That table comparing Slow oxidative, Fast oxidative, and Fast Glycolytic muscle fibers would've been REALLY helpful for AnP last semester haha. Excited to learn more!
Great overview of how the muscles interact with the nervous system. It's fascinating to consider how muscles that require great precision may have few muscle fibers vs musces that require less precision may have several hundred fibers.
I thought the emphasis on how muscle spindles and the GTO benefit our body during training was super valuable information and definitely something we don't think about often enough.
another really good review of anatomy last year! I liked that at the end it was all connected back to how this is useful for a strength and condititioning coach
I have always found myself so amazed by the abilities of our body to unconsciously react to things as it does with the golgi tendon organ and stretch reflex! So glad it does!
Dr. Goodin, the most interesting thing about this video to me was the difference between the type I , type IIa and type IIx. I love that I can reference these videos as I can listen to it in the car, when I cook, and to repeat it if I missed something.
This was a great review of action potentials and how the induce contraction of a muscle cell! Specifically, this was a great reminder of the summation of action potentials in muscle cells, thanks for your help!
This video was informative and a good refresher on muscle fiber types and how the nervous system controls muscle contractions through motor recruitment. I also appreciate the charts that were given throughout this video.
I really enjoyed how you went over the different muscle fiber types and applied them to actual athletic events because it made it very relatable to me so it made it easier for me to understand.
I found the table in this video that covered the different muscle fiber types to be very helpful. The table makes it easier to distinguish between these muscle fiber types!!
I liked the way that you explained the Golgi Tendon Organ. I have learned about this in other classes and I feel that you broke this down in an easier way to understand.
I really liked how you included the part about how we can then apply this knowledge of muscle spindles and the recruitment into training athletes to improve their force production. Thank you!
I think this is a great video, especially for students who have already taken A&P and needed a refresher. The section about the GTO clarified a lot for me; shoutout to the GTOs!!
The way that you explained the different types of muscles fibers was very helpful! Especially when you addressed the strengths and weaknesses of each one.
Rate coding made more sense than I expected it would! The video and diagrams (and maybe rewatching the chapter) really helped me think through the concept.
The distinction between each muscle fiber type was especially helpful when going over real life athletic events. It helped me conceptualize the information better.
It was interesting learning more about motor units and their impact on the human body. It was also very helpful that you use real-life examples of when the types of muscle fibres will be activated.
This video was really interesting. I liked the force production section and learning like how heavier load training helps activate more motor units at the same time and produce faster rate coding.
Fantastic content. You know what you're talking about, are calm and intentional in your language. An easy listen because of all of those things. So happy to have found your channel!
I really liked the section of video where you broke down the muscle fiber types with major characteristic was really helpful for me! I will definitely be using this for future reference.
This video did a good job of demonstrating how the muscular system interacts with the nervous system. It was a great refresher from A&P and I will probably be watching this video again in the future.
I agree, first time watching this through is sort of overwhelming. I am excited to come back to these videos a little later into the class and see how much easier it is to understand after good practice with it
this video really helped clear some things up that I needed a refresher on from A&P. The visuals are incredibly helpful for me as well as the "key points" slides.
Best thing about these videos is that I can just pause, rewind and really soak in what you’re talking about on my own time. Like the all or none principle was pretty cool to learn about.
Really loved the table that had all of the characteristics of the different muscle fibers. Super helpful for fully understanding the differences between the different types.
This video helped me gain a better understanding of how motor units are recruited. I now understand that force output of a muscle can be through a change in frequency activation of the individual motor units, a change in how many motor units are activated, or a combination of both.
The breakdown of the muscle fiber types in correlation to different sporting events was very interesting and fun to learn and think about. Great video and breakdown of the neurons as well.
I liked how you went over the steps that occur at the NMJ and I also liked how you went over the chart of the different muscles fibers and how they differ.
I appreciated how you applied the information presented to athletes and their performance! It helped me see the information through a different perspective.
The stretch reflex is a vital loop which enables us to have faster contraction and reaction to stimuli. The feedback look comes from the spinal cord rather than the brain allowing for quicker reflex. Super cool to learn about this process which our bodies do automatically.
