lactic acid as fuel?
151
Member
1272 days
jsoder posted 2 years ago.
Woah! Is this true?? It makes sense to me and seems credible enough...wait...this IS the NY Times...maybe we should wait for a third-party confirmation....he he he. It doesn't really change anything, but it does raise some more questions for me: I thought that our mitochondria used ATP (adenosine triphosphate) for energy. Now it says they are processing lactic acid?? Anyone run into this information before?
Jeremy
6
Member
931 days
NBS 4life posted 2 years ago.
Well Atp is the bodies primary source of anaerobic energy. Lactic acid is produced as a waste product of oxygen transfer in the muscle. Lactic acid generally cant be used as fuel from what I have learnt but I could be wrong. Let me consult my Exercise prescription notes from last year and I can tell ya!
1841
Member
1089 days
tri-ac posted 2 years ago.
it doesn't actually say how the fuel is helpful or how to take advantage of it. i wish there was more to the article. it suggests intense training. does that mean sprinting helps long distance? or is hammering for an hour or two more beneficial? it kinda leaves you hanging... it is interesting to hear that this study has been around for a while. I wonder why it's not taken root better...?
Adam
Tri-ac
113
Member
1265 days
outexan posted 2 years ago.
Yes lactic acid can be converted to a substance that could be used as fuel but this is EXTREMELY inefficient...this doctor is correct but using glucose is much more efficient and buring fat is the most efficient. the lactic acid will cause a buring feeling in your muscle and too much of it decreased the firing rate of your muscle fibers so lactic acid still equals bad!!!
Help me raise money for the LAF by donating anything that you can. Thank you so much!
http://www.livestrong.org/grassroots2008/ironmanchris
3354
Member
1412 days
RV posted 2 years ago.
The article left more questions than it answered. Sounds like the training methods employed are still the correct ones - but just for a different reason. :confused:
RV
It takes a long time to get good. - Scott Molina
Slow is smooth; smooth is fast. - Rich Strauss
46
Member
1165 days
BIGNEW posted 2 years ago.
Good read, but it really just opens the question, it doesn't really make one understand what is going on.
Yes, lactate is used as a fuel. We all make lactic acid as a byproduct of metabolism. That is how we remove it at sub-threshold intensities. As intensity increases, however, higher and higher levels of lactic acid are produced from glycogen synthesis or glycolosis (big word for the day, meaning the conversion of glycogen to energy). To my knowledge, the factor that causes the muscle to shut down is not lactic acid production, but lactic acid accumulation. Training at or near lactate threshold -- that point where more lactic acid is being created than is being burned as fuel
-- increases our ability to burn higher amounts of lactic acid. A well trained athlete can exercise at levels well about threshold for a long time.
Elite triathletes will race an entire Olympic distance race (~2:00) at 10-20 bpm over LT. Most beginner athletes, however, will have a difficult time sustaining a super-threshold intensity for even a few minutes.
So, yes, lactic acid is fuel. Even at intensities about LT, it is still fuel. Training aerobically, especially just below LT will increase our abilities to burn even more lactic acid as fuel.
247
Member
1470 days
o2Ripper posted 2 years ago.
Based along the same lines, is anyone familiar with ENERVIT? They were handing em out like candy at Wildflower. Any criticism?
-Branden
"Its an addiction"
398
Member
1200 days
TBRAVO posted 2 years ago.
What about interval training? The article mentions it briefly as a good thing.
There seems to be a lot of conflicting information around though on interval training.
How long, how often, how intense, etc. etc. I read somewhere that it should be incorporated only about every 8 days?
What is everyone’s strategy when it comes to interval training?
- T
Here is an article from the new york times about lactic acid and its role in muscle fuel. Check it out.
http://www.nytimes.com/2006/05/16/health/nutrition/16run.html?_r=1&oref=slogin
Trevor Douglas YOU ARE AN IRONMAN!