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Obesity and exercise
In this science episode, we explore studies on exercise and obesity. Does exercise help reduce obesity? Some interesting studies seek to answer that question.
A 2003 article of Journal of the American Medical Association by Drs. Frank Hu and colleagues examined the relationship between women’s BMI and their physical activity. An important term here is “Body-Mass Index”, briefly BMI which measures the relationship between a person’s weight and height. The ideal BMI for a person is between 18 and 25. So, anyone with over 25 BMI is considered overweight and below 18 considered underweight. The study took 6 years to examine 50277 women aged between 46 and 71. What the study found was really very interesting. Individuals two were sitting two additional hours a day had 23% more obesity. So, less daily movement is one of the major reasons for increase in obesity. So, someone who watches TV for two hours is more prone to obesity than another person who chooses to walk around and constantly on the move. The study report says two hours of daily walking or around the house saw obesity decrease by 9 percent and one hour of brisk walking saw 24 percent obesity decrease.
Another study also in 2003 published in the American Journal of Clinical Nutrition by Drs. Koh-Banerjee and colleagues examined 16,587 men aged 40 to 75 years who they described as healthy. The study took nice long years to complete and it was about weight and waist size. The study found that just 4 hours of weekly increase of physical activity resulted in a reduction of their waist circumference by about 1.9 millimeters. On the other hand, the men who increase their TV watching by 20 hours a week had waist size increase of about 3.0 millimeters. One of the key finding of the study was the group that exercised daily had way to less obesity than the group that did not.There are many more studies that indicate the level of activity is an important factor that determine your fitness and obesity. Consider how your activity level can be affecting your weight loss or weight gain. Obesity is at an epidemic level and it is time to change that. The change starts with you.
There are many more studies that indicate the level of activity is an important factor that determine your fitness and obesity. Consider how your activity level can be affecting your weight loss or weight gain. Obesity is at an epidemic level and it is time to change that. The change starts with you.
Music used for the podcast Intro and Outro: http://www.bensound.com/royalty-free-music
