Exercise is of advantage to the old

All these are distinct from the requirement of the senior citizens in America. The cardiologist, doctor Theodore Gel Crop wishes that elderly people put the nationwide exercise plan into practice. He said: "we are adopting an approach which is excessive protective. Our the middle-aged and the old are always persuaded, or in fact even forced to reduce their physical activity so that come to a degree of atrophy because of the inactivity, and therefore are led to a damaged result-even if it is not fatal". In the past of 20 or 30 years, there existed a serious debate on whether middle-aged people should take part in the physical training. P J Stan Crone in 1905 says in his book How to Stop Suicide: "Exercise is a state of mind, like the sheep, we also follow the foregoer. We are told "exercises are beneficial to your health", and hence divinize it as celebrated dictum whatever it is convincing or not, and have your cracking joints and the stiff muscles which won't work experience the dispensable fatigue, just because we regard it as the indispensable appendage to daily life. Please remember, you are not bound to exercise.
But now there come the signs of change. One of then is that more and more men and women starts to run. We can see from the report of Nationwide Data Center of Running: there were about 2250 runners over 40 years old among the 18466 runners who took part in the official events in 1975. Besides, they exercised hard and ran well as well as the young runners in twenties and thirties. Some competitions are graded by age (graded is divided by the age gap of 5 years) and it's not rare to see that the champions of higher grade (e.g. 50-year-old to 54-year-old) run faster than the champions of lower grade. I encountered Lacy E Perry, a 72 years old runner in a match in the city of New Jersey. He started to run at 60 years old after a doctor had ordered him to do some physical activities. Now he is one of the members of the local Old Defenders Club of Young Men's Christian Association, and he runs for 6 miles a day and can surpass the runners who are of half of his age. He told me: "the doctor told me that I could still run 50 years.
As mentioned before in the forth chapter, Doctor Fred Karsh has testified that physical exercise can restrain or even remove some main physiological changes concerned with ageing phenomenon. Furthermore, the report of research in women from 52 years old to 79 years old made by Doctor Herbert Devries and Gene Adams (their work are roughly mentioned in Chapter 2) in University of Southern California indicates that only 3 months of exercise can significantly improve the cardiovascular system and reduce the rest of the heartbeat rate.