Factors Affecting Muscle Strength and Power | CSCS Chapter 2

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  • เผยแพร่เมื่อ 25 ธ.ค. 2024

ความคิดเห็น • 101

  • @oliviadyck510
    @oliviadyck510 4 ปีที่แล้ว +8

    So amazing how we were created so specifically- the fact that muscles have different pennation of fibers to be able to perform different functions is so crazy! Such a small detail but makes a huge difference.

    • @DrJacobGoodin
      @DrJacobGoodin  4 ปีที่แล้ว +4

      I know! Awesome that each muscle has it's own specific function, and yet there is still so much variability between individuals

  • @laurenwahl9715
    @laurenwahl9715 3 หลายเดือนก่อน

    I think the factors that are so intricately contributing to strength and power is incredibly detailed and often hard to understand, but you explained these in a suscint and understandable way.

  • @luciavaldez2601
    @luciavaldez2601 11 หลายเดือนก่อน

    The image of muscle arrangement really brought everything to light! I liked how there was not only images of how the muscle arrangement looks on its own, but also with examples of where that type of muscle arrangement can be found in the body.

  • @IvyBartlett
    @IvyBartlett 3 หลายเดือนก่อน

    It is indeed incredible how the structure of muscle fibers, like their pennation angles, contributes so precisely to their functions. These small anatomical details really do make a big difference in how efficiently muscles work. It’s a great example of how complex and finely-tuned our bodies are!

  • @Moniiiqueee824
    @Moniiiqueee824 3 หลายเดือนก่อน

    I have never heard of the word pennation before this chapter. While reading Chapter 2, I wasn't as confident in knowing exactly what it was. Now seeing this video, I feel confident in knowing exactly what it is.

  • @jadenrea1109
    @jadenrea1109 11 หลายเดือนก่อน

    I think the different types of muscle arrangements are so interesting as they all serve such a specific role. The figure showing the different types of muscle arrangement and how each of them is associated with different parts of the body was great and very cool.

  • @ClaireStone-jq4wg
    @ClaireStone-jq4wg 3 หลายเดือนก่อน

    It's incredible to see how much goes into a specific muscle's strength and an athlete's overall strength. I feel like most people don't think about the neural control that goes into a muscle contraction, such as recruitment and rate coding.

  • @mollytucker567
    @mollytucker567 3 หลายเดือนก่อน

    I liked how the video highlighted the importance of acknowledging the different factors that affect muscle strength and power. It really does put into perspective the detail that goes into the human body...that and I also never truly thought about how physical body size affects muscle strength and power, I find that very interesting!

  • @torilucht5871
    @torilucht5871 ปีที่แล้ว

    The strength-to-mass ratio was a new concept to me but it makes so much sense! Often people think the bigger the person would be the strongest but in the case of body size the smaller athletes tend to have a better strength-to-mass ratio. This is an interesting concept!

  • @NoelleDarquea
    @NoelleDarquea 3 หลายเดือนก่อน

    I had no idea body size played such a major role in strength and power. Great video!

  • @madelinehernandez8838
    @madelinehernandez8838 ปีที่แล้ว

    Relearning muscle length while at rest, stretched, and contracted was a good reminder. These muscles are going to generate the greatest force at resting length.

  • @everoche3754
    @everoche3754 ปีที่แล้ว

    This video is a combination of so many different classes I have taken throughout the years here! It is cool to see them all in one video and how intertwined each topic is with another.

  • @matthewbeecher2592
    @matthewbeecher2592 3 หลายเดือนก่อน

    I enjoyed learning about Pennate muscles. I had a hard time in previous classes with understanding how the muscle fibers align obliquely, but you made it much easier to understand.

  • @julianasum8481
    @julianasum8481 11 หลายเดือนก่อน

    This video gave me better insight on how neural control and muscle cross sectional area can affect strength and power. Additionally, I enjoyed learning about the applications of strength and power on different types of athletes.

  • @AylethLizarraga
    @AylethLizarraga 11 หลายเดือนก่อน

    Learning about the body has always been an amazing thing for me! The number of different muscles like radiate, bipennate and inupennate makes an of how incredible the human body is !!

  • @sarahcox-barden
    @sarahcox-barden 3 หลายเดือนก่อน

    Another really helpful summary of chapter 2! I think its really interesting to learn and kind of visualize how the muscle fibers have a particular look for a reason. Always reminds me of how intentional of a creator God truly is!

