Question

Researchers designed an investigation to find the effect of increasing levels of exercise on two groups of people The first group of people were trained cyclists and the second group were untrained cyclists. The researchers asked all the people to cycle at four levels of effort: 30%, 45%, 60% and 75% of their maximum cycle speed.
They cycled for eight minutes at each level of effort.
The researchers predicted that the pulse rate of all the cyclists would increase during exercise.
Explain this prediction

Answer 1

Answer:

when they are cycling they need more oxygen so that their heart rate increases

Answer 2

Explanation:

the prediction stated that the pulse rate of the cyclist would increase during exercise because as they would start cycling faster and faster there body muscles would need more and more oxygenated blood to perform the exercise .

So, the heart will start pumping at a faster rate and therefore the pulse rate would increase.

Not sure about the answer but hope it helps!!

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