When you dress in the clothes that you want to wear in the running and prompt to begin to run, wait a minute, it is not the time to run. Maybe your feelings have been primed fine to run, but your body is however not ready. It may not be suitable to do the sports if you do not do anything for one day. Formerly you begin to run, you have to arrange the body well, it is the consequence of the limbering-up exercise. The limbering-up exercises can get better the erythrism of the vital uneasy system, adjust the bad state before the race, speed up the reply speed of the brain, and prepare for the race.

However, some people understood that the warming-up sports was not important. You may discover that people had the reverse ideas on all aspects of the running while you had the extra awareness of the jogging. The limbering-up exercises had a magical factor that Vaughan Thomas wrote in Science and Sports. They intended that the warming-up exercises had its payback. Yet, the payback were not so many as people considered widely. He wrote that the player could triumph the race because of the limbering-up exercises, yet in most cases, the player would fail because the warming-up exercises spent the physical power. His words are possibly right. Yet the limbering-up exercises were still significant in some ways, so we should not ignore them.

In the third chapter, the cardiologist called Dr. Paul Act said, the warming-up exercises possibly will promote blood movement and build up the body temperature, thereby growth the abbreviation function of the muscles. In the article which was published in "American Physical Therapy" he said, for the middle-aged and older people, enhancing the blood circulation of coronary artery was particularly significant. If you did not do the warming-up exercises well, you might appear myocardial ischemia at the beginning of the fierce sports. The report of Dr. James Barnard who studied in the School of Medicine, University of California, Los Angeles had the same idea with Act. When forty-four healthy man whose age were from twenty-one to fifty run on the treadmill which was rotating rapidly without doing the warming-up exercises, more than two thirds of the people appeared the ECG abnormalities. Conversely, before running on the treadmill, if you did the warm-up exercises in the first two minute, almost all the ECG anomalies would disappear or reduce. Because the warming-up exercises increased the flexibility. The role of running in the promotion of the flexibility was poor just as what was discussed in the chapter III. For example, Running was poorer than swimming, handball, tennis and a bit better than walking, golf and bowls in improving the flexibility. Some people's muscles were tight due to running frequently, especially the calf. When you were running, the rage of the muscles movement was small and you were always repeating the same action, this was why running was poor in enhancing the flexibility. You could run or jog, walk on the uphill or walk on the downhill, and further different kinds of running so that the rage of the muscles movement would be increased, yet it was still necessary to do some exercises to improve the flexibility.