There was a recent study completed by I-MIn Lee of Brigham and Women’s Hospital on  women and exercise. Her study started in 1999 and went to 2007 and consisted of 34,000 subjects. I like the fact that it is a long term study and that such a large group was used. The larger the group and longer the study the more trending can be found. There are too many studies done that last a year or even less. This shows long term effects of exercise on a woman’s body.  The average age of the women who participated in the study was 54 at the start in 1999. The participants were NOT on any calorie restricted diet or meal plan. They researcher took an estimation of calories consumed at the beginning of the study which was 1,700 per woman. Lee has a feeling that is on the low side because according to national data the typical American female consumes 1,900 calories.
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moderate intensity activity includes brisk walking. (Mike Derer/Associated Press)
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Research stats:
Subjects:Â 34,000 women
Duration:Â 13 years
Mode of exercise:Â Moderate intensity, brisk walking and jogging.
Calorie restriction or diet:Â None
Test subject groups: Women getting 60 minutes of exercise per day, women getting 30 minutes of exercise per day, women getting under 30 minutes exercise per day.
Research Findings:
13.3 % of the subjects gained an average of 5.1 pounds over the thirteen year study. They started at the age of 54 and gained only 5 lbs at the age of 67. That’s pretty good when you think about the age of the participants at which this study is being completed. Metabolism slows down dramatically for adults over the age of 35 years.Â
Overweight and obese participants who stuck to their usual poor eating habits were not able to keep weight off even while adhering to the 60 minutes per day exercise regimen. Lee states that a calorie restricted meal plan would need to be followed in conjunction with the exercise regimen.
Lee concludes by saying ” the findings shouldn’t discourage women above a normal weight to start and exercise program. They will still benefit from a reduced risk of heart disease, certain types of cancer and type 2 diabetes.”
My Review:
I find this study interesting, boring and very basic all at the same time.Â
The interesting partÂ
I find it interesting that they consider an average gain of 5.1 pounds ” able to keep the weight off.” Some women must have gained more than the average 5.1 pounds, and then some less of course.  I do like the longevity and large group of test subjects used. I also find it interesting that the modes of exercise were brisk walking and jogging. Why not use some level strength training as a part of the regimen?
 
The boring  partÂ
All things considered this is a very boring study. Walking and light jogging? No real testing done other than body weight and it was only done every three years or so. No nutritional component. I would like to see a similar study done with strength training as the mode of exercise used by the participants. I’d also like to see a study doen where there is no exercise component, but participants follow restricted nutritonal guidelines. It would be interesting to see if weight is lost, how much is lost with sound nutritional plan in place without exercise. Also, if it would be sustainable. Â
The very basic part
Everything I said that makes this study boring makes it basic also.Â
Conclusion
In today’s society people find it more difficult to adhere to a sound nutritional plan than to incorporate some level of exercise in their lives. For some reason exercise takes precedence over healthy meal planning. This study was a demonstration to see if people could continue consuming the average American diet and not gain double digit numbers of extra body weight.  It did demonstrate that women at a healthy weight going in would come out still at a healthy weight (only 5 pound weight gain over 13 years). But it did nothing for women going in overweight. With all the processed foods, fast foods and dining out that happens in the average American’s life it’s a wonder how any of us are able to keep weight off. If one thing has to give, I guess it is a healthy meal over the ability to exercise.
So, according to this study ladies if you are at a healthy weight now continue to exercise every day and you can maintain your weight for the most part.
If you aren’t at a healthy weight you need to combine exercise and a healthy meal plan.