Answer:
Steps necessary to use working heart rate to ensure a productive workout on a consistent basis are described by monitor heart rate throughout the session and gradually increase working heart rate to reach the appropriate range and maintain it for 20 to 30 minutes (option D).
Step-by-step explanation:
Normal heart rate is in the range of 60 to 100 beats per minute. During physical exercise, there is an increase in heart rate as a result of increased oxygen demand, so there is also an adequate range during this type of activity.
The monitoring of physical exercise is necessary at the beginning and during physical activity in order to know the effort that must be made so that the exercise can be productive and does not cause injuries or overexertion to the cardiovascular system.
During physical exercise, never exceed the maximum heart rate, which varies according to the age and sex of a person.
The other options do not provide adequate monitoring of the working heart rate.