What Is Muscle Fatigue
Muscle fatigue is the decline in 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.
There are two main causes of muscle fatigue: the limitations of a nerve's ability to generate a sustained signal (neural fatigue); and the reduced ability of the muscle fiber to contract (metabolic fatigue).
Why It Matters
Poor sitting posture is a major cause of muscle fatigue on back for white-collar workers
Excessive or improper vigorous exercises commonly result in muscle fatigue in daily life
Muscle fatigue is a common phenomenon in some certain professions like sheep shearers
Muscle fatigue can directly lead to a significant reduction in muscle force generating
Muscle pain can be considered as a symptom of worse condition of muscle fatigue
Chronic and severe muscle fatigue carries a risk of causing muscle injury