Can fitness eliminate obesity? -Harvard Health Blog

In a recent study, researchers tried to answer the questions posed in the title of this article. Before looking at the results of this research and how it fits into what we already know about the subject, let us define some key terms.

What do health and obesity mean?

healthAlso called cardiovascular fitness or cardiopulmonary fitness (CRF), it is a measure of the performance of the heart, lungs, and body muscles. Muscle performance includes measures of strength and endurance. Due to the connection between body and mind, fitness also has an impact on mental alertness and emotional stability. Maximum oxygen consumption (VO2 pcs Maximum), the laboratory measurement of the maximum amount of oxygen that a person can use during exercise, is the best measurement of CRF.However, self-reported physical activity is often used as a substitute for VO2 pcs The highest amount in the study because it is easier to evaluate and lower cost.

As I discussed, fat In an earlier blog postIt can be defined in many different ways. The most commonly used is the body mass index (BMI), which is calculated based on your height and weight.However, we know things like Body fat percentage, Waist circumference, waist circumference to hip circumference, waist circumference to waist circumference ratio In addition to understanding physical health, metabolic risks and death risks, the information provided to us is more important than BMI. Nevertheless, because of the simplicity and relative cheapness of this measurement, BMI is most commonly used in research.

What is the purpose of the research?

Back to Recent studies Published on European Journal of Preventive Cardiology, The researchers want to study the “fat and fat” paradox. As stated in some studies, the healthy but obese paradox suggests that simultaneously active obese individuals can reduce the risk of cardiovascular disease, thereby replacing the effects of weight gain.

To resolve this contradiction, our researchers evaluated the correlation between different BMI categories and physical activity levels and three major cardiovascular disease (CVD) risk factors (hypertension (hypertension), high cholesterol, and diabetes). This is a large observational cross-sectional study that collected data from 527,662 participants at a specific time point without any follow-up.

They used Standard BMI cut-off value Divide people into normal weight, overweight and obese. The level of physical activity is as follows: no exercise (no moderate or vigorous exercise); insufficient activity (less than 150 minutes of moderate activity per week or less than 75 minutes of vigorous exercise per week); and regular exercise (150 minutes per week) Minutes or more of moderate physical activity, or 75 minutes or more of vigorous physical activity per week, or a combination of both).

What are the results of the research?

The researchers concluded that compared with not exercising, regular exercise or insufficient exercise can prevent high blood pressure, high cholesterol and diabetes. This protective measure is related to the dose of hypertension and diabetes, which means that higher activity levels can reduce the risk to a greater extent.

However, irregular physical exercise or insufficient physical activity cannot compensate for the negative effects of overweight or obesity. In other words, regardless of the level of physical activity, people who are overweight or obese have a higher risk of CVD than people of normal weight.

These findings add to the existing evidence that physical exercise can reduce (but not eliminate) the impact of overweight or obesity on CVD risk.

What does this research mean to me?

Although the results of this study may lead some people to believe that all efforts to improve health and longevity must be directed at weight management, we cannot ignore the benefits of exercise that are not related to weight, including improved energy metabolism, oxidative stress, inflammation, and tissue repair. And immunity.

Achieving and maintaining a healthy weight is very important to reduce the risk of chronic diseases, so your doctor may recommend weight loss treatments, such as behavior and lifestyle changes, medications, weight loss surgery, or a combination of the above. However, we must remember that obesity itself is a chronic disease, and the individuals affected by it often cannot control obesity immediately.

But what we can control is our level of physical activity. Whether it means running, walking, swimming, dancing or lifting light weight to you, we can move more at any time. If this can help us improve our health, or even a win-win situation, it is a win-win situation.

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