00:01
Hello students, the question says that provide an example of a support athlete who in the course of competing uses all three major energy pathways and describe the individual demands that elicit the use of the energy pathways and how long the body utilizes each pathway as its main energy source and why the utilization of all three is necessary for the athlete to compete.
00:33
The three major energy pathways are the phosphagen system, the glycolytic system and the oxidative system.
00:47
Now coming to the phosphagen system, it is the primary energy source for short, high -intensity activities and it relies on stored atp and creatinine phosphate to provide energy for the muscles.
01:45
Now regarding the glycolytic system, it is used for moderate to high -intensity activities lasting up to several minutes such as soccer or basketball and it relies on the breakdown of glucose to produce atp.
02:40
And the third energy source for the pathway is the oxidative system.
02:46
It is the primary energy source for low to moderate intensity activities which last longer than a few minutes such as running or cycling and it relies on the breakdown of carbohydrates and fats to produce atp.
03:48
Now an example of an athlete who uses all three energy pathways is or could be a triathlete who competes in a combination of swimming, cycling and running.
04:21
During swimming, the athlete primarily uses the oxidative system as it is a low to moderate intensity activity which lasts relatively longer for a longer time...