What causes muscle fatigue? | Live Science

Via Peters

To understand what causes muscle fatigue, it’s worth looking at what exactly muscle fatigue is. If you exercise regularly, you may be familiar with the sensation of a dull ache in your muscles or experienced a feeling of tiredness or lack of energy that makes it hard to complete your usual daily tasks. But it’s not just exercise that can cause muscle fatigue, several health conditions also list muscle fatigue as a common symptom. 

A study in the Journal of Physiology defines muscle fatigue as a transient or temporary decrease in the capacity to perform physical actions. More specifically, ‘muscle fatigue’ describes any reduction in the force or power that the muscles can produce, which develops soon after the onset of physical activity.

https://www.livescience.com/what-causes-muscle-fatigue

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