Moreover, the number of muscle fibers involved in the work during the exhausting workout decreased

Moreover, the number of muscle fibers involved in the work during the exhausting workout decreased. For example, a group of researchers studied the power and activation of muscle fibers during an hour-long bicycle ride, during which it was proposed to overcome the 6-minute acceleration to failure. The power and activation of muscle fibers gradually decreased from the second to the fifth acceleration, despite the attempt of cyclists to maintain speed. The fall in activation and muscle power can be the result of a decrease in the central regulation of muscle activity. Fatigue is a problem of central perception, it is actually akin to sensation or emotion and is not a direct physical phenomenon. Interestingly, contrary to the fall in power and the number of fibers involved in the first five accelerations in the last, sixth, acceleration, which fell at the last minute of arrival, the power and activation of muscle fibers significantly increased. A familiar picture for fans of velomnogodnevok - finish spurt. If fatigue developed in muscles, cyclists would not be able to make this final jerk. Despite the fact that these observations lead us away from the leading role of muscles in the development of fatigue, we can not completely reject the role of muscles in this phenomenon, just muscle fiber is not here the main link. Well, you say, fatigue does not develop in the muscles, where is the "fatigue center" that makes us slow down?