The graph was very helpful when it came to understanding fast-twitch and slow-twitch! First time hearing of these terms and I feel like it will be an easy topic
I enjoyed learning about the stretch reflex and how it is much more reactive, allowing the body to react quickly and subconsciously to external stimuli placed on the muscles. I am excited for when we learn later how to use this strategically. Thank you!
I really enjoyed the reminder of the different muscle fiber types, the chart included was very easy to understand the difference between each one. I also liked the connection we see with lifting and our nervous system, like the GTO, to prevent us from injuring ourselves from lifting.
I also thought the chart was helpful. It's a great way to compare the characteristics of each muscle fiber type very quickly and can also be a great tool to learn about the fiber types.
I really liked your explanation of the golgi tendon organ and how it is discharged when there is an extremely heavy load which makes the muscle relax instead of possibly tearing.
I was a little concerned at first because I didn't remember 'rate coding' at the start but this video walked me through the concept so now I have a better understanding than I did previously.
I remember hearing about the "all or nothing principle" and while you were explaining it I was wondering about how it relates to different strengths, etc. and then you answered it shortly after! Very interesting stuff. I also never heard of the GTO, and it was really cool to hear about its importance and protective properties while training!
I like how we took the time to dive deeply into these last two topics, I feel like its going to help us learn better for the rest of seamster. Also I feel like a couple of us needed the refresher.
As someone with high school anatomy and KIN1001 as my only background, I found this information super interesting and helpful. I'm interested to learn more about slow and fast twitch fibers!
The role of the GTO is fascinating. Rather than continuing to push through a movement, our body recognizes that there is a certain threshold in order to prevent muscle tears.
I liked how you showed how the body isn't totally homogenous in terms of motor neurons and how places like our eyes and face don't have that much since they are needed for precision while our legs have much more since they don't have to be that precise but also have to generate lots of force to be able to move us. Also I thought it is pretty cool how you explained how the GTO and muscle spindles all send and receive their signals from the spinal cord to make a reflex in order to protect the body. I also love how you relate this to real life athletes since it makes it much easier to picture and understand the differences between a fast twitch muscle and a slow twitch one.
What I liked about this video was being able to see the recruitment and rate coding chart given. I was able to visualize the faster the force output, the motor unit will move from #1 to #2 and so on.
I found it super interesting when you were talking about the frequency and rate that motor units are activated and how it directly related to the force produced in a muscle.
I enjoyed learning different techniques that athletes can use to improve force production because it is putting all the nitty gritty together and making it applicable!
I appreciated how you explained that the body isn’t uniform when it comes to motor neurons. For example, areas like our eyes and face have fewer motor neurons because they require precision, whereas our legs have more motor neurons. This is because the legs need to generate significant force for movement, even though precision is less critical.
Learning about the all-or-none principle was very interesting. All of the muscle fibers in the motor unit are able to contract and develop force at the same time.
It was very interesting and helpful to talk about the different types of muscle fibers and what they each do. This was a good review from my previous classes and helped to keep this information fresh in my mind!
I find differentiating between the muscle fibers to be interesting and incredible important when it comes to the varies types of athletes. Another point from this video that I found interesting is in regards to the neuromuscular system and how using heavier loads can optimize neural recruitment. I find this concept to be interesting and I appreciate all the information in this video!
I thought the difference between commonly known muscle tone and actual muscle tone regarding tension throughout the muscle was a very interesting distinction. Also really liked to hear about how athletes can work specifically to increase force production.
I've always found it interesting that muscles with great precision have fewer units per neuron, because it makes sense but I think it's neat that our muscles are structured differently depending on their purpose. I appreciate the distinction about action potentials and how it is the frequency that determines strength of a muscular contraction and not intensity of one AP.
Thanks for these videos. I will be taking my CSCS exam in the next couple of days and it helps for me to listen to it when I drive to work. Question: do you have your students look at the videos and comment for a grade? Lol
I think it's really cool how the muscle spindles' function is able to bypass the brain needing to signal our muscles to move in order to move quickly, and with precision when the stretch reflex is activated.
I really enjoy learning about the different types of muscle fibers. I think it's so interesting that different types of physical activity (such as long distance running compared to a sprint) require different types of muscle fibers.
