Quiz on Fatigue in Sports Science

What is fatigue in the context of sports science?

• A permanent decline in performance

• A reversible exercise-induced decline in performance

• An increase in muscle strength

• A permanent increase in endurance

What causes muscle fatigue?

• Increase in muscle size

• Loss of force producing capacity as a result of exercise

• Increase in energy levels

• Decrease in lactic acid

What is central fatigue?

• Enhanced muscle contraction

• Improved cardiovascular function

• Impaired function of the central nervous system during prolonged exercise

• Increased energy levels

What can peripheral fatigue be caused by?

• Increase in energy levels

• Depletion of energy sources and increase in products of exercise

• Enhanced muscle strength

• Improved cardiovascular function

What is endurance activity?

• Short bursts of high-intensity activity

• Prolonged sessions of low-intensity activity lasting several minutes to hours

• Quick, high-intensity exercises

• Short, low-intensity exercises

What triggers the release of Ca2+ in endurance activity?

• Increase in energy levels

• Decrease in muscle contraction

• Release of Ca2+ triggers actin binding sites to be uncovered

• Increase in muscle size

What is the result of depletion of ACh in endurance activity?

• Increased synthesis of ACh

• Cholinesterase won't be released

• Enhanced muscle contraction

• Increased energy production

Where is myoglobin found?

• In the muscle sarcoplasm

• In the bloodstream

• In the liver

• In the skin

What is the role of myoglobin during recovery?

• It carries oxygen to the mitochondria for aerobic respiration.

• It stores energy for muscle contraction.

• It breaks down glucose for energy.

• It removes carbon dioxide from the muscles.

How long can it take to replenish glycogen stores after exercise?

• Up to 2 days

• 1 hour

• 5 hours

• 3 days