  • @moirabryson5042
    @moirabryson5042 11 หลายเดือนก่อน

    I didn't realize how important the strength to mass ratio was important when it came to sports events, but it does make sense that there must be a peak point to when it's the best and after that the the ratio would decrease due to the mass of the individual. Thank you!

  • @maryerickson4093
    @maryerickson4093 3 หลายเดือนก่อน

    Since I am taking physics at the same time as this class, it is cool to be able to tie the material in both of these classes together!

  • @kelli-lynroche8446
    @kelli-lynroche8446 11 หลายเดือนก่อน

    It is so interesting to learn about all of the components that go into strength. How our bodies were created truly amazes me.

  • @miadenava585
    @miadenava585 3 หลายเดือนก่อน

    This video was very informative about the various factors that influence the ability to generate power and strength in the muscles. Thanks for this video, Dr. Goodin!!

  • @DerekLinck
    @DerekLinck ปีที่แล้ว

    I liked the segment on muscle pennation and its uses. Also the breakdown of the strength to mass ratio and the example of the powerlifter vs the sprinter was interesting.

  • @thomaskinzler
    @thomaskinzler 3 หลายเดือนก่อน

    I appreciated the distinction between recruitment and rate coding because I've understood in the past that force output differs by motor units and the rate but I don't know if I've separated the two clearly like this in my mind. I had also never had different muscle arrangements explained to me in a way that highlighted why certain orientations create different amounts of force or are more specific to speed or strength. I loved hearing about how back squatting more than your bodyweight versus your bodyweight leads to easier force generation on a jump because the athlete only has to produce 30% of their maximal force. This feels very applicable to an athlete like Saquon Barkley, who squats an absurd amount and is able to generate so much force easily.

  • @jakegellatlyperformance
    @jakegellatlyperformance ปีที่แล้ว

    I really enjoyed learning about the different types of muscle pennation! It was really interesting to hear how the different ways muscle fibers run effect the potential force output of the muscle.

  • @kylesands9693
    @kylesands9693 ปีที่แล้ว

    It was really cool to learn about all the different muscle fiber arrangements! I had no idea, such a cool little detail.

  • @emilywalker9462
    @emilywalker9462 11 หลายเดือนก่อน

    Reviewing the angle of pennation was super helpful! I always seem to forget this and this was a fantastic refresher!

  • @jupshaw
    @jupshaw 11 หลายเดือนก่อน

    This video allowed me to clearly understand the ways a muscle produces force through its motor units. Thank you!

  • @audreyoates3242
    @audreyoates3242 ปีที่แล้ว

    It was interesting learning about the arrangement of muscle fibers. I've never learned in-depth about fibers before, great video!

  • @joshcombs123
    @joshcombs123 ปีที่แล้ว

    The force output example was very interesting and helpful. A good strength base carries over into other movements, not just heavy, weight bearing activities.

  • @dimitricarrion6145
    @dimitricarrion6145 ปีที่แล้ว

    I liked how you explained why our muscle fibers run in the pennate formation rather than just running down a straight line.

  • @celinegriffin3244
    @celinegriffin3244 ปีที่แล้ว

    I like how you pointed out that smaller athletes have a higher strength ratio than larger athlete, with the example of the back squat where the smaller athlete doesn't have to produce more of a load because they are closer to the ground compared to someone who is taller and need to travel down further

  • @macynunez4455
    @macynunez4455 11 หลายเดือนก่อน

    I have learned about pennation before but I never thought about how the muscle fibers don't necessarily directly align with the muscle's line of pull and because of that, it is able to exert a greater force of contraction! Such an interesting concept along with the strength-to-mass ratio!

  • @jamarmack9626
    @jamarmack9626 2 ปีที่แล้ว

    It was really interesting to learn about the strength to mass ration because before learning this, I had never even thought about the weight someone is lifting relative to their own body mass.

  • @abartsch0022
    @abartsch0022 3 หลายเดือนก่อน

    That is so cool how there are so many things that affect our strength and some of these are beyond our control. Like height and how the shorter ones tend to be stronger than the taller athletes. Also that is cool how the angle of pennation can lead to higher force production.

  • @alannabergherm8046
    @alannabergherm8046 2 ปีที่แล้ว

    I found the sections about body size and the strength to mass ratio very interesting! I never even thought about how there could be such a thing as "too much muscle"!

