Analyse how training status affects ventilation rate response during submaximal exercise. (6 marks)
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Sample Answer
- Trained individuals typically have lower ventilation rates at the same submaximal exercise intensity compared to untrained individuals.
- This occurs because trained individuals develop greater respiratory efficiency through adaptations such as increased vital capacity and stronger respiratory muscles.
- Trained individuals also have enhanced oxygen extraction capability at the muscle level, reducing the need for extremely high ventilation rates.
- At the same absolute workload, a trained individual’s ventilation rate will increase less dramatically from their resting state compared to an untrained person.
- Training adaptations allow for more efficient carbon dioxide removal at lower ventilation rates, delaying the onset of respiratory fatigue.
- Experienced athletes demonstrate better synchronisation between ventilation rate and movement patterns (e.g., running stride or swimming stroke), further enhancing efficiency.
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Sample Answer
- Trained individuals typically have lower ventilation rates at the same submaximal exercise intensity compared to untrained individuals.
- This occurs because trained individuals develop greater respiratory efficiency through adaptations such as increased vital capacity and stronger respiratory muscles.
- Trained individuals also have enhanced oxygen extraction capability at the muscle level, reducing the need for extremely high ventilation rates.
- At the same absolute workload, a trained individual’s ventilation rate will increase less dramatically from their resting state compared to an untrained person.
- Training adaptations allow for more efficient carbon dioxide removal at lower ventilation rates, delaying the onset of respiratory fatigue.
- Experienced athletes demonstrate better synchronisation between ventilation rate and movement patterns (e.g., running stride or swimming stroke), further enhancing efficiency.