In 1979, Pol Pot and the Khmer Rouge were forced from power by the invading Vietnamese. Pol Pot officially resigned the leadership in 1985 but appears to have retained considerable influence.
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.
Fatigue is the failure to maintain the required or expected force due to muscular activity. Many of us know this as failure during a set. However, the majority of people don't really know the causes of fatigue and why it occurs. The answer is not limited to one reason or one cause. There are many reasons for fatigue, and many causes as well. Causes Of Fatigue.