Understanding Energy Systems in Fitness

Which of the following best describes the aerobic energy system?

• Utilises oxygen to produce energy

• Does not require oxygen to produce energy

• Produces energy quickly but for a short duration

• Only used during high-intensity activities

What is the primary fuel source for the anaerobic glycolysis system?

• Fat

• Protein

• Carbohydrates

• Water

During a 400-metre sprint, which energy systems are primarily used?

• Aerobic system only

• Anaerobic glycolysis and ATP-PC systems

• Aerobic and anaerobic glycolysis systems

• ATP-PC system only

Which type of training is most effective for improving cardiovascular endurance?

• High-intensity interval training (HIIT)

• Long, slow distance training

• Plyometric training

• Strength training

What is the principle of progressive overload in strength training?

• Increasing the amount of rest between sets

• Gradually increasing the weight, frequency, or number of repetitions in your strength training routine

• Decreasing the intensity of workouts over time

• Maintaining the same workout routine indefinitely

Which macronutrient is most important for muscle repair and growth?

• Carbohydrates

• Fats

• Proteins

• Vitamins

What is the recommended daily intake of water for an average adult?

• 1 litre

• 2 litres

• 3 litres

• 4 litres

Which of the following is a key benefit of proper recovery strategies in training?

• Increased risk of injury

• Decreased muscle mass

• Improved performance and reduced fatigue

• Slower muscle repair

What is the primary purpose of a cool-down session after exercise?

• To increase heart rate

• To prevent muscle soreness and aid in recovery

• To build muscle strength

• To improve flexibility

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

• Weightlifting

• Sprinting

• Swimming

• High jump