This controversial study was published in the Journal of the American Medical Association this week.  Some have seen it as pessimistic, because only middle-aged women of normal weight who also exercised avoided weight gain.  Of course, they are based on self reports of weight and exercise.  It is possible that the women who weighed more might have eaten more and exercised less than they reported.

Women successful in maintaining normal weight and gaining fewer than 2.3 kg (approx 5 lbs) over 13 years averaged approximately 60 minutes a day of moderate-intensity activity throughout the study.

Anyway, it suggests that an hour a day is key. So, get walking ladies!  And even if you don’t get an hour, every little bit helps.

Remember also:  as we age, we generally lose muscle and bone, and gain fat, even if our scale weight stays the same.  So, add some resistance training – see the exercises in Drs. Roizen and Oz’s YOU book.

Dr John Ellis MD

Board-certified anesthesiologist, with expertise in cardiovascular anesthesia and the implications of obesity and sleep apnea in anesthesia. See for professional information. Dr. Ellis has used the strategies in here to: (1) lose 120 lbs over 18 months, (2) stop all antihypertensive medicines, and (3) no longer need CPAP treatment for sleep apnea.

One Comment:

  1. At first I was bummed out when I heard about this study. But as I put on my “fat” pants today, I realize I don’t have to start at an hour a day, I just have to start!

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