As the weather is getting warmer, it's time to go out and exercise. Although the new crown epidemic has not dissipated, people have begun to go out of their homes to participate in outdoor sports. Aerobic exercises such as jogging, rope skipping, slow cycling, and dancing are on the agenda. Some people even choose to participate in the marathon competition.
However, some studies have shown that "super-physical" athletes such as marathon runners will experience heart injury symptoms such as heart scars or arrhythmia. As a result, more and more people began to question: high-intensity aerobic exercise actually has these harms to the body?
(Source: Pixabay)
0 Researchers found that , despite the slight calcium accumulation in the coronary artery of some super-physical athletes, they were generally healthier compared with the control group who only performed moderate exercise.
The related research is based on " comprehensive assessment of cardiovascular structure and function and disease risk in middle-aged spanems span1 ultra_span4 _span4 _span4 span1" span.Published in the scientific journal Atherosclerosis .
(Source: Atherosclerosis)
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In fact, domestic and foreign scholars have been studying the relationship between sports and health for a long time. Previous studies have confirmed that the onset of many chronic diseases such as heart disease, hypertension, obesity, and osteoporosis are all related to the lack of regular physical exercise; at the same time, regular physical exercise has a positive effect on blood vessel function.
However, little is known about the central and peripheral vascular functions of middle-aged superendurance athletes, and these indicators are powerful predictors of cardiovascular disease.
(Source: Pixabay)
br9 span, spanResearchers selected 25 mid-to-long-term (10-year) super endurance athletes with confounding cardiovascular disease risk factors as the research subjects, and conducted a comprehensive assessment of their cardiovascular structure and function. Researchers combined the measurement of vascular structure and function with cardiac imaging technology to comprehensively study the cardiovascular health of the same team.
It is well known that people who have undergone endurance training have a lower risk of cardiovascular disease than sedentary adults. In response, the researchers recruited 18 people who met the current US sports guidelines but did not undergo structural endurance training to form a control group to determine whether the cardioprotective effect of exercise would be weakened in individuals who greatly exceeded the current exercise recommendations.
(Source: Colorado State University) Professor of
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Physiology and Health Department of Span Span and its Health Sciences Led by the doctoral student Nate Bachman, and conducted in collaboration with local cardiologists and other health and sports science teachers.
According to Bachman, super-physical athletes are healthy people between the ages of 40 and 65 who have trained and competed in marathons and triathlons for at least 10 years. The control group consisted of healthy subjects of the same age group, who exercised at least 150 minutes a week. Both groups of testers have gone through a rigorous screening process,Exclude obesity, high cholesterol or high blood pressure and other factors that affect health.
Between the summer of 2017 and the end of 2018, Dinenno and Bachman conducted a series of vascular tests on subjects in the laboratory, asked them to do aerobic fitness tests, and evaluated such things as The stiffness of the cervical artery and the expansion of the arm’s blood vessels. Then, the subjects were sent to UCHealth Medical Center to receive echocardiography examination of cardiac structure/function. Considering that calcium deposits are an important sign of cardiovascular problems, the researchers also performed imaging examinations of coronary artery calcium levels on subjects.
The measurement content accepted by the subjects includes:
- spanstrong artery calcium strong coronary artery sclerosis ul20 Of plaques, using cardiac CT scans to collect data. This measurement method is usually used as a screening technique in medical settings and is suitable for asymptomatic people over 40 years of age who are at moderate risk of coronary artery disease.
- Echocardiography (Echocardiography): Use ultrasound to measure the structure and function of the heart.This indicator is used for clinical evaluation to determine diseases such as heart failure or valve dysfunction.
- Myocardial fibrosis (Myocardial fibrosis): Scar of heart tissue, measured by cardiac MRI. This technique is not routinely used clinically, but it is related to cardiac events in some patient groups.
- carotid artery- femoral artery pulse wave velocity (Carotid-femoral pulse wave velocity): measurement of aortic stiffness with a special laboratory equipment. This is an independent predictor of heart events such as heart disease and stroke.
- Carotid compliance (Carotid compliance): basically the opposite of stiffness (the higher the compliance, the better), it is measured by ultrasound. This is a good measurement method to understand the difference in vascular function between the two groups.
- Carotid artery intima thickness (Carotid intima-media thickness): The thickness of the carotid artery wall.With ultrasound measurement, it can also predict the risk of cardiac events, which can be elevated due to accumulation of arterial plaque.
- Brachial artery endothelial function (Brachial artery endothelial function): The diameter of the artery changes with the increase of blood flow. It can independently predict the risk of cardiac events and reduce the risk of people at risk of cardiovascular disease.
From most measurement indicators such as the stiffness of the aorta and the elasticity and thickness of the carotid arteries, the cardiovascular health of the super physical athletes of is better than that of the control group. There are no scars on the heart of the person. Among them, 8 super runners had calcium deposits in their arteries, while only 2 people in the control group had such deposits.
High-intensity aerobic exercise is harmless to health
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High, but their overall cardiovascular health is still better than the athletes in the control group. So the research team concluded: high-intensity aerobic exercise is not harmful to human health.
When other risk factors (such as blood pressure, cholesterol, and age) and calcium levels are used to determine the risk of heart disease, most athletes are below the threshold for statin therapy. The researchers entered all the data into the coronary heart disease risk calculator and found that the risk of super physical athletes was not higher than that of the control group.
Bachman said: "We found no evidence that would allow us to advise people not to over-exercise. The overall benefits of exercise outweigh everything we have seen."
(Source: Pixabay)
7 of the 7 male athletes who checked for physical calcium deposits were found to be superspan 1span athletes. Dinenno and Bachman said that some studies have shown that calcium deposits in men tend to appear earlier and have higher calcium levels than women, and the results of this study coincide with the results of these studies.
However,The researchers said that the study also has some limitations, such as the small experimental sample size and does not exclude participants with a family history of cardiovascular disease. Therefore, before plans to develop into a super physical athlete, you should seek medical treatment in advance for a comprehensive examination. Bachman said: “There may be some people who shouldn’t do so much exercise.”
Reference: _1span4span/2021 spanx-news/2021 02-cardio-bad.html
https://www.atherosclerosis-journal.com/article/S0021-9150 (20) 31550-1/fulltext
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