L6 topic 9

What is the definition of fatigue in sports?

• A permanent decrease in muscle strength.

• A reversible, exercise-induced decline in performance.

• An increase in energy levels during physical activity.

• A reversible, exercise-induced increase in performance

Which type of fatigue develops rapidly and is caused by reduced muscle cell force?

• Central fatigue

• Mental fatigue

• Peripheral fatigue

• Metabolic fatigue

Which of these is not a main factor contributing to Peripheral fatigue?

• Decreased Ca2+ release

• Muscle fibre damage

• Depletion of energy stores (e.g., glycogen)

• Neurotransmitter Imbalance

Mr Smith is a weightlifter competing in a powerlifting competition. After several intense sets of squats, she notices a significant decrease in muscle strength and endurance. Her muscles feel heavy and fatigued, making it challenging to complete her lifts. Which type of fatigue is this?

• Central

• Peripheral

Which is not one of the 3 main factors contribute to varying perceptions and responses to fatigue during exercise?

• Type of exercise

• Age

• Agility level

Which type of fatigue develops during prolonged exercise and is caused by impaired function of the central nervous system?

• Peripheral

• Central

What physiological change associated with aging may influence an individual's perception of fatigue during exercise?

• Decreased muscle mass

• Faster recovery times

• Enhanced muscle strength

• Improved endurance capacity

What is the definition of muscle fatigue

• Decrease of ATP production of the muscles

• • loss of force-producing capacity as a result of exercise

• Increase of lactic acid to the working muscles

Why is understanding fatigue important in sports science?

• Fatigue helps improve athletic performance.

• Fatigue can be ignored during training.

• Fatigue provides valuable insights into an athlete's physical and mental limits.

• Fatigue has minimal impact on training outcomes.

How does reduced motor unit recruitment contribute to central fatigue during exercise?

• By signaling to the central nervous system that the muscle is unable to meet the demands of the activity due to inadequate recruitment

• By facilitating efficient energy utilisation within muscle cell.

• By promoting faster recovery times between sets

• By causing lactic acid to block the signalling from the brain