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Respiratory Adaptations to Long Term Training Respiratory system: increased vital capacity; increase in minute ventilation; increased strength of respiratory.

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Presentation on theme: "Respiratory Adaptations to Long Term Training Respiratory system: increased vital capacity; increase in minute ventilation; increased strength of respiratory."— Presentation transcript:

1 Respiratory Adaptations to Long Term Training Respiratory system: increased vital capacity; increase in minute ventilation; increased strength of respiratory muscles; increase in oxygen diffusion rate

2 AEROBIC Just as there are cardiovascular adaptations to AEROBIC training there are also respiratory adaptations. These include: Increased lung ventilation & small increase in lung volumes Increased oxygen uptake Increased anaerobic or lactate threshold AEROBIC Just as there are cardiovascular adaptations to AEROBIC training there are also respiratory adaptations. These include: Increased lung ventilation & small increase in lung volumes Increased oxygen uptake Increased anaerobic or lactate threshold Respiratory Adaptation

3 Increased Lung Ventilation (minute ventilation V E ): Aerobic training results in a more efficient and improved lung ventilation. V E At REST and during SUB MAX work V E may be decreased due to improved oxygen extraction (pulmonary diffusion). However during MAX work V E is increased because of increased tidal volume, vital capacity and respiratory frequency. This is in part due to the increased strength of respiratory muscles such as:Diaphragm Inter costal muscles RhomboidsSternocleidomastoids Respiratory Adaptation

4 Increased Maximum Oxygen Uptake (VO 2 MAX ) VO 2 MAX is improved as a result of aerobic training – it can be improved between 5 to 30 %. Improvements are a result of: -Increases in cardiac output -Increased Red blood cell numbers - Increased muscle and alveoli capillarisation - Increased gaseous exchange - More O2 coming in and being used - More CO2 leaving the blood and the body - Greater oxygen extraction by muscles Increased Maximum Oxygen Uptake (VO 2 MAX ) VO 2 MAX is improved as a result of aerobic training – it can be improved between 5 to 30 %. Improvements are a result of: -Increases in cardiac output -Increased Red blood cell numbers - Increased muscle and alveoli capillarisation - Increased gaseous exchange - More O2 coming in and being used - More CO2 leaving the blood and the body - Greater oxygen extraction by muscles Respiratory Adaptation

5 Increased Anaerobic or Lactate Threshold As a result of improved O 2 delivery & utilisation a higher lactate threshold (the point where O 2 supply cannot keep up with O 2 demand) is developed. Much higher exercise intensities can therefore be reached and LA (lactic acid) and H+ ion accumulation is delayed. The athlete can work harder for longer Increased Anaerobic or Lactate Threshold As a result of improved O 2 delivery & utilisation a higher lactate threshold (the point where O 2 supply cannot keep up with O 2 demand) is developed. Much higher exercise intensities can therefore be reached and LA (lactic acid) and H+ ion accumulation is delayed. The athlete can work harder for longer Respiratory Adaptation

6 Very few adaptations occur As this type of training utilises anaerobic systems. Respiratory system is predominately concerned with the aerobic system Very few adaptations occur As this type of training utilises anaerobic systems. Respiratory system is predominately concerned with the aerobic system Respiratory Adaptation – Anaerobic Exercise


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