Warm up and Cool down

The warm up

• Adrenaline is released ----> increased heart rate and vasodilation allowing more O2 to be delivered to working muscles.
• Muscle temperature increases ----> oxygen dissociate more easily and allows for an increase in enzyme activity. & increases elasticity of muscle fibres 
• The speed of nerve impluse conduction increases ----> raising alertrness 
• Increased production of synovial fluid ------> efficient movement at joints 
• Psychological effects; Mental rehearsal, reduces anxiety, and allows the performer to focus on…