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Identify the main energy system used for each of the activities below - Leaving Cert Physical Education - Question 18 - 2022
Question 18
Identify the main energy system used for each of the activities below. Event Duration Intensity Main Energy System Marathon 2 + hours Low to medium 400m ... show full transcript
Worked Solution & Example Answer:Identify the main energy system used for each of the activities below - Leaving Cert Physical Education - Question 18 - 2022
Step 1
ii) 400m
Answer
For the 400m event, which lasts approximately 45 seconds and has a high intensity, the main energy system utilized is the Anaerobic Lactic system. This system supports performance for activities that require significant bursts of energy over a short duration and involves the breakdown of glucose without oxygen.
Step 2
iii) Long Jump
Answer
In the Long Jump, which lasts between 3 to 5 seconds and demonstrates high intensity, the athlete primarily uses the Anaerobic ATP-PC system (Phosphagen system). This system is crucial for immediate, short-duration activities requiring maximal effort, relying on stored ATP and creatine phosphate with no need for oxygen.
Step 3
i) Marathon
Answer
The Marathon, lasting over 2 hours and characterized by low to medium intensity, primarily utilizes the Aerobic/oxidative system. This system efficiently provides energy through the utilization of oxygen to metabolize carbohydrates and fats, making it ideal for prolonged activities.