CrossFit Discussion Board  

Go Back   CrossFit Discussion Board > CrossFit Forum > Nutrition
CrossFit Home Forum Site Rules CrossFit FAQ Search Today's Posts Mark Forums Read

Nutrition Diet, supplements, weightloss, health & longevity

Reply
 
Thread Tools
Old 04-08-2009, 09:45 AM   #1
Michael Draughon
Member Michael Draughon is offline
 
Profile:
Join Date: Oct 2008
Location: Mesa  AZ
Posts: 17
when does fat loss start

So were doing sports physiology in class right now and talking about the different fuels your body is using to perform the said exercise. Correct me if im wrong on any thing but from about 10 seconds to about 180secs, it is mostly anaerobic and your energy is coming from glycogen, and mostly anything after four minutes is aerobic, but does not really start to use fat as a source of fuel, until perhaps twenty minutes of work. Most of crossfits workouts are are quick and intense and may not reach twenty minutes. So one, how do we burn fat with this style of exercise, and if our body needs those carbs, why do some Zone people after a certain amount of time reduce carb intake and increase there fats? I searched this out but did not find much. any info would be great
  Reply With Quote
Old 04-08-2009, 10:05 AM   #2
Jamie J. Skibicki
Member Jamie J. Skibicki is offline
 
Profile:
Join Date: Jan 2008
Location: Pittsburgh  PA
Posts: 8,841
Re: when does fat loss start

It's not the fuel being burned during excersize, its the fuel being burned after the excerize.

Look at weight lifting. It makes you weaker. Recovering from it makes you stronger. There is more going on than what happens during the 20 minutes or so you are training.
  Reply With Quote
Old 04-08-2009, 10:24 AM   #3
Jenna Dodge
Affiliate Jenna Dodge is offline
 
Jenna Dodge's Avatar
 
Profile:
Join Date: Mar 2008
Location: Bozeman  MT
Posts: 833
Re: when does fat loss start



Also...Think about when you get hungry...during a LSD run, for example, you will probably get hungry about 1-1.5 hrs into the run. After a typical short CrossFit metcon, you probably get hungry about 1 hr after the WOD, right?

Also, you do utilize fat as fuel during anaerobic exercise...it's just a smaller percentage of energy than aerobic exercise.
__________________
Work to Eat, Eat to Live, Live to Bike, Bike to Work. Log
Blog
Bridger CrossFit
  Reply With Quote
Reply


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Best Fat Loss/Weight Loss Program Ryan Green Fitness 71 05-12-2009 09:03 PM
Expected fat loss / weight loss Richard Evans Fitness 2 04-04-2008 11:41 AM
Does this look about right for fat loss? Sean Kane Nutrition 16 03-22-2008 03:56 AM
Fat loss through changes in macronutrients Stephen Kichuk Nutrition 9 04-11-2007 10:53 AM
General Zone Question: Why start with lower fat and add fat later? Ross Hunt Nutrition 4 04-25-2006 03:37 PM


All times are GMT -7. The time now is 12:45 AM.


CrossFit is a registered trademark of CrossFit Inc.