From catastrophe to complexity: a novel model of integrative central neural regulation of effort and fatigue during exercise in humans.
نویسندگان
چکیده
It is a popular belief that exercise performance is limited by metabolic changes in the exercising muscles, so called peripheral fatigue. Exercise terminates when there is a catastrophic failure of homoeostasis in the exercising muscles. A revolutionary theory is presented that proposes that exercise performance is regulated by the central nervous system specifically to ensure that catastrophic physiological failure does not occur during normal exercise in humans.
منابع مشابه
Counterpoint: maximal oxygen uptake is not limited by a central nervous system governor.
signals are monitored to ensure that exercise always terminates before the loss of homeostasis in any bodily system as was the case in all these new studies (4 – 6, 10). This complex model (24, 26) contrasts to the reductionist model of Hill et al. (11), which holds that a single variable, the development of skeletal muscle anaerobiosis and " lactic acidosis, " alone causes the termination of m...
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A central debate in the exercise sciences is the cause of the fatigue that develops especially during high intensity exercise of short duration. The most popular theory holds that this form of exercise is limited by a peripherally based, metabolite induced failure of skeletal muscle contractile function, independent of reduced muscle activation by the central nervous system; so-called periphera...
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TO THE EDITOR: Neurobiological aspects of the regulation of exercise by the central nervous system (CNS) are poorly understood and have been studied mainly to understand central fatigue (i.e., a progressive decline in the drive to motoneurons) as during prolonged strenuous exercise in humans under conditions of hyperthermia (6). The predominance of centrally originating neural signals in the pe...
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ورودعنوان ژورنال:
- British journal of sports medicine
دوره 38 4 شماره
صفحات -
تاریخ انتشار 2004