Fitness Lessons Fitness 3

Question 1

What does the term 'hypertrophy' refer to in fitness?

Accepted Answer

Increase in muscle cell size

Answer

Hypertrophy refers to the increase in muscle cell size, which is the primary mechanism behind muscle growth from resistance training.

Question 2

Which macronutrient is most important for muscle repair after resistance training?

Accepted Answer

Protein

Answer

Protein provides amino acids essential for repairing and building muscle tissue damaged during resistance training.

Question 3

What is the primary benefit of performing a dynamic warm-up before exercise?

Accepted Answer

Raising core temperature and improving range of motion

Answer

A dynamic warm-up raises core body temperature and improves range of motion, preparing muscles and joints for the demands of exercise.

Question 4

Which of the following is an example of an isolation exercise?

Accepted Answer

Bicep curl

Answer

A bicep curl is an isolation exercise because it targets primarily a single muscle group (the biceps) at a single joint.

Question 5

At what heart rate zone does fat burning become the predominant energy source?

Accepted Answer

50-65% of max HR

Answer

The fat-burning zone is generally considered to be 50-65% of maximum heart rate, where fat oxidation contributes the highest proportion of fuel.

Fitness Lessons Practice Test