从事重体力劳动或者想在体育竞赛中取得优异成绩,需要比平常人多得多的维生素,其中最重要的是维生素C和E。如果维生素不足,就会使肌肉组织受到伤害。在通常情况下,由血液系统为肌肉的正常生活和工作供给必要的氧气。可是当人的体力负担突然增长许多倍时,肌肉对氧气的需求也会大增,而且氧气会增加到肌肉来不及吸收的程度。这些“多余”的氧气会形成大量游离根,积聚在肌肉组织中,并且“污染”这些组织。时间久了,肌肉组织会坏死。形象地说,肌肉在游离根影响下发生的变化与铁 Engaged in heavy manual labor or want to get excellent results in sports competitions, require much more than ordinary people vitamins, of which the most important are vitamin C and E. Muscle tissue can be harmed if there are not enough vitamins. Under normal circumstances, the blood system supplies the necessary oxygen for the normal life and work of the muscles. However, when the sudden increase in man’s physical burden many times, the muscle oxygen demand will increase dramatically, and oxygen will increase to the extent of muscle absorption. These “extra” oxygen forms large numbers of free roots that accumulate in muscle tissue and “contaminate” these tissues. Over time, muscle tissue will be necrosis. Figuratively speaking, the muscle changes under the influence of free radicals and iron