Wednesday, July 21, 2010

Low carb diet plus interval training benefits fat loss.....

High-intensity exercise and carbohydrate-reduced energy-restricted diet in obese individuals

Fourteen days of carbohydrate-reduced diet improved Oral glucose insulin sensitivity (OGIS) and fat oxidation (RER) in obese subjects.

Looks interesting.

7 comments:

Josh said...

Awesome, Science decided to test what I've been using. Did you buy and read the whole article?

Em said...

I have access to the article. Let me know if you'd like me to forward it.

Diet wasn't that low-carb, reduced from mean 304 to mean 163 grams/day, but calories were reduced to 75% of maintenance. Post intervention weight loss averaged 1 kg in both the diet and diet+exercise groups, but the diet+ exercise group didn't lose lean mass. There were other positive effects of diet+exercise, but the weight loss wasn't dramatic.

Sifter said...

.... while T-nation just this week ran an article entitled ' Intervals Don't Work for Fat Loss"

go figure.

Steven Low said...

Sifter,

Most studies:

1. Do not control for diet and,
2. Do not take into account conservation or gains in lean mass.

Obviously, regulation of diet is a huge factor in weight loss. High intensity exercise tends to stimulate a lot of appetite. Similarly, high intensity exercise is going to produce a stimulus for conservation of lean mass and also possibly gains in lean mass as well.

This does not show up in the data when they are only weighing the participants and taking caliper measurements in a lot of cases.

Anyway, you can pretty much pick apart most of the studies produced nowadays anyway... but to call intervals ineffective compared to steady state is a bit overboard IMO.

John said...

Chris, have you ever come across a study, or any information regarding the lats in sprint speed? Eric Cressey has an article (lats, not just for pulldowns) about it, but I'm hesitant to think improving lat strength would improve sprint speed (all else equal)

Chris said...

John

I've never seen anything like that. To be honest thought I tend to think that such modifications to technique might add improvement to an elite sprinter but that for most of us there are more basic things to think about. If you want to improve as a sprinter, a basic strength routine for the whole body would be good - including the lats - but don't focus in the details like lats.....

Chris said...

Em, I would indeed like to see that article.

Chris AT conditioningresearch.com


thanks