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1. Muscle contraction mechanisms: actin-myosin interaction, sarcomere shortening, ATP hydrolysis, calcium ion role, Z-line movement

2. Muscle fiber characteristics: type IIx fibers, large diameter, high glycogen content, low myoglobin, low mitochondrial density, fast contraction speed, anaerobic metabolism

3. Cardiovascular adaptations: increased stroke volume, decreased resting heart rate, improved cardiac output, increased capillarization, enhanced oxygen delivery

4. Energy systems in sport: ATP-PC system, glycolytic system, oxidative system, energy transfer through mechanical, chemical, thermal, potential, kinetic forms, sporting examples used

5. Recovery physiology: slow component of EPOC, lactate removal, thermoregulation, hormone restoration, respiratory and heart rate regulation

6. Warm-up responses: increased muscle elasticity, improved joint mobility, synovial fluid production, faster nerve conduction, increased enzymatic activity, reduced injury risk, enhanced oxygen delivery, heart rate increase

Edexcel A Level Physical Education (9PE0) Jun 2023

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Classification: Edexcel Paper 1

Page count: 28

Viewed: 6

Last update: 13 days ago

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Physical Education 9PE0/01 June 2023 | Edexcel A Level Past Papers With Mark Scheme

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