Question

roxy is exercising with a jump rope. although she is standing next to hector, she is having difficulty speaking to him due to her exertion. therefore, it is likely that roxy is exercising at ______.
a. low intensity
b. moderate intensity
c. vigorous intensity
d. none of the above

please select the best answer from the choices provided.

○ a
○ b
○ c
○ d

Explanation:

During vigorous - intensity exercise, the body's demand for oxygen is very high, and a large amount of energy is consumed. This leads to a rapid breathing rate and a high heart rate. As a result, it becomes difficult to speak while exercising because the body is focused on meeting the oxygen and energy needs of the working muscles. In contrast, during low - intensity exercise, the body's physiological responses are relatively mild, and one can usually speak without much difficulty. For moderate - intensity exercise, while breathing and heart rate increase, it is still possible to carry on a conversation, although maybe with a bit more effort than in low - intensity. Since Roxy is having difficulty speaking due to exertion while jumping rope, this is consistent with the characteristics of vigorous - intensity exercise.

Answer:

C. vigorous intensity