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How does your body use energy while exercising?(10 posts)

How does your body use energy while exercising?PODIUMBOUNDdotCA
Sep 16, 2002 4:58 PM
I'm just wondering how your body uses energy while exercising. I have asked a number of questions about this and am coming to find out that no matter what it is almost impossible for your body not to dip into fat reserves but at the same time it also dips into protein (which I assume is muscle) on top of musle/liver glycogen stores. Is there anyway to limit the use of protein? Or is it even enough to worry about? I am a sprinter so my concern is the endurance portion counteracting what I do in the weight room.

Thanks,
Nick
PodiumBound.ca
RelaxKerry
Sep 16, 2002 5:42 PM
Your body is always using fat, carbs, and protein, in proportion to their availability, your personal biochemistry, and what it is "used to." The amount of protein use is minimal if you have food in your system, so the only time you have to worry about burning XS protein is if you're trying to exercise hard on an empty stomach.
re: How does your body use energy while exercising?tao
Sep 16, 2002 5:54 PM
Yes that's correct, it's impossible to stop your body from burning fat at any time, as well as glycogen/glucose and protein. In fact you're also always anaerobic to some extent, i.e., there's lactic acid in your blood. The body seems to desire an all systems go approach even if only very limited in quantity. I guess it's quicker to increase an already running system than start from scratch. Even if you've depleted all storage of sugars you're body has the ability to transform stored fat into glucose, albeit at a slow rate.

As I understand your question, you wish to minimize the amount of protein burned. The easiest way to ensure this is make sure your glycogen/glucose stores are sufficient both for exercise as well as the couple hours afterward. If you're worried after a long/hard workout that your stores may be low be sure and eat a fair amount of carbs ASAP afterwards. I think 1/2 gram per pound is quoted most often. This will keep your system from turning on itself and burning protein as fuel. Also try and eat protein, 1/4 as much as the carbs, afterwards to assist with the repair/rebuild of damaged muscle.
I keep losing weightishmael
Sep 16, 2002 10:42 PM
I eat as much as my tastebuds will allow and it isnt enough. I've lost 15 pounds. I'm now skinnied down to a scrawny 140, and maybe 137 after a long ride. I eat non-stop, my co-workers talk about me. When I started working(about 2 weeks ago) I told the boss that I had a medical condition and needed to eat every three hours or else I'll start to flip out and get irritable(which is somewhat true). Not only am I famous for eating alot, but eating really slowly, so its even harder to get stuff down to my stomach. I've recently started drinking a muscle drink, I forget the name, filled with calories. Is this my best route? Which ones do you recommmend? My use of the word "ones" a minute ago, did you notice that, is it only my family or is it a lower class british thing? Yea I think kind of old English background or irish or maybe white african Sometimes I go into debt and I have to spend moments with a bowl of something beside me that I constantly nibble at for sometimes beyond an hour(I'm doing it now, thats the time I'm on this machine). Do I need a fat cushion? Is marijuana a good idea? It's non-stop yogurt,granola,raisin bread with humus,and cereal. And thats just between meals. Should I go with more fat, I try but just down like fatty cheese steaks, fries,pizza, or much cheese. I'll eat lots of eggs and fish, but most other meat kind of grosses me out, especially if I have to cook it. I think if i grabbed a chicken from the back yard and cut its head off, plucked it and threw it on the barbie I'd be less grossed out than by neatly arranged legs in styrofoam with skin tight plastic wrap. Anyway, whats lance eat, whats lance read, whats lance watch,what's lance on? I'm begining to feel they're all on drugs and it aint marijuana to gain weight. Whats best for me doctor?
look hereRich_Racer
Sep 17, 2002 1:06 AM
Lot's of good stuff about energy use and nutrition (and other cycling stuff) here:

http://www.cptips.com/toc.htm#table
look here...CPtips: Ishmael/Podium: RICE. 2x per day. NMSpunout
Sep 17, 2002 3:36 AM
maybe add a bit more fat but not saturated fats (cheese, fried fOld_school_nik
Sep 17, 2002 2:59 AM
instead try slowly adding a bit more unsaturated fat to your diet - olive oil, nuts, dried fruit - all very high calorie - also get yourself a copy of Nancy Clarkes "The Athlete's cookbook" that will give you some ideas.

For example - a real NYC sized bagel (large) with natural peanut butter is almost 1000 calories. That is about 60% carbs and 20 percent protein and 20% fat (maybe alittle more fat) Anyway, if you have breakfasts like that along with a glass of OJ and a banana you are getting up near 1200 calories for breakfast - obviously, its a bit heavy on the stomach - so don't pound it all at once eat slow like you say you do.

I'd lay off the THC as far as riding and diet goes it probably won't help much.

-Nik
THC:Ish, come to Canada, get doctor's note and twist 'em up! NMSpunout
Sep 17, 2002 3:38 AM
no more for me thank youishmael
Sep 17, 2002 5:47 AM
I feel like I've regressed about one year in my quest to go pro. I was up till 4:30(I cant sleep when stoned for some reason, mind keeps going). A couple puffs on a blunt, one cigarette, and a couple swigs of nice beer, and I need a day to recover. Maybe I'll make it a "recovery day" and smoke lightly, just enough to get the brain juices slightly flowing.
I keep losing weightoff roadie
Sep 17, 2002 8:58 AM
Until recently, I had similar "trouble" as you. I'm 6'2", and I never broke 175 lbs until this summer.

One thing I found was, I didn't really used to do muscle building excersize. Compared to others on this list, I still don't do a lot of excersize, but my rides are now more intense and somewhat longer than they used to be. I'm in pain from lactic acid buildup more often, get occasional cramps, etc. That's what it takes to build muscle, I guess...

Also, if your metabolism isn't geared to weight gain, it actually is pretty hard to eat to much (or even just enough), and its more important to make sure you eat the right stuff. As you note, you are loading lots of carbs, which doesn't really help muscle building even if it does fuel excersize. You need protien, and a pretty good amount of it. I suggest fish- a big pan filet every day should do. Its cheap and you can fix it many ways.
Protien suplments are OK as just that, but don't use them to replace hihg protien meals. My current fave is Mass Fuel from GNC. They are discontnuing it, so you can get it super cheap! Its an all-egg protien, which is great for me since I'm lactose intolerant (maybe another reason I've always been thin: no dairy = no fattening restaurant food). Although it is sold as a post-workout drink, the only carb in Mass Fuel is maltodextrine, which makes it a pretty good pre-workout drink for long rides- and the protien you eat before a workout is better burned than your bodies own reserves! The calorie count is pretty damn high, and its tastey, which should be good for some weight gain in itself...

Anyhow, it could just be age, but I've gotten up to 180 or 185 lbs for the first time in my life, and am excersizing more than ever before. I'm definately stronger than I was, though my endurance has suffered a bit due to unrelated medical conditions. Your results may vary, but I think a steady long term diet (at least a month) of lots of carb and protien should result in some muscular weight gain. Its kind of a no brainer, actually, since that's exactly how they put meat on farm animals....