I think that explaining how we can use the muscle spindle and GTO reflexes that are meant to prevent injury to our advantage is very valuable. As we train the muscles, we also train the reflexes to allow us to do more with our bodies.
The reflexes involved in sudden loaded stretches are very interesting, and it is awesome to think about how we can use the stretch-shortening-cycle to improve athleticism.
Thank you for explaining how the rhythm of twitches relates to athletic performance. For example, how Type 1 (slow twitch muscle fibers) are common among distance runners and how fast twitch is more common among sprinters and throwers. Great example of the differences especially since sports like track and field include all of these different events though the training for each is very different.
The all-or-none principle was interesting to learn about. Even though our body might produce a stronger action potential it would not necessarily produce a stronger contraction which is very intriguing.
I thought the slide covering the muscle spindle in relation to the spinal cord was super interesting and helpful. It is interesting to think that all of these mechanisms are happening each time a muscle is contracted.
It's crazy how based on what you do as an "athlete" and the way you train is what type of muscle fibers you predominately have. Shows how complex the body is and how adaptive muscles can be.
The proprioceptors were so interesting and how there are fast neurons that only go to the spinal cord to give them quick commands. The GTO was the most interesting to me because its protecting the muscle from damage!
My favorite part of the video was when you talked about how athletes can apply this knowledge to their training. It kind of gives a better reason to understand something this specific when coaching seems to not usually look this deep into things.
I think the difference between stretch reflexes from the spinal cord and what we think of as "reflexes" (repeated trained actions that the body may perform subconsciously) is very interesting :)
I find it interesting to hear about the functional capacity of muscle fibers and how no two people have the same distribution of muscle types in their body.
It is fascinating to see how some muscles that are so precise only have one muscle fiber per motor neuron where others that are less precise can use hundreds!
That table comparing Slow oxidative, Fast oxidative, and Fast Glycolytic muscle fibers would've been REALLY helpful for AnP last semester haha. Excited to learn more!
I agree, I would have loved to have this chart in previous courses.
It continues to amaze me how fast these processes occur, specifically the Ca ions moving in and out of the SR.
Me too! Crazy to see how these events can be broken down and talked about for a while, when it all happens in a second or less!
I agree, so much in such little time!
I know right? Hundreds of times per second is insane to think about.
Sir, you are a saint for making these videos. And without constant ad interruptions... you are very generous.
I appreciate it Douglas and am happy that these are helping you out! Feel free to share them with colleagues. More videos coming soon!
Great overview of how the muscles interact with the nervous system. It's fascinating to consider how muscles that require great precision may have few muscle fibers vs musces that require less precision may have several hundred fibers.
I agree! I thought this idea was the other way around.
I thought the emphasis on how muscle spindles and the GTO benefit our body during training was super valuable information and definitely something we don't think about often enough.
I thought the same thing!
I agree! Especially considering how it protects us from injury under extreme loads.
This video was a good review on the neuromuscular system from A and P but included more detail like recruitment and rate coding.
I agree! The information is explained in detail and is straight to the point.
another really good review of anatomy last year! I liked that at the end it was all connected back to how this is useful for a strength and condititioning coach
I have always found myself so amazed by the abilities of our body to unconsciously react to things as it does with the golgi tendon organ and stretch reflex! So glad it does!
Crazy how it helps prevent injury.
The more I learn, the more amazed I am about the human body!
Same here! Our bodies ability to unconsciously preform is incredible!
Yes! I didn't know what the GTO was before this lecture. To hear about its importance in injury prevention is mind blowing.
Dr. Goodin, the most interesting thing about this video to me was the difference between the type I , type IIa and type IIx. I love that I can reference these videos as I can listen to it in the car, when I cook, and to repeat it if I missed something.
This was a great review of action potentials and how the induce contraction of a muscle cell! Specifically, this was a great reminder of the summation of action potentials in muscle cells, thanks for your help!
This video was informative and a good refresher on muscle fiber types and how the nervous system controls muscle contractions through motor recruitment. I also appreciate the charts that were given throughout this video.
I really enjoyed how you went over the different muscle fiber types and applied them to actual athletic events because it made it very relatable to me so it made it easier for me to understand.
