Muscle fatigue

Muscle Fatigue

Muscle fatigue (pronunciation: /ˈmʌsəl fəˈti:g/) is a condition characterized by a decrease in the ability of a muscle to generate force. It can be a result of vigorous exercise but abnormal fatigue may be caused by barriers to or interference with the different stages of muscle contraction.

Etymology

The term "muscle fatigue" comes from the Latin musculus meaning "little mouse" and the Old French fatigue meaning "tire".

Causes

Muscle fatigue can be caused by a variety of factors, including:

• Lactic acid build-up in the muscles
• Depletion of glycogen stores in the muscles
• Dehydration
• Poor nutrition
• Lack of sleep
• Overexertion or overuse of the muscles

Symptoms

Symptoms of muscle fatigue can include:

• Decreased strength
• Reduced speed or capacity for work
• Pain or discomfort in the muscles
• Muscle twitching or spasms
• Difficulty in initiating or sustaining voluntary muscle activities

Treatment

Treatment for muscle fatigue often involves rest and recovery, proper nutrition, and hydration. In some cases, physical therapy or medication may be recommended.

Related Terms

• Muscle weakness
• Muscle atrophy
• Muscle cramps
• Muscle strain
• Muscle soreness

External links

• Medical encyclopedia article on Muscle fatigue
• Wikipedia's article - Muscle fatigue

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