On February 6th- the Nursing Research Council at St. Joseph's reviewed a study published in JAMA in March of 2007 (Vol.297, No.9, 969-977). The study was a randomized clinical trial of 4 weight loss programs in which overweight, premenopausal women. Each group had near 80 participants who were given a book of the diet they were to follow along with 8 weeks of instruction and then followed for 12 months regarding adherence, actual nutrients consumed, affects on glucose, blood pressure and lipids as well as actual weight loss.
The diets were:
Atkins- high protein,fat and very low carbohydrate
Zone- low carbohydrate, moderate protein
LEARN- low fat, high carbohydrate based on national guidelines
Ornish-high carbohydrate,low fat
The outcome was surprising-
The Atkins diet had the highest weight loss average at 10.3 lbs
The Zone diet average was 3.2 lbs
The LEARN diet average was 5.72 lbs
The Ornish diet average was 4.8 lbs
The Atkins diet group had the lowest number of dropouts.
The Atkins diet also higher drops in triglycerides, increased HDL-C, no change in LDL-C and greater decrease in BP than the other groups.
Our discussion was lively-
First we verified that the study was not funded by Atkins Corp.- it was funded by the NIH.
We discussed that perhaps protien and fat created more satiety thus more adherance to the diet.
We are hoping the study will continue to follow the same cohorts to see what the long term effects of the diets might be.
Does the weight loss last?
Is the diet sustainable?
Long term effects on lipids?
We felt one weakness of the study was the inclusion of only premenoupasal women.
Overall though the study design was strong and we believe that the outcomes provide valuable information.
Friday, February 08, 2008
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5 comments:
great job Theresa!! As I recall a few other intersting issues we thought about were 1) in the initial selection process, a lot of potential participants decided not to participate because they weren't interested. Consequently, the final pool had a preponderance of highly motivated women. Additionally, the educational level of the final group was high and not representative of the general population.
Here's my question. If evidence based practice is the goal, what instruction should cardiac patients receive about their diet?
Onehealthpro
I got there lots of helpful content and great information. Thanks a lot for your help.
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Have gone up in smoke. I would love to know who play the four Apocalyptic Horsepersons: War, Pollution, Famine and Death. Until CHOW™ really is produced, I’ll have to go about losing weight and getting fit the old fashioned way. I did find a helpful Website of 50 weight loss tips. Many of the tips are common sense, but I find it useful to remind myself of them once in a while. For example, don’t compare yourself to others, don’t deny yourself your cravings, don’t eat until you’re full, weight loss is most successful when you
Hi, you can definitely benefit from lifting weights as I show in the video. Keep the weight manageable. You want to be able to do 12-15 reps without straining. You should feel resistance, but you don’t want to struggle as you are still young and your body is still growing a bit more and you don’t want to damage your joints or growth plates. I also highly recommend pushups which uses your body’s own resistance so you don’t have to worry. Please see my push ups video.
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