Understanding Energy Systems in Exercise

What is the primary method to calculate your aerobic threshold?

• By measuring your maximum heart rate

• By determining the heart rate at which lactate begins to accumulate in the blood

• By calculating your VO2 max

• By assessing your resting heart rate

Which of the following activities is most effective for enhancing aerobic capacity?

• Sprinting

• Weightlifting

• Long-distance cycling

• High-intensity interval training (HIIT)

How can you calculate your anaerobic threshold?

• By measuring the point at which your breathing becomes laboured

• By determining the heart rate at which you can no longer sustain exercise

• By calculating your VO2 max

• By assessing your resting heart rate

Which activity is best suited to improve anaerobic capacity?

• Marathon running

• Yoga

• Sprint intervals

• Walking

Which energy system is primarily used during a marathon?

• Phosphagen system

• Anaerobic glycolysis

• Aerobic system

• Lactic acid system

During a 1500-metre run, which energy systems are predominantly utilised?

• Phosphagen and aerobic systems

• Anaerobic glycolysis and aerobic systems

• Phosphagen and anaerobic glycolysis

• Aerobic and lactic acid systems

What is the main energy system used in a 100-metre sprint?

• Aerobic system

• Anaerobic glycolysis

• Phosphagen system

• Lactic acid system

Which physiological response is most associated with aerobic training?

• Increased muscle mass

• Improved flexibility

• Enhanced cardiovascular efficiency

• Increased bone density

What is a common physiological response to anaerobic training?

• Increased lung capacity

• Improved muscle endurance

• Increased muscle strength and power

• Enhanced joint flexibility

Which of the following best describes the role of the lactic acid system in exercise?

• Provides energy for long-duration, low-intensity activities

• Supplies immediate energy for short bursts of high-intensity activity

• Supports moderate to high-intensity activities lasting up to 2 minutes

• Is the primary energy source for activities lasting over an hour