characteristics and factors affectic aerobic/ anaerobic exercise

Question 1

what factors affect which energy system is used

Answer 1

• amount of oxygen available
• intensity of exercise
• duration of the exercise
• nutrients available for fuel and recovery

Question 2

describe how intesnity effects which energy system is used

Answer 2

• low to medium intensity exercise is anaerobic
• high intensity exercise is anaerobic
• however the point at which the athlete starts to work anaerobically will depend on the athletes’ fitness levels

Question 3

describe how duration of exercise effects which energy system is used

Answer 3

• long duration activities tend to be aerobic as work for a long time but intensity tends to be low to medium
• short duration activities are often explosive and high intensity, meaning they tend to be anaerobic

Question 4

describe how nutrients affect which energy system is used

Answer 4

• low intensity aerobic events make use of fat and carbohydrates (glycogen)
• high intensity anaerobic events make use of creatine phosphate and carbohydrates (glycogen)