No exercise and CAD
Maurice and Reeve published the famous London Bus Driver Study in 1954, which has made the world notice that inactivity can be a cause of heart disease. After learning more about the incidence of CAD (cardiac or coronary artery disease) among bus drivers and conductors, they found that the conductor had more activities than the driver, and the incidence of heart disease was 30% lower than that of the driver. The disease appeared early in the driver, and the first death from heart failure was twice as high as the conductor. This study has drawn attention to the role of activities. In an epidemiological study, Pfenberg and colleagues investigated thousands of Harvard graduates, research activities, positive activities, and the effects of exercise on cardiovascular disease and death. The proportion of people with low activity (those who consumed less than 1,000 calories per week) and those with moderate and high levels of activity were 0.71 and 0.54, respectively. A person who consumes less than 1000 calories a week A person who consumes 1,000 to 2,500 calories a week for an activity of 0.71 0.54 person who consumes more than 2,500 calories a week Therefore, moderate activity reduced the risk rate by 29%, while a large number of activities reduced the risk rate by 46%. Compared with those who do not exercise, the mortality rates of those who are engaged in mild or moderate exercise are 0.79 and 0.63 respectively. The risk of death and the incidence of first-time CAD are inversely related to the amount of physical activity, as shown in the weekly exercise energy consumption table. When the activity consumed calories for more than 2,500 calories a week, the mortality rate is close to 0.5, that is, the risk rate is reduced. 50%. Data provided by Pfenberg and his colleagues show that moderately active activities and exercise are less effective at reducing CAD risk. Those who are not active or who have less activity are at 2.4 times the risk of heart disease than those who do active sports. Most other studies have the same conclusion that the risk of heart disease is inversely proportional to the amount of regular exercise, regardless of whether the exercise is professional, casual or active. Research shows that activities can only benefit at the same time or in the same period. High school or university participation in sports cannot guarantee future life. In fact, regular active adults can reduce the risk of CAD regardless of whether they are active during their youth. People carried out an autopsy of soldiers who died in the Korean War in the United States and found that 77% had CAD symptoms, indicating that atherosclerosis began to develop at the age of 22. In another study, the autopsy of the elderly (45-70 years old) found that the incidence of scars and blockages in arteries was 30% less in those who were moderately active, but in more active people. In less. Animal studies have also confirmed that moderate activities are beneficial, but the study also pointed out that exhausting or stressful exercise may aggravate the development of CAD. Tiredness can be stressful for animals, and stress stimulates endocrine reactions to accelerate the progression of atherosclerosis. This is true for animals, and so does humans. Fabric Shaver,Portable Fabric Shaver,Electric Fabric Shaver,Battery Electric Fabric Shaver Ningbo Beilun Xuanfeng Molding Co., Ltd. , https://www.schelfern.com