Partly because we have become a sedentary society, there are more than 130 million Americans who are currently overweight or obese.
There is a consensus that one of the most effective ways to prevent obesity is to exercise regularly. Sixty minutes of moderate to vigorous sessions of exercise on a near every day basis while not exceeding the daily recommendation of calories will manage body weight as well as prevent unhealthy weight gain. Maintaining weight loss requires sixty to ninety minutes of moderate-intensity physical activity per day while not pushing beyond the recommended number of calories per day.
While it is true that daily or near daily exercise will prevent obesity as well as promote a general improved standard of health, it is equally true that 70% of adults in the United States do not engage the recommended 30 minutes of physical activity per week. Of that population, 49% state that they do not incorporate any physical into their schedules at all.
Because we have essentially become a sedentary society, there are more than 130 million Americans who are currently overweight or obese.
How Exercise Prevents Obesity
The basis for prevention of obesity through exercise is the concept of energy expenditure versus energy intake. Energy expenditure is the amount of calories burned due to the demands of the body. Phyical activity increases these demands. Energy intake is the amount of calories absorbed through eating. Equal calorie intake and expenditure results in maintained weight. When more calories are burned then absorbed, weight loss occurs, and when more calories are absorbed than burned, weight gain occurs.
To prevent weight gain, an individual should burn an equal or greater amount of calories than she absorbs.
Some Simple Suggestions
The equation for prevention of obesity is pretty straightforward: physical activity increases the numbers of calories that you burn. Instead of drafting a program that an Olympic hopeful would struggle with, start slowly and simply. The important thing is to begin.
Instead of parking as close as possible to store when going to the market, park further way. Instead of opening the door to let the dog run free in the backyard, take the dog for a walk. Instead of using the elevator, use the stairs. Instead of watching the kids play, get involved with what your children are doing.
Exercise and Genetic Obesity
Exercise has even been proved effective for combating genetic obesity.
British researchers have reviewed the data from 218,000 adult test subjects who have the FTO fat mass and obesity gene that gives a person a genetic predisposition for obesity.
It was discovered that those with the FTO gene who were physically active
were 27% less likely to become obese. These findings contradicted previous studies where it was surmised that such genetic influences were beyond modification.
The researchers believe that their findings are a boon for public health and concur that physical activity is an effective way of controlling body weight, even for those with a genetic predisposition for obesity.