Question

4
select the correct answer.
molly is jogging on the treadmill. after 20 minutes, her heart rate has not increased, she is able to talk, and she is not sweating. if molly wants to improve her fitness level, what should she do?
○ a. she should switch to another piece of gym equipment.
○ b. she should increase the intensity of her exercise.
○ c. she should take a day off to rest and recover.
○ d. she should decrease her heart rate.

Explanation:

Since Molly's heart rate hasn't increased, she can talk, and isn't sweating after 20 minutes of jogging, it indicates the current exercise intensity is too low. To improve fitness, increasing intensity (like running faster on the treadmill) is needed. Switching equipment (A) doesn't address the intensity issue. Taking a day off (C) won't help improve fitness now. Decreasing heart rate (D) is counter - productive as a higher (but within a healthy range) heart rate during exercise is often associated with better fitness improvement when appropriate.

Answer:

B. She should increase the intensity of her exercise.