Question

What causes muscle fatigue? How is it removed ?

Answer 1

Muscles become fatigued (tired) during long periods of vigorous activity. This means that they stop contracting efficiently. One cause of this is the build-up of lactic acid in the muscles from anaerobic respiration. The lactic acid is removed from the muscles by blood flowing through them.

Answer 2

Muscle fatigue is caused by two main reasons – metabolic fatigue and neural fatigue.

Doing simple exercises and taking a balanced diet with medication helps in reducing muscle fatigue.  

Explanation:  

• Muscle fatigue occurs when muscles cannot function as easily as they used to and is not effective in functioning.
• It is caused due to two causes – the metabolic fatigue that results from lowering of the ability of the muscle fibers to contract and neural fatigue that occurs from the lowering of the ability of the nerve to generate signals.
• Muscle fatigue needs to be treated with ample rest, a balanced diet, physiotherapy, and medication.