The more sports, the better?
Release date: 2017-10-20
A long-term study recently published in Mayo Clinic Proceedings found that people with excessive exercise are more likely to develop coronary artery calcification, an indication often used to predict heart disease.
Researchers from the Kaiser Permanente Oakland Medical Center in California conducted a 25-year follow-up of 3,175 young participants to analyze their physical activity and health. During the study, these participants reported their exercise and participated in eight physical exams (at least three times). The final physical activity score is calculated based on the amount and intensity of the participant's exercise: participants who do not reach the recommended weekly 150-minute exercise amount are grouped together, and the recommended amount of exercise is grouped together, and the weekly exercise amount is reached. 450 minutes - a group that exceeds the recommended amount of exercise by three times.
Coronary calcification in each participant was measured by CT scan, which is considered to be a good indicator for predicting heart disease. In addition, participants' blood lipids, fasting blood glucose and cholesterol were also measured at each time point.
The research team expects to see that as these participants reach middle age, more exercise should be associated with less arterial calcification. But after the team ruled out the interference factors that would affect the outcome, they found that the group with excessive exercise was 27% more likely to have coronary calcification!
However, the researchers also questioned whether coronary calcification levels observed in participants with excessive exercise could be used as indicators of predicting heart disease. "Long-term, large-scale exercise can cause arterial pressure, leading to higher levels of coronary artery calcification," said Dr. Jamal Rana, one of the authors of the study. "But this plaque buildup may be a more stable type and therefore less likely to rupture and Caused heart disease. This was not evaluated in this study."
The research team plans to continue to follow up participants to see if participants with higher coronary calcification levels will experience more health problems. Previous studies have shown that long-term high-intensity exercise may have adverse effects, such as a study a few years ago found that strenuous jogging is associated with an increased risk of death compared to mild jogging. Other studies have also found similar "U" shaped curves, meaning that low levels of exercise are associated with disease risk, moderate levels of exercise reduce disease risk, and high levels of exercise increase disease risk again.
Of course, this is not to say that you should stop exercising. Physical exercise is still the best way to maintain weight, metabolism, healthy blood pressure, and reduce the risk of chronic diseases such as cancer, diabetes and Alzheimer's disease. Many studies have shown that sedentary is the most unfavorable lifestyle for long-term health and increases the risk of multiple chronic diseases and deaths.
Current research suggests that for the body, especially for the heart, there should be an upper limit on the amount of exercise. Exceeding this limit, exercise is no longer beneficial to people, but becomes stress. The study also reminds those who are "addictive" to sports or who like to exercise intensely for a long time. Exercise should also be moderate.
Source: e Medicine Global
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