Muscular Adaptations and responses Quiz

What is hypertrophy?

• The decrease in muscle size due to disuse.

• The increase in muscle size due to repeated resistance training.

• The conversion of Type II muscle fibers into Type I fibers.

• The breakdown of muscle tissue during high-intensity exercise.

Which of the following adaptations involves an increase in the oxygen-carrying capacity of muscles?

• Mitochondria

• Myoglobin

• Glycogen stores

• Capillarisation

What is the primary role of mitochondria in muscular adaptation?

• To store glycogen for energy.

• To increase protein synthesis.

• To produce energy aerobically.

• To enhance the recruitment of Type IIx muscle fibers.

Which muscle fiber type is most likely to improve in endurance with long-term aerobic training?

• Type I

• Type IIa

• Type IIx

• All muscle fiber types adapt equally.

Increased capillarisation in muscles is most closely associated with:

• Improved power output during anaerobic activities.

• Enhanced delivery of oxygen and nutrients to muscle fibers.

• Greater storage of triglycerides.

• Reduced micro-tearing during exercise.

During a single high-intensity sprint, which muscle fiber type is primarily recruited?

• Type I

• Type IIa

• Type IIx

• Type III

Which of the following is a response of the cardiovascular system during exercise?

• Increased blood flow to working muscles.

• Decrease in heart rate.

• Decrease in blood pressure.

• Reduction in cardiac output.

Micro-tears in muscle tissue are caused by:

• Performing low-intensity aerobic exercise.

• Stretching after exercise.

• High-resistance training or eccentric muscle contractions.

• Dehydration during endurance events.

How does the body regulate temperature during a single exercise session?

• By decreasing blood flow to the skin.

• By increasing sweat production and blood flow to the skin.

• By activating the parasympathetic nervous system.

• By reducing heart rate and blood pressure.

What is the immediate energy source stored in muscles and utilized at the beginning of high-intensity exercise?

• Myoglobin

• Glycogen

• Triglycerides

• ATP