Exercise is an inexpensive and powerful treatment for managing, avoiding, or reducing the harmful risks of cardiovascular disease for any individual. While affirming the same, Dr. Ravinder Singh Rao, an interventional cardiologist, in a conversation with Raj Shermani, emphasized that there is a U-shaped relationship between exercise and heart health. Simply put, moderate exercise is better than no exercise (half of the U), but vigorous exercise can be harmful for some people (the other half of the U). “Excessive physical activity is also associated with heart attack risk, so everything should be done in moderation,” Dr. Rao said.
The U-shaped curve, also known as the extreme exercise hypothesis, defines a dose-response relationship between the amount of physical activity and cardiovascular health. “This curve suggests that low to moderate levels of physical activity can significantly reduce cardiovascular disease and mortality, while very high levels of physical activity can increase cardiovascular disease and mortality. ,” said Dr. Haresh G. Mehta, Head of Interventional Cardiology, SL Raheja Hospital. Mahim.
Is “more exercise” associated with better health benefits?
Studies examining epidemiology and biological plausibility support the idea that being more active or having improved cardiorespiratory fitness may reduce the risk of coronary heart disease. Masu. Additionally, exercise is known to slow aging, so many people believe that the more exercise, the better. “This is why more and more people around the world are doing endurance training, competitive long-distance endurance events and high-intensity interval training,” says Ranjan, Senior Consultant and Head of Interventional Cardiology, Sarvodaya Hospital.・Dr. Modi pointed out. -8, Faridabad.
Dr. Mehta revealed that this discrepancy is only seen with high-volume, high-intensity exercise over a long period of time. “Long-term exercise-induced stress can lead to cardiac maladaptations in some people, including left ventricular hypertrophy, increased coronary artery calcification, release of cardiac biomarkers, myocardial fibrosis, exercise-induced arrhythmia remodeling, and atrial fibrillation.” ,” Dr. Mehta said.
However, Dr. Modi said strenuous exercise, especially when performed by unfit people, can significantly increase the risk of sudden cardiac death or acute myocardial infarction in people who are already at high risk. “Recent research has also shown that high levels of exercise or large amounts of exercise can lead to adverse changes in the heart. These changes occur rapidly in the coronary arteries, and biomarkers within the heart during exercise A dose-response curve shaped like a U or an inverted J links these unhealthy responses to physical exercise. “It often shows,” Dr. Modi explained.
Exercise is very important (Source: Getty Images/Thinkstock)
At least 150 minutes of moderate aerobic exercise per week or at least 75 minutes of vigorous aerobic exercise per week can significantly reduce your risk of death. “Prolonged strenuous exercise can have a negative effect on the heart, leading to early death and weakening the body’s resistance to heart disease,” Dr Modi warned.
The relationship between exercise intensity and risk of rhythm disorders (atrial fibrillation or AF) is also U-shaped. “People who are sedentary or who engage in strenuous activity every day are most likely to develop AF. Instead of going all out, aim for a modest effort or do strenuous exercise at least once a week.” It may be better to take a break,” Dr. Modi said.
Nevertheless, physical activity should be encouraged for everyone, including patients with chronic heart disease, as even moderate exercise has many benefits, says Prat, Consultant Interventional Cardiology, Fortis Hiranandani Hospital, Vashi. said Dr. Shant Pawar. “Veteran athletes have been shown to have a higher prevalence of atrial fibrillation than sedentary people of the same age. However, athletes tend to live longer than those with sedentary lifestyles. “We may be ready to accept that too much of a good thing, in the form of chronic intense exercise, can promote “abnormal changes,” Dr. Pawar said. did. In my mind, which was normal before.
Disclaimer: This article is based on information from the public domain and/or from experts we spoke to. Be sure to consult your doctor before starting your daily life.
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