Chapter 4 - Exercise Metabolism and Bioenergetics

[@joshilton616]

Thank you Jeff! I appreciate how you go deeper into certain slides and give great examples.

[@MariaJose-pf9go]

Thank you for helping with the videos! I’m on NASM chapter 4 self study! You’ve been helpful!

[@latanyaleamon5142]

I'm still lost. Especially the last 10 minds. Nasm is hard. Thankyou for trying to help us. I love your videos.

[@anaibanezzz]

Thank you, Jeff! These videos are so helpful!

[@AlexRaphael10]

Thank you so much for your content. It's helping me allot on my CPT Self study course for the NASM. God bless your soul.

[@laurenbarca9991]

Hi I am not sure if you are still responding to comments on this post but I’m a little confused as to when exactly fat is used rather than carbs within the 3 atp systems

[@DrJeffWilliams]

Hi Lauren. Fat is used under two conditions per say. The first condition is during rest and low intensity exercise. The second condition applies to when you are working out aerobically and have depleted your glycogen stores. If you have ever heard of hitting the wall, that is when the body uses fat as the primary fuel source and hitting that wall is the conversion of the body trying to convert fat to energy, which takes longer. Understand that fat is being used during any system, but just to very smaller extents than what carbs are during anaerobic work and aerobic work. I hope this helps.

[@laurenbarca9991]

@@DrJeffWilliams yes yes it does! I really appreciate the time you take to post the videos (hacking up a lung or not lol) they are so helpful!

[@MarkusBalla]

Really appreciate these videos. This is awesome to have someone to try to explain this terminology. Wish me luck as i embark on a new journey to helping people change their lives.

[@DrJeffWilliams]

Good luck man!!! It’s rewarding

[@MarkusBalla]

@@DrJeffWilliams thank you🙌

[@zaroli]

Anyway to post the PowerPoint in description for download? Thank you for video.

[@zaroli]

Don't worry about the slides. I just wrote everything down.

[@missycarta4787]

Thank you so much for taking the time to explain this!

[@brittanioconnell9290]

I'm assuming we'll probably get into this in later chapters BUT was wondering if you could give and example or two of, when you're testing the RQ of a client, how you go about conditioning someone differently to get them in the direction they SHOULD be going in depending on the individual. I hope this makes sense!

[@katieshields347]

Thanks for the videos, Jeff. They are so helpful. How can we determine which ATP replenish system is being used or best for the client? Does understanding this concept, help us understand when we have pushed a client too far and/or the client is not fueling their body properly? Where does phosphocreatine come from and is it at all related to taking creatine as a supplement? Thanks!

[@katieshields347]

Also, do you have an easy way to describe the difference between aerobic and anaerobic glycolysis? Which is better? It seems that they both produce 3 ATP. I know that aerobic glycolysis lasts longer than one minute, but it seems that since they both produce the same amount of ATP I am having a hard time understanding what NASM wants us to conclude about the difference.

[@DrJeffWilliams]

Katie, the ATP system best for the clients is dependent on what your clients are trying to complete. If they are more sprint like and powerful it will be ATP-PCr System, exercises that last about 30-120 seconds where the heart rate is up and you are now using carbohydrates is the Anaerobic Glycolytic system. Anything that lasts for 1 minute or longer and is consistent intensity is the Aerobic system. So it really depends on what the client is doing and for how long and how intense. As far as phosphocreatine, it is a phosphate and a creatine molecule. The phosphate group is from the breakdown of ATP to ADP. The phosphate finds a creatine molecule and binds to it to form PCr (phosphocreatine) and that finds and ADP which is resynthesized into ATP for more energy use. That is how we keep moving for specific times based on intensity. Creatine supplements are used to help with recovery and muscle growth. But if you supplement with it, the aim is to have more creatine available so that it can bind to more phosphates that have been broken off ATP when used for energy. I hope this helps.

[@katieshields347]

@@DrJeffWilliams So helpful and thank you for the prompt reply.

[@gelyjackson8772]

Hey Jeff! Thanks for this video, do you think we could just take notes on this video or is there any information missing here that we would only get from reading the chapter?

[@alexramos2435]

Great stuff, keep it up 🤘🏾

[@Scary_Stories_Uncovered]

Thank you so much for this over view of chapter 4!! your gonna help me so much with passing my nasm exam

[@JA-jx3sz]

THANK YOU SO MUCH FOR MAKING THESE VIDEOS

[@Dazigmeister69]

How much of this is actually on the exam? I can’t understand this whatsoever

[@DrJeffWilliams]

There is a good chunk of this on the exam, unfortunately. This is a big deal to understand what type of exercise you would be doing, why, and what stimulus you would be providing as a trainer.

[@BeeBeeMacGee]

Just need chapters 7, 9, and anything past 13 and then I have all the videos saved in order. (OCPD)

[@stephangonzales1271]

i thought chapter 2 was going to be tough... lots of new terms here