oxygen diffusion into alveoli capillaries and delivery to working muscles.</p></li></ul><p></p>
3
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Increased pulmonary diffusion

  • Aerobic training increases alveoli surface area, improving oxygen and carbon dioxide exchange between alveoli and capillaries. Combined with increased ventilation, more oxygen is inhaled, extracted, and delivered to working muscles.

<ul><li><p>Aerobic training increases alveoli surface area, improving oxygen and carbon dioxide exchange between alveoli and capillaries. Combined with increased ventilation, more oxygen is inhaled, extracted, and delivered to working muscles.</p></li></ul><p></p>
4
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Decreased resting and submaximal respiratory frequency

  • Athletes breathe fewer times per minute at rest and submaximal exercise due to improved pulmonary function and increased oxygen extraction from alveoli to capillaries.

5
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Total lung capacity adaptation

  • Increase

6
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Pulmonary ventilation adaptation

  • Rest: Decrease

  • Submaximal exercise: Decrease

  • Maximal exercise: Increase

7
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Tidal volume adaptation

  • Rest: No change

  • Submaximal exercise: Increase

  • Maximal exercise: Increase

8
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Respiratory frequency adaptation

  • Rest: Decrease

  • Submaximal exercise: Decrease

  • Maximal exercise: Increase

9
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Pulmonary diffusion adaptation

  • Increase

10
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Increased alveolar surface area (pulmonary diffusion)

  • Aerobic training increases alveoli surface area, improving oxygen and carbon dioxide exchange. More oxygen is extracted and transported to working muscles.

11
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Increased tidal volume

  • Aerobic training strengthens respiratory muscles, increasing the amount of air inspired and expired per breath, enhancing oxygen delivery to working muscles.

12
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Decreased resting and submaximal respiratory frequency

  • Improved pulmonary function allows fewer breaths per minute at rest and submaximal exercise, increasing oxygen extraction efficiency from alveoli to capillaries.

13
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Increased ventilation during maximal exercise

  • At maximal workloads, tidal volume and respiratory frequency increase, allowing greater oxygen delivery to working muscles.