Hiển thị các bài đăng có nhãn fitness. Hiển thị tất cả bài đăng
Hiển thị các bài đăng có nhãn fitness. Hiển thị tất cả bài đăng

Thứ Sáu, 14 tháng 8, 2009

Why Should People Walk or Bike to Work?

Exercise forms an integral part in the prevention of heart disease and many other ailments. However, many of the working people are being pressured by heave workload that they can hardly find time to engage in any form of exercises or physical activities.

A large study in United States for health and commuting found that walking or biking to work, even partway, can boost physical fitness but sadly, very few Americans actually do it. In fact, only about 17 percent of workers walked or bicycled any portion of their commute.

According to experts, things like crumbling sidewalks, lack of bike paths and long distances have prevented American commuters from walking or biking to work.

Researchers from University of North Carolina at Chapel Hill examined the tests and questionnaires from 2,364 workers (middle-aged city dwellers) who were part of a larger federally funded study on heart disease risk. These participants, who lived in Chicago; Minneapolis; Birmingham, Alabama; and Oakland, California, were asked in 2005-2006 about their commuting habits in the past 12 months

It was found that those active commuters did better on treadmill tests of fitness, even after accounting for their leisure-time physical activity levels. This indeed suggested that commuter choices do make a difference.

In the study, the male active commuters also had healthier numbers for body mass index (BMI), blood pressure, insulin and blood fats (known as triglycerides). On the other hand, the researchers speculated that women walked or biked shorter distances and they may have done so less vigorously

The researchers acknowledged that the study has a chicken-and-egg problem. People, who are already active, could be the ones who walk or bike to work. In other words, fitness contributes to wanting to walk to work; nevertheless, the reverse might also be true.

Prior research has found that those countries having the highest levels of walking and biking also have the lowest levels of obesity. Nevertheless, little research has done to examine the health of Americans who walk or bike to work. The new study may be the first large US study of health and commuting.

Many cities in United States, workplaces are separated from homes that lengthen commutes. However, cities like Portland, Oregon, that build bike paths have higher rates of cycling. Meanwhile, companies can provide showers, changing areas and secure bike parking to encourage active commuting.

Thứ Bảy, 28 tháng 3, 2009

Is Distance Of Fast Food Outlet From School Related To Obesity?

Obesity is a serious health issue as when one is overweight or obese, many medical conditions such as heart disease, high blood pressure, diabetes, and even certain types of cancer will eventually come into picture. Worst still, the obesity rate seems to increase rapidly among schoolchildren and teens. Unhealthy lifestyle like eating too much fast food and physically inactivity are frequently blamed to cause such epidemic.

Just imagine, if there is fast food restaurant within about 500 feet (150 meters) of a school, then there will be at least 5 percent increase in the obesity rate in that school. This is revealed in a study by economists from Columbia University and the University California, Berkeley. They also suggested that a ban on fast foods in the immediate proximity of schools could have a significant effect on obesity rates among affected students.

In fact, a study reported in December 2008 that youth who study within a half mile (800 meters) from a fast food outlet ate fewer fruit and vegetables, drank more soda and were more likely to be obese than students at other schools.

Released by the American Association of Wine Economists during March 2009, the current study focused on the ninth graders, typically about 14 years old. According to the researchers, it might be good policy to have a fast-food-free zone since fast food near school causes obesity. After all, such policy does not deviate too much from existing ones aiming to suppress consumption of soft drinks and junk foods in schools or to improve quality of school lunch.

Such argument definitely makes those in the fast food business unhappy and immediately draws objection from them. They point out that it is the duty of the parents to limit their children’s allowance or let them know when and where they should not eat certain things. Furthermore, they also clarified that their menus have been changed in the last 5 years. For example, more healthy options are now available to include slices of apple, milk instead of sodas. In other words, the fast food restaurants have strived to diversify their menus and make them healthier.