This move had a decisive impact on the shaping of a national job safety and health program in 1967, as the Departments of Labor and HEW promoted their competing proposals. The Bureau of the Budget accepted the Department of Labor's recommendations.
After I walk for about a minute, my legs are so tired... Q. After I walk for about a minute, my legs are so tired it feels like I've walked for miles. My doctor says it's because of poor circulation in my legs and ordered a medication, pentoxifylline, that caused dizziness, so I'm afraid to take it.
Muscle fatigue, or physical 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 âs ability to generate a sustained signal (neural fatigue) and the reduced ability of the muscle fiber to contract (metabolic fatigue).