Awesome videos! I have a biology degree, work as a software engineer and I love exercise. These videos are engaging and informative even for someone that doesn't plan on taking an Exercise Physiology course or plans on going into the field. I plan on watching the whole series!
Good question. Generally speaking fat metabolism decreases at high exercise intensities and carbohydrate metabolism increases as intensity increases. Here is an article to read that shows some of the nuance with fat metabolism. Romijn JA, Coyle EF, Sidossis LS, Gastaldelli A, Horowitz JF, Endert E, Wolfe RR. Regulation of endogenous fat and carbohydrate metabolism in relation to exercise intensity and duration. Am J Physiol. 1993 Sep;265(3 Pt 1):E380-91. doi: 10.1152/ajpendo.1993.265.3.E380. PMID: 8214047.
I do not know the literature specific to body builders. I know a lot of body builders attempt long duration low intensity exercise in an attempt to primarily burn fat during exercise in an attempt to reduce muscle wasting during cutting phases. I'm not sure if these outcomes are confirmed by science or not.
I have an entire playlist about the ACSM recommendations called Exercise Assessment and Prescription Teaching. Please go find that playlist on my channel.
Thank you Dr for the great explanation.Can you explain on muscle glyogen as primary source of carbs during high intensity while blood glucose as primary source of carbs during low intensity exercise. Thankyou.
I'm glad you found this video helpful. Sorry I do not have any videos on that topic. It is also not a topic I have studied myself. If you have any good resources on it please reply with a link here.
Looking at slide 45, it appears they are talking about how long duration exercise (must be lower intensity to exercise for a long duration) relies on blood glucose from liver gluconeogenosis. If I'm understanding it correctly. This is because the muscle has already ran out of muscle glycogen. Not because low intensity exercise itself causes you to use blood glucose instead of muscle glycogen. This may be true too, I don't know. However, I don't believe that is what that slide is trying to say.
About the concept of low intensity exercise and fat burning. If one keeps the level of intensity low enough relative to one´s VO2 max, then one can maintain that level of exercise for longer and don´t burn out fast and therefore be able to burn fat for longer as energy source. Doesn´t that make sense, especially at low level of VO2 max and low LTP? Thank you
Sir ,thanks for these valuable informations. I have some doubt.By your informations, protein metabolism high in intensity workouts.but prolonged exercises has 5% break down of protein than short duration exercise. By this what should be the ideal intensity and duration for a bodybuilder to lose fat.
A very informative lecture..
Thank you!
Awesome videos! I have a biology degree, work as a software engineer and I love exercise. These videos are engaging and informative even for someone that doesn't plan on taking an Exercise Physiology course or plans on going into the field. I plan on watching the whole series!
I'm glad to hear they are being helpful!
Regarding 21:40 "fat metabolism goes down," does the body use less fat as RER increases or is it the percentage of fat that goes down?
Good question. Generally speaking fat metabolism decreases at high exercise intensities and carbohydrate metabolism increases as intensity increases. Here is an article to read that shows some of the nuance with fat metabolism.
Romijn JA, Coyle EF, Sidossis LS, Gastaldelli A, Horowitz JF, Endert E, Wolfe RR. Regulation of endogenous fat and carbohydrate metabolism in relation to exercise intensity and duration. Am J Physiol. 1993 Sep;265(3 Pt 1):E380-91. doi: 10.1152/ajpendo.1993.265.3.E380. PMID: 8214047.
thanks
Hi dez945able. I hope it helped.
hi, what would be optimal to burn fat for bodybuilder 70? 80, or 9o of max thanks
I do not know the literature specific to body builders. I know a lot of body builders attempt long duration low intensity exercise in an attempt to primarily burn fat during exercise in an attempt to reduce muscle wasting during cutting phases. I'm not sure if these outcomes are confirmed by science or not.
Sir pls upload video for ACSM course.
I have an entire playlist about the ACSM recommendations called Exercise Assessment and Prescription Teaching. Please go find that playlist on my channel.
Thank you Dr for the great explanation.Can you explain on muscle glyogen as primary source of carbs during high intensity while blood glucose as primary source of carbs during low intensity exercise. Thankyou.
I'm glad you found this video helpful. Sorry I do not have any videos on that topic. It is also not a topic I have studied myself. If you have any good resources on it please reply with a link here.
@@VivoPhys I've read about it on this website, pg 45 www.slideshare.net/omarou18/exercise-metabolism
Looking at slide 45, it appears they are talking about how long duration exercise (must be lower intensity to exercise for a long duration) relies on blood glucose from liver gluconeogenosis. If I'm understanding it correctly. This is because the muscle has already ran out of muscle glycogen. Not because low intensity exercise itself causes you to use blood glucose instead of muscle glycogen. This may be true too, I don't know. However, I don't believe that is what that slide is trying to say.
@@VivoPhys Okayy thankss!
About the concept of low intensity exercise and fat burning. If one keeps the level of intensity low enough relative to one´s VO2 max, then one can maintain that level of exercise for longer and don´t burn out fast and therefore be able to burn fat for longer as energy source. Doesn´t that make sense, especially at low level of VO2 max and low LTP? Thank you
Thanku sir for information
I'm glad it helped.
What percentage of fat to carbohydrate would you expect to burn at lactate threshold ? or would it depend person to person ? great videos by the way
Thank you. I believe it would very by person.
Sir ,thanks for these valuable informations.
I have some doubt.By your informations, protein metabolism high in intensity workouts.but prolonged exercises has 5% break down of protein than short duration exercise.
By this what should be the ideal intensity and duration for a bodybuilder to lose fat.
life savior
Amazing explanation , thank you.
ya