TIM NOAKES b | Body can adapt from carb to fat burning: At ALL LEVELS OF INTENSITY TRAINING

http://www.DoctorsToTrust.com
@doctorstotrust3552
presents episode 1131 | Dr Tim Noakes
Levels podcast

Real learning from this study:
-after each race: measured oxygen & RQ [respiratory quotient]
-to measure carb & fat oxidation
"The more sprints they did, the higher fat oxidation went up!"
-VO2 max was 86%
-but, text books say: at 85% VO2 max
will burn no fat
-this was highest fat oxidation in
history at the very point they were
not supposed to be burning fat!

Shows that muscle glycogen has no obligatory role during
exercise--even at these extremely high intensities...
Look at original studies, Scandinavia, 1967, claiming that there
is an obligatory role for muscle glycogen...
-at point of exhaustion, all had low
muscle glycogen, blood glucose level
was incredibly low

Scandinavian studies...
-at point of exhaustion:
-high carb; mixed carb; low carb athletes
-big differences in muscle glycogen; fat oxidation; carb oxidation
[which doesn't fit the model]
Not different?
-blood glucose concentration
"This was the LIMITING FACTOR"

More studies showed:
-take high carbs during or before exercise:
you sub a bit more carb for a bit less fat
-the kilojoules are absolutely MATCHED, so
"If burn extra 8kj/min of carbs;
you burn 8kj/min of fat less

We have been told, since sports drink
industry got involved [1980s]...
They said: that is the difference!
you burn extra carbs during race that makes you perform better
"But, how does burning 8kj/min carbs
[only 15% of energy] so special?
-you can make that up burning fat
-it is now proven that you CAN
-but, in this case, all groups were
hypoglycemic
-it is blood glucose that is obligatory
fuel, not muscle glycogen

What this shows us, with new measurement understanding...
-body can adapt from carb-reliance toward fat-reliance
AT ALL INTENSITIES OF EXERCISE
-was believed [and promoted by sports drink funds] that
above certain threshold [85% VO2max]
you have to run on carbs

||||||||||||||||||||||||||||||||

doctorstotrust.com
levelshealth.com

Original Youtube: https://youtu.be/KGHZ8a766Mw?si=ZyIMoJk1pHmTVoea
This site will never use corruptible, epidemiological survey research as causal science.
For each short/sharable video, the original Youtube links are provided

None of this content is intended to be individual, personalized medical advice.

We hope you find value for yourself in these short videos &
find them easy to share with loved ones!

DISCLAIMER
The DoctorsToTrust videos are for general informational purposes only
and do not constitute the practice of medicine, nursing or other
professional health care services, including the giving of medical advice,
and no doctor/patient relationship is formed. The use of information on this podcast
or materials linked from this podcast is at the user’s own risk.
The content of this podcast is not intended to be a substitute for
professional medical advice, diagnosis, or treatment. Users should not disregard or
delay in obtaining medical advice for any medical condition they may have and
should seek the assistance of their health care professionals for any such conditions.