I found the table in this video that covered the different muscle fiber types to be very helpful. The table makes it easier to distinguish between these muscle fiber types!!
I liked the way that you explained the Golgi Tendon Organ. I have learned about this in other classes and I feel that you broke this down in an easier way to understand.
This has many helpful examples of how the different muscle fiber types work and their specific benefits and purposes
I really liked how you included the part about how we can then apply this knowledge of muscle spindles and the recruitment into training athletes to improve their force production. Thank you!
I think this is a great video, especially for students who have already taken A&P and needed a refresher. The section about the GTO clarified a lot for me; shoutout to the GTOs!!
The way that you explained the different types of muscles fibers was very helpful! Especially when you addressed the strengths and weaknesses of each one.
This video did a great job of explaining the different types of muscle fibers. Thank you for using examples to help better differentiate them.
Rate coding made more sense than I expected it would! The video and diagrams (and maybe rewatching the chapter) really helped me think through the concept.
I agree! Having some sort of visual aid always helps make things clearer.
I agree!
The pictures were very helpful, and I feel like him annotating them also helped a lot.
The distinction between each muscle fiber type was especially helpful when going over real life athletic events. It helped me conceptualize the information better.
It was interesting learning more about motor units and their impact on the human body. It was also very helpful that you use real-life examples of when the types of muscle fibres will be activated.
This video was really interesting. I liked the force production section and learning like how heavier load training helps activate more motor units at the same time and produce faster rate coding.
Fantastic content. You know what you're talking about, are calm and intentional in your language. An easy listen because of all of those things. So happy to have found your channel!
I really liked the section of video where you broke down the muscle fiber types with major characteristic was really helpful for me! I will definitely be using this for future reference.
The graph that you showed with the differences in fiber types was really helpful in learning the differences between each fiber type.
Once again this was a great fresher video when it comes to muscle fibers and proprioception! This Information is all coming back to me , thank you !
This was a great refresher of how the different neurotransmitters work to activate muscles.
This video did a good job of demonstrating how the muscular system interacts with the nervous system. It was a great refresher from A&P and I will probably be watching this video again in the future.
I agree! I'll watch it again in the library with you
I agree, first time watching this through is sort of overwhelming. I am excited to come back to these videos a little later into the class and see how much easier it is to understand after good practice with it
I agree!
this video really helped clear some things up that I needed a refresher on from A&P. The visuals are incredibly helpful for me as well as the "key points" slides.
Loving the specific yet clear explanation for each subject. Especially with the examples included.
I really liked the table that you put in for the characteristics of different muscle fiber types! That was very helpful
Best thing about these videos is that I can just pause, rewind and really soak in what you’re talking about on my own time. Like the all or none principle was pretty cool to learn about.
Dr. Goodin videos are epic!
I agree!
Really loved the table that had all of the characteristics of the different muscle fibers. Super helpful for fully understanding the differences between the different types.
This video helped me gain a better understanding of how motor units are recruited. I now understand that force output of a muscle can be through a change in frequency activation of the individual motor units, a change in how many motor units are activated, or a combination of both.
The breakdown of the muscle fiber types in correlation to different sporting events was very interesting and fun to learn and think about. Great video and breakdown of the neurons as well.
These explanations are so helpful, especially the muscle fiber types!
I liked how you went over the steps that occur at the NMJ and I also liked how you went over the chart of the different muscles fibers and how they differ.
I appreciated how you applied the information presented to athletes and their performance! It helped me see the information through a different perspective.
I really like the graphs and the tables you included, they are really helpful!
The stretch reflex is a vital loop which enables us to have faster contraction and reaction to stimuli. The feedback look comes from the spinal cord rather than the brain allowing for quicker reflex. Super cool to learn about this process which our bodies do automatically.
Cool video! I enjoyed relearning about action potentials, the synaptic cleft, and how motor units are defined.
The graph was very helpful when it came to understanding fast-twitch and slow-twitch! First time hearing of these terms and I feel like it will be an easy topic
I like how you not only talked about how the neuromuscular system works but also how to apply it to increase force and get stronger.
I liked how you showed us how this information can be applied to an athlete's workout program to improve their force production.
The explanation of the three muscle fiber types was so helpful!
I enjoyed learning about the stretch reflex and how it is much more reactive, allowing the body to react quickly and subconsciously to external stimuli placed on the muscles. I am excited for when we learn later how to use this strategically. Thank you!
l love learning the all-or-nothing principle! I remember hearing it but it was a great refresh. Thank you Dr. Goodin!
Rate Coding is a new one for me. I am excited to learn to understand it and figure out how it relates to neural recruitment
It was new for me too!
This video allowed me to recall my knowledge of the physiology of the body. Great info!
I really enjoyed the reminder of the different muscle fiber types, the chart included was very easy to understand the difference between each one. I also liked the connection we see with lifting and our nervous system, like the GTO, to prevent us from injuring ourselves from lifting.
I also found the review of different muscle fiber types to be super helpful!
I also thought the chart was helpful. It's a great way to compare the characteristics of each muscle fiber type very quickly and can also be a great tool to learn about the fiber types.
I really liked your explanation of the golgi tendon organ and how it is discharged when there is an extremely heavy load which makes the muscle relax instead of possibly tearing.
The chart detailing characteristics of the main muscle fiber types is super helpful for comparing them and identifying key differences.
This was a super helpful review of motor units and muscle fiber types!
I was a little concerned at first because I didn't remember 'rate coding' at the start but this video walked me through the concept so now I have a better understanding than I did previously.
This was pretty easy to understand thanks to your detailed explanations!! Thank you!
I remember hearing about the "all or nothing principle" and while you were explaining it I was wondering about how it relates to different strengths, etc. and then you answered it shortly after! Very interesting stuff. I also never heard of the GTO, and it was really cool to hear about its importance and protective properties while training!
The GTO has become one of my favorite muscular mechanisms. I think that it is such a cool reflex that can be trained to let us do more!
I like how we took the time to dive deeply into these last two topics, I feel like its going to help us learn better for the rest of seamster. Also I feel like a couple of us needed the refresher.
As someone with high school anatomy and KIN1001 as my only background, I found this information super interesting and helpful. I'm interested to learn more about slow and fast twitch fibers!
The explanation of fused and unfused tetanus really cleared some things up for me, thank you!
I liked hearing about the different proprioceptors within our muscles. This is something we've recently been going over in A&P 2.
The role of the GTO is fascinating. Rather than continuing to push through a movement, our body recognizes that there is a certain threshold in order to prevent muscle tears.
This video was great and very detailed! It helped me review again the muscle fiber types!
Woah. This had so much info that I had to watch it 3 times. Great review of stuff I learned in Exercise Phys!
I've taught it now almost a dozen times in various classes and it still amazes me!
This was a great reveiw from Anatomy, theres always so many little things I forget.
I liked how you showed how the body isn't totally homogenous in terms of motor neurons and how places like our eyes and face don't have that much since they are needed for precision while our legs have much more since they don't have to be that precise but also have to generate lots of force to be able to move us. Also I thought it is pretty cool how you explained how the GTO and muscle spindles all send and receive their signals from the spinal cord to make a reflex in order to protect the body. I also love how you relate this to real life athletes since it makes it much easier to picture and understand the differences between a fast twitch muscle and a slow twitch one.
What I liked about this video was being able to see the recruitment and rate coding chart given. I was able to visualize the faster the force output, the motor unit will move from #1 to #2 and so on.
I found it super interesting when you were talking about the frequency and rate that motor units are activated and how it directly related to the force produced in a muscle.
I really enjoyed learning about the all-or-none principle and how the muscle fibers work. Thanks for the video!
I enjoyed learning different techniques that athletes can use to improve force production because it is putting all the nitty gritty together and making it applicable!
I appreciated how you explained that the body isn’t uniform when it comes to motor neurons. For example, areas like our eyes and face have fewer motor neurons because they require precision, whereas our legs have more motor neurons. This is because the legs need to generate significant force for movement, even though precision is less critical.
Great info. I have a very detailed question I emailed you about. Thanks for doing these videos. They are fantastic.
Learning about the all-or-none principle was very interesting. All of the muscle fibers in the motor unit are able to contract and develop force at the same time.
Thank you for the great video! It was a great review of the muscle fiber types and the examples were very helpful!
I didn't know there was 3 different types of muscle fibers! I always thought there was just slow twitch and fast twitch. So fun to learn about!
It was very interesting and helpful to talk about the different types of muscle fibers and what they each do. This was a good review from my previous classes and helped to keep this information fresh in my mind!
I find differentiating between the muscle fibers to be interesting and incredible important when it comes to the varies types of athletes. Another point from this video that I found interesting is in regards to the neuromuscular system and how using heavier loads can optimize neural recruitment. I find this concept to be interesting and I appreciate all the information in this video!
I thought the difference between commonly known muscle tone and actual muscle tone regarding tension throughout the muscle was a very interesting distinction. Also really liked to hear about how athletes can work specifically to increase force production.
I've always found it interesting that muscles with great precision have fewer units per neuron, because it makes sense but I think it's neat that our muscles are structured differently depending on their purpose. I appreciate the distinction about action potentials and how it is the frequency that determines strength of a muscular contraction and not intensity of one AP.
Learning about the Golgi tendon organs were incredibly interesting. Especially since I remembered the bare minimum about them before this.
Thanks for these videos. I will be taking my CSCS exam in the next couple of days and it helps for me to listen to it when I drive to work.
Question: do you have your students look at the videos and comment for a grade? Lol
Hey Dr. Goodin! It was good to go over recruitment again. Also I enjoyed the video of what I assume is your son running at the end!
Just watch this video ! Thank you professor !
I think it's really cool how the muscle spindles' function is able to bypass the brain needing to signal our muscles to move in order to move quickly, and with precision when the stretch reflex is activated.
I really enjoy learning about the different types of muscle fibers. I think it's so interesting that different types of physical activity (such as long distance running compared to a sprint) require different types of muscle fibers.
I think that explaining how we can use the muscle spindle and GTO reflexes that are meant to prevent injury to our advantage is very valuable. As we train the muscles, we also train the reflexes to allow us to do more with our bodies.
Yes I totally agree with that, the importance of the GTO is something that I don't think about but is still extremely critical to our overall health.
The reflexes involved in sudden loaded stretches are very interesting, and it is awesome to think about how we can use the stretch-shortening-cycle to improve athleticism.
Thank you for explaining how the rhythm of twitches relates to athletic performance. For example, how Type 1 (slow twitch muscle fibers) are common among distance runners and how fast twitch is more common among sprinters and throwers. Great example of the differences especially since sports like track and field include all of these different events though the training for each is very different.
It is so cool to me that different athletes can have completely different types of muscles in their body based on the training they have done
The all-or-none principle was interesting to learn about. Even though our body might produce a stronger action potential it would not necessarily produce a stronger contraction which is very intriguing.
I thought the slide covering the muscle spindle in relation to the spinal cord was super interesting and helpful. It is interesting to think that all of these mechanisms are happening each time a muscle is contracted.
I enjoyed learning how we can use our knowledge of the physiology of the neuromuscular system to help improve athletes' force production.
It's crazy how based on what you do as an "athlete" and the way you train is what type of muscle fibers you predominately have. Shows how complex the body is and how adaptive muscles can be.
That’s a good point. I wonder how effective it is to change training regiments in order to change which muscle fibers are more dominant
The proprioceptors were so interesting and how there are fast neurons that only go to the spinal cord to give them quick commands. The GTO was the most interesting to me because its protecting the muscle from damage!
My favorite part of the video was when you talked about how athletes can apply this knowledge to their training. It kind of gives a better reason to understand something this specific when coaching seems to not usually look this deep into things.
I think the difference between stretch reflexes from the spinal cord and what we think of as "reflexes" (repeated trained actions that the body may perform subconsciously) is very interesting :)
I find it interesting to hear about the functional capacity of muscle fibers and how no two people have the same distribution of muscle types in their body.
I enjoyed the part where you talked about adding load to increase an increase of motor unit recruitment.
It is fascinating to see how some muscles that are so precise only have one muscle fiber per motor neuron where others that are less precise can use hundreds!
YOU ARE THE BEST! Love these videos. So helpful!