The 100 meter dash is a quick and short run requiring explosive speed. On completion of the dash the runners will continue to breathe hard for several seconds to minutes even though they are no longer running. Which of the following is the best explanation for why this is so? a.Slow oxidative fibers are recruited last and have only started to work at completion of the run. b.The runners' fast oxidative muscles are so slow to utilize oxygen it only begins aerobic respiration by the time the run has finished. c.The runners' use of stored oxygen, glucose and creatine phosphate is being replenished and this requires a prolonged increase of oxygen intake. d. Since the exercise was mostly aerobic exercise, the runners' bodies have not yet realized
The 100 meter dash is a quick and short run requiring explosive speed. On completion of the dash the runners will continue to breathe hard for several seconds to minutes even though they are no longer running. Which of the following is the best explanation for why this is so?
a.Slow oxidative fibers are recruited last and have only started to work at completion of the run.
b.The runners' fast oxidative muscles are so slow to utilize oxygen it only begins aerobic respiration by the time the run has finished.
c.The runners' use of stored oxygen, glucose and creatine phosphate is being replenished and this requires a prolonged increase of oxygen intake.
d. Since the exercise was mostly aerobic exercise, the runners' bodies have not yet realized
Muscle fibers are a type of cell that can be found all over the body. The basic function of this fiber is to improve muscle contraction.
Smooth, cardiac, and skeletal muscles are all part of muscular systems, which are organ systems made up of diverse muscles. The muscular system has an impact on body posture, blood circulation, and movement.
Physical activity includes exercise such as running, and weight training, as well as sports. The body moves by contracting skeletal muscles, which demands energy expenditure.
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