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Link to other learning outcomes

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Lesson Outcome unpacked

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Lesson Plan 1 CBA 1

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Peer review source 1 Lesson Plan 1

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Source 2 for Lesson Plan 1

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Respiratory system structure and function - Respiratory system - Edexcel - GCSE Physical Education Revision - Edexcel - BBC Bitesize

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Learn about and revise the respiratory system with this BBC Bitesize GCSE PE (Edexcel) study guide.

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Source 2 for Lesson Plan 1

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Link to key skills and principles

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Lesson plan 2 CBA 2

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Peer reviewed source 1 for Lesson Plan 2

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Reviewed source 1 for Lesson Plan 2

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Junior Cycle Key Skills

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Source 1 for Lesson Plan 1

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The respiratory system as an exercise limiting factor in normal trained subjects - European Journal of Applied Physiology

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Recently, we have shown that an untrained respiratory system does limit the endurance of submaximal exercise (64% peak oxygen consumption) in normal sedentary subjects. These subjects were able to increase breathing endurance by almost 300% and cycle endurance by 50% after isolated respiratory training. The aim of the present study was to find out if normal, endurance trained subjects would also benefit from respiratory training. Breathing and cycle endurance as well as maximal oxygen consumption ( $$\dot VO_{2 max} $$ ) and anaerobic threshold were measured in eight subjects. Subsequently, the subjects trained their respiratory muscles for 4 weeks by breathing 85-1601 · min−1 for 30 min daily. Otherwise they continued their habitual endurance training. After respiratory training, the performance tests made at the beginning of the study were repeated. Respiratory training increased breathing endurance from 6.1 (SD 1.8) min to about 40 min. Cycle endurance at the anaerobic threshold [77 (SD 6) % $$\dot VO_{2 max} $$ ] was improved from 22.8 (SD 8.3) min to 31.5 (SD 12.6) min while $$\dot VO_{2 max} $$ and the anaerobic threshold remained essentially the same. Therefore, the endurance of respiratory muscles can be improved remarkably even in trained subjects. Respiratory muscle fatigue induced hyperventilation which limited cycle performance at the anaerobic threshold. After respiratory training, minute ventilation for a given exercise intensity was reduced and cycle performance at the anaerobic threshold was prolonged. These results would indicate the respiratory system to be an exercise limiting factor in normal, endurance trained subjects.

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Peer reviewed source 2 lesson plan 2

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Peer reviewed source 2 Lesson Plan 2 (1)

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Reflection