OCR GCSE PE Revision Session

Overview

• Session focused on OCR GCSE PE Paper 1
• Previous sessions covered other exam boards
• Hosted by James and Marta, emphasizing interaction via chat and social media
• Encouragement to subscribe to their YouTube channel for updates and resources
• Resources available include notes pages, national mock exam, mark schemes, and model answers
• Session duration: approximately 1 hour 10-15 minutes

Preparation

• Use notes pages and exam infographic for clarity
• National mock exam for skill and content reference, including mark schemes and model answers
• Profiles (Josh, Tom, Laura, Julie, Carlos) for application in examples

Key Topics Covered

Functions of the Skeleton

• Support: Framework for muscles, supports upright posture
• Posture: Correct shape for sports (e.g., sprinters)
• Protection: Protects internal organs; examples include cranium, ribs, vertebrae, pelvis
• Movement: Provides surfaces for muscles; system of levers
• Blood Cell Production: Red and white blood cells, platelets produced in bone marrow
• Mineral Storage: Bones store and release minerals like calcium and phosphorus

Muscle Roles

• Agonist: Muscle contracting to produce movement
• Antagonist: Relaxing muscle that counters movement
• Fixator: Stabilizes joints during movement

Lever Systems

• First Class Lever: Fulcrum between load and effort (e.g., neck extension)
• Second Class Lever: Load between fulcrum and effort (e.g., ankle during jump)
• Third Class Lever: Effort between load and fulcrum (e.g., bicep curl)

Planes and Axes of Movement

• Planes: Sagittal, Frontal, Transverse
• Axes: Longitudinal, Transverse, Frontal

Pathway of Blood

• Sequence from vena cava, right atrium, right ventricle, pulmonary artery, lungs, pulmonary vein, left atrium, left ventricle, aorta
• Double loop system: pulmonary and systemic circuits

Red Blood Cells and Gas Exchange

• RBCs transport oxygen (oxyhemoglobin) and carbon dioxide
• Alveoli facilitate gas exchange through diffusion gradients

Short and Long Term Effects of Exercise

• Short Term: Increase in temperature, heart rate, stroke volume, blood flow, lactic acid production
• Long Term: Bone density, muscle hypertrophy, strength, endurance, cardiovascular and respiratory improvements

Fitness Components and Testing

• Cardiovascular Endurance: Multi-stage fitness test, Cooper test
• Muscular Endurance: Press-up/sit-up test
• Speed: 30m sprint test
• Strength: Grip strength dynamometer, one rep max
• Power: Standing and vertical jump tests
• Flexibility: Sit and reach test
• Agility: Illinois agility test
• Balance: Stork balance test
• Coordination: Wall throw test

Injury Prevention and Potential Hazards

• Minimizing Risk: PPE, correct clothing, appropriate competition level, safe equipment handling
• Hazards in Various Environments: Gym, playing fields, swimming pools, sports halls

Conclusion

• Emphasis on reviewing material and memorization
• Encouragement to prepare for Paper 2
• Interaction with audience appreciated, and additional resources highlighted for continuous learning