Aerobic respiratory system
The With oxygen. respiratory system is responsible for producing the majority of our energy while our bodies are at rest or taking part in low-intensity exercise for long periods of time such as jogging or long-distance cycling.
Aerobic exercise takes place in the presence of oxygen. It is lower intensity, longer duration exercise. Aerobic exercise can be sustained for a prolonged period of time because there is lots of glucose available and no great build-up of lactic acid.
Examples of aerobic activities include marathon running, 5,000 metres, distance swimming, jogging back to reposition in football, dancing, canoeing and cross-country skiing.
Glucose + oxygen 鈫 energy + water + carbon dioxide
Glucose from carbohydrates and fats supply the energy for the aerobic energy system and can supply energy for long periods of time.
Carbohydrate food sources include rice, bread, potatoes, bananas and energy drinks. Fat food sources include butter, oils, cheese, milk and nuts.
Question
Give an example of an athletics event that mainly uses the aerobic energy system to provide energy.
Any one of the following: 5,000 metres run, 10,000 metres run, marathon, race walking, triathlon, biathlon.