  • @tianguyen3897
    @tianguyen3897 2 ปีที่แล้ว

    I found it super interesting to learn about body size in the "strength to mass ratio" section! I would never have thought that given constant body proportions, a smaller athlete would have a higher strength-to-mass ratio than a larger athlete.

  • @NatalieSeaholm
    @NatalieSeaholm 3 หลายเดือนก่อน

    this video was a really good introduction to the muscle strength and power for me because its not something i have ever read into. I thought it was really informative to learn about what happens to the length of muscles when they are resting, contracted, and when they are stretched.

  • @rozalynnlarson8835
    @rozalynnlarson8835 2 ปีที่แล้ว +2

    I liked learning about the strength-to-mass ratio. I think it's really interesting that smaller athletes typically have a higher ratio than larger athletes.

  • @ellieconiaris9073
    @ellieconiaris9073 3 หลายเดือนก่อน

    super interesting videos as much as I learn about the muscles in my classes I always learn something new! The body is so intricate it is so fascinating to learn about

  • @saeternj
    @saeternj ปีที่แล้ว

    It makes sense why smaller weightlifters are so much more explosive than larger weightlifters. Thanks Dr. Goodin!

  • @DevanneyBoyd
    @DevanneyBoyd 11 หลายเดือนก่อน

    It is fascinating how many factors impact muscle strength and power; one of the most interesting is the strength-to-mass ratio.

  • @caleighgarcia7792
    @caleighgarcia7792 2 ปีที่แล้ว

    I think that the strength-to-mass ratio is very interesting. It now makes sense to me why some people who are super tall cannot lift as much because the weight has to move much further. This put that into perspective for me, thank you!

  • @ChynnaKifer
    @ChynnaKifer ปีที่แล้ว

    It is crazy how strength to mass ratio plays a part in different sports! Thank you for the video!

  • @ryanharris8481
    @ryanharris8481 11 หลายเดือนก่อน

    I enjoyed learning about the strength-to-mass ratio. It made me think of how the UFC always has their "pound for pound" best fighter labeled, and usually it is a smaller fighter.

  • @wyattsimms4472
    @wyattsimms4472 2 ปีที่แล้ว

    I enjoyed learning about how the factors that effect performance in resistance training. I am excited that we are starting to get deeper into the resistance training programming side of things!

  • @joyshang5670
    @joyshang5670 ปีที่แล้ว

    Wow! I never knew that people in the lower weight class have a higher strength to mass ratio. It was really interesting to learn and how their body structure helps them operate/perform.

  • @wyattcarlson7504
    @wyattcarlson7504 11 หลายเดือนก่อน

    The strength to mass ratio is always a super interesting topic. For example some athletes might have a smaller mass, but an overall higher strength to mass ratio.

  • @BrianaReynoso
    @BrianaReynoso 11 หลายเดือนก่อน

    I found this to be very interesting! Strength to mass ratio was cool to learn because usually we would think the taller athlete would have a higher ratio.

  • @Fitness_coreyt
    @Fitness_coreyt ปีที่แล้ว

    Thank You so much Sir, I haven't applied for CSCS Course yet as I was checking My ability if I can do This or not but by providing and explaining such great Course for free is already motivational for Me.

  • @clairemasterson6031
    @clairemasterson6031 2 ปีที่แล้ว

    The explanation of strength to mass ratio was very interesting to me and something I've never really thought about before. Like while watching the olympics last summer but perhaps in that example they make it look so easy, even though I know better.

  • @madelinejewelnebril2871
    @madelinejewelnebril2871 ปีที่แล้ว

    It was interesting to learn about the different muscle fiber arrangements and how they each allow for different contractile characteristics.

  • @aliciahernandez00233
    @aliciahernandez00233 3 หลายเดือนก่อน

    It is interesting how rate coding affects maximal output depending on the motor units. I found the angle of pennation really cool how due to the placement of the muscle fibers our muscles can create greater contractility among the crosse sectional areas.

  • @davidhaynes3269
    @davidhaynes3269 3 ปีที่แล้ว +1

    I think it's super cool that the size of the athlete can affect strength and how the physics of the activity.

  • @emilydonahue8216
    @emilydonahue8216 3 ปีที่แล้ว

    This was super interesting! There's so many factors that go into analyzing athlete's strength. The strength:mass ratio is so interesting, and makes so much sense!

  • @evakoutelieris1633
    @evakoutelieris1633 ปีที่แล้ว

    I found the arrangment of the muscle fibers very interesting!

