Physiology of fitness_nrg_systems_-_lesson_4

Physiology of Fitness Energy systems and their role in sport and exercise

Learning Outcomes ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Chemical fuel ,[object Object],[object Object],[object Object]

ATP ,[object Object],[object Object],[object Object],[object Object],[object Object],Lots of energy stored between 2 nd & 3 rd phosphate groups Phosphate (creatine phosphate)

Actin & Myosin ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Contractile proteins

What is ATP? ,[object Object],[object Object],[object Object],The release of energy from ATP

Energy Systems ,[object Object],[object Object],[object Object],[object Object],What is this? The mitochondrion , shown here, is a tiny cellular structure that turns chemical fuel into cellular energy ie ATP.

Creatine Phosphate System ,[object Object],[object Object],[object Object],[object Object],[object Object],Activity List as many sports activities as possible that use mainly the CP system.

Creatine Phosphate System Primary energy source: Duration of activity: Sporting events: Advantages: Limiting factors: Stored ATP, CP 7-12 s Weight lifting, high jump, long jump, 100m run, 25m swim Produce very large amount of energy in a short amount of time ,[object Object]

Training The CP System ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Lactic Acid Energy System ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Lactic Acid Energy System Primary energy source: Duration of activity: Sporting events: Advantages: Limiting factors: Stored glycogen, blood glucose 12 s – 3 min ,[object Object],800m run, 200m swim, downhill ski racing, 1500 speed skating Ability to produce energy under conditions of inadequate oxygen

Lactic Acid Energy System ,[object Object],[object Object],[object Object],[object Object]

Recap ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Aerobic Energy System Primary energy source : Duration of activity: Sporting events: Advantages: Limiting factors: Glycogen, glucose, fats, proteins > 3 min ,[object Object],Walking, jogging, swimming, walking up stairs Large output of energy over a long period of time, removal of lactic acid

Aerobic Energy System ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Types of Sport that use each system ,[object Object],[object Object],[object Object],[object Object]

Energy Systems Summary ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Energy Systems Summary ,[object Object],[object Object],[object Object],[object Object]

Physiology of fitness_nrg_systems_-_lesson_4

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