Exercise shown to produce benefits in the absence of weight loss
Posted on 14 September 2009
Last month one of my blogs focused on the evidence which shows that exercise is, generally speaking, really quite ineffective for the purposes of weight loss. That is not to say that there
Published September 14, 2009 . Filed under: Children's Health, Diabetes/Metabolic Syndrome, Exercise and Activity, Weight Loss
[...] Original post by Dr John Briffa’s Blog [...]
September 14, 2009 @ 1:53 pm
There’s substantial evidence that growing muscle (lifting) improves glucose disposition, and using the muscle translocates glucose transporters to the cell walls ready for action – both ways of reducing insulin resistance, which appears to be backed by this paper. Presumably the non-obese children had no (or less) IR.
Of course one confounder is that is you lose fat and grow muscle you may not appear to lose that much weight. Long term though, reduced IR leads to reduced insulin levels which should make fat deposition harder – so long as you don’t exercise so hard you need to go face down in the carbs! Did they bother to tell you what they were eating?
September 14, 2009 @ 9:55 pm
In my experience working with those who have some degree of insulin resistance, it generally seems to take about 12 weeks to get control over the IR & return to some form of normal metabolic function. Once this point has been reached, then you start to see a degree of weight loss (providing all other contributing factors are also being managed). So positive study but perhaps just not quite long enough to see anything significant regarding weight loss.
September 21, 2009 @ 5:54 am
Interesting. My 13-year-old has recently been able to resume competitive sport after 2 years off following a series of leg operations. During his inactivity he put on quite a lot of weight (not surprisingly), and that weight has now all come off again. Anecdotally, I am presuming that what has happened is that he has returned to his
November 5, 2009 @ 8:22 pm