Obesity Myths http://www.obesitymyths.com/myth1.2.htm
Obesity: Epidemic or Myth?http://www.csicop.org/si/show/obesity_epidemic_or_myth/
So if we get truly fat people to work out, their BMI doesn't change, yet their body fat decreases, muscle weight increases. All for naught.
I can see where people can be really frustrated with the results.
"According to their results, the number of people getting the recommended amount of exercise increased significantly between 2001 and 2009, and the increase was greater for females than for males. In the most active U.S. counties, the number of people exercising sufficiently rose by up to 17 percent for males and 18 percent for females. At the same time, obesity rates continued to rise throughout the country, and only nine U.S. counties saw (small) decreases in obesity. Time to cancel our gym memberships and toss out those skinny jeans — right?
What this study may point to is the crucial role of diet and nutrition in any wellness routine. In fact, new research suggests that people who think exercise is the most important factor in weight loss have higher BMIs than people who think diet is more significant .
Another potential reason for the IHME findings is the fact that the people exercising more might not have been the same people getting heavier. The study didn’t look at obesity or physical activity in individuals, but instead gathered averages from different U.S. counties."http://greatist.com/health/exercise-weight-loss-071213