  • @thelmasepulveda4481
    @thelmasepulveda4481 ปีที่แล้ว

    It was interesting to know the different arrangement of muscle fibers for each muscle. I also found it cool how smaller athletes perform at a higher strength to mass ratio because I am a small athlete!

  • @hannahb872
    @hannahb872 ปีที่แล้ว

    The "strength to mass ratio" is one of the factors I found pretty interesting to know how it affects acceleration. Its fascinating to know how much it impacts the muscular power and strength in an athlete performance.

  • @MatthewDuPrey325
    @MatthewDuPrey325 11 หลายเดือนก่อน

    I find the strength-to mass section to be very interesting because I know from high school that it isn't always the bigger guys who are able to be the strongest or able to jump the highest but the smaller guys can sometimes be just as strong if not stronger.

  • @aribhalla9820
    @aribhalla9820 3 ปีที่แล้ว +1

    It was interesting to learn about how joint angles are related to muscle action/power.

  • @lucamarin8565
    @lucamarin8565 11 หลายเดือนก่อน

    I found the strength to mass section very interesting. I feel that we commonly assume that the more mass an athlete is the less likely they are to jump high yet in many scenarios the opposite can occur.

  • @bojak76
    @bojak76 4 ปีที่แล้ว +1

    The concept that smaller weightlifters can lift more (percentage in relation to body weight) versus a larger weightlifter is not a new concept to me, however the reasons why were unknown. I basically just assumed it was because of gravity. The explanation of strength-to-mass ratio clears everything up for me now. Finally!

  • @emmasanchez5975
    @emmasanchez5975 3 ปีที่แล้ว +1

    It's interesting how smaller weightlifters can lift more! I never knew that because I thought it would be harder on their bodies instead. I love the demonstration with the pencil it helped tie things together.

  • @makennakaczmarczyk7563
    @makennakaczmarczyk7563 ปีที่แล้ว

    I think it's interesting to learn how biomechanical factors are affected in human strength by the muscle length. Muscles can generate the greatest force at a resting length because of the number of potential crossbridges.

  • @coreycollier973
    @coreycollier973 3 ปีที่แล้ว

    It is interesting to learn how there is not a set guideline for a certain athlete's strength to mass ratio and that it can only really be found through trial and error.

  • @asswhole4195
    @asswhole4195 3 ปีที่แล้ว

    Thank you for sharing all of this great information with us sir

  • @kennyvogan5673
    @kennyvogan5673 ปีที่แล้ว

    There is a lot more stuff to take into consideration for an athlete and their strength that is above how much they can accelerate or move weight as a baseline. The strength to mass ratio makes a lot of sense, even more so from a gymnasts perspective to see why gymnastics mainly works for those that are short. Tall athletes can do the same stuff, but shorter gymnasts just have a greater strength/mass ratio.

  • @TRamos-pl6oo
    @TRamos-pl6oo ปีที่แล้ว

    i thought the strength to mass was very beneficial to learn about. It also makes a lot more sense how when strength is higher and mass is lower, those people are able to reach the needed force much quicker

  • @VirAquinoPLNU
    @VirAquinoPLNU 3 หลายเดือนก่อน

    I think it makes sense that individuals with a smaller body size because to their biomechanics leverages. that's why you see so many shorter athletes who tend to perform olympic lifts smoothly compared to someone who is not

  • @matthewwadley4348
    @matthewwadley4348 ปีที่แล้ว

    The strength to mass ratio was pretty interesting as to how your own body mass increases more rapidly than muscle strength which in the long run makes a ton of sense.

  • @cameransherwood5157
    @cameransherwood5157 ปีที่แล้ว

    the strength to mass ratio is so unique to me. it makes sense why a smaller track athlete would tend to have a higher strength-to-mass ratio then a body builder though. I dont know why I always had the idea that "Weight moves weight" in my head so I would think that the heavier athlete would have the higher ratio which I now know is incorrect!

  • @jackmalone5800
    @jackmalone5800 2 ปีที่แล้ว

    The idea of indiscriminate hypertrophy was really interesting to me. Seems like it is all very goal specific using the example of a bodybuilder vs a sprinter with bodybuilders just wanting hypertrophy at all costs while a sprinter is only concerned with running faster and hypertrophy is a byproduct of that training.

  • @mattiapapa8248
    @mattiapapa8248 3 ปีที่แล้ว

    Man this video is enlightening

  • @Adam.gates_
    @Adam.gates_ ปีที่แล้ว

    Muscle pennation is an intriguing topic. Will we go over training muscles by biasing certain fibers according to their pennation? I see a lot of fitness gurus talking about that, but Dr. Mike has strong opinions against it.

  • @milandiklic1080
    @milandiklic1080 ปีที่แล้ว

    today i learned how muscle fibers are organized in a muscle group!

  • @egganbert
    @egganbert 5 หลายเดือนก่อน

    This information is fantastic and clears up the textbook info a bit more but also makes me a bit sad given I'm a boxer arou d 80kg vs the fast and explosive guys closer to 70 or 67kg 😢

  • @avajgallo
    @avajgallo 2 ปีที่แล้ว

    I always wondered why exactly those short sprinters were always so fast and why people thought I would be able to run fast with my "long legs" haha. Makes a lot of sense now.

  • @jakegonzales1367
    @jakegonzales1367 ปีที่แล้ว

    I found your explanation on how a person can gain muscle mass but not strength to be really interesting.

  • @cutetwinkie47
    @cutetwinkie47 3 ปีที่แล้ว

    Although there are a lot of cons being 5ft tall, it is cool to know that I have plenty of mechanical advantages that allow me to increase muscle strength!

  • @jeanneatfeisfit982
    @jeanneatfeisfit982 ปีที่แล้ว

    This is super helpful thank you!!

  • @michaelrogowski62
    @michaelrogowski62 3 ปีที่แล้ว +2

    It makes sense that you said that the smaller the athlete, in general, are stronger when it comes to strength to mass ratio. I thought of Naim Süleymanoğlu able to lift 3 times his body weight at 4ft 10in compared to Lasha Talakhadze at 6ft 6in not even able to lift twice his bodyweight.

    • @DrJacobGoodin
      @DrJacobGoodin  3 ปีที่แล้ว

      That's a perfect example Michael.

  • @evaozimec
    @evaozimec ปีที่แล้ว

    Interesting to learn that shorter/smaller athletes have a higher strength to mass ratio because they don't have to produce as much work when lifting a load because it's traveling a shorter distance!

  • @ControlDialedin
    @ControlDialedin หลายเดือนก่อน

    Do you have any more material on strength to mass ratio or is there a section in the book you can point me to?
    Having a weight class constraints what I can do and I do not want to add any mass that isn’t functional. However, if I want to work explosive movements, I know some amount of strength is necessary to prevent injury.
    Thanks for your lectures. They really help.

  • @brysonhashimoto2878
    @brysonhashimoto2878 ปีที่แล้ว

    It is very interesting that sprinters have a better strength to weight ratio than a body builder which makes a lot of sense due to the amount of power a sprinter must produce with less body weight than a body builder.

  • @charmenatchison854
    @charmenatchison854 11 หลายเดือนก่อน

    Struggling with pennation and the velocities. It seems getting a solid understanding might involve my doing the calculations again and again. Some time require exercise, lol.

  • @shiva-un1sm
    @shiva-un1sm 3 ปีที่แล้ว

    thank you so much

  • @iyappans5259
    @iyappans5259 3 ปีที่แล้ว +1

    Hi sir, Strength to mass ratio little confusion sir, I understand Strength/Mass = Force/Mass = Acceleration, when Force increases acceleration will increase, mass increases acceleration will decrease. Your Example 70kg, 140kg I can’t understand please explain sir

  • @lexireynish5892
    @lexireynish5892 11 หลายเดือนก่อน

    I always assumed the taller/bigger athletes would have more power, but it makes sense why the smaller athletes would have a greater strength to mass ratio.

  • @braedenmoore3743
    @braedenmoore3743 2 ปีที่แล้ว

    I found it very interesting that a smaller athlete has a higher strength-to-mass ratio compared to a larger athlete.

  • @isabellecousineau302
    @isabellecousineau302 ปีที่แล้ว

    I thought it was interesting how a sprinter would most likely have the higher strength-to-mass ratio as compared to a bodybuilder, showing that the sprinter has more acceleration.

  • @1983houssem
    @1983houssem 3 ปีที่แล้ว

    Hi Dr Jacob
    i have specific question related to chapter 2 ( application of resistance training ) / the greatest muscle torque means the greatest muscle force , or not true ?
    During the biceps curl exercise , the biceps apply the greatest muscle torque at the position of 90 degree to control the weight, which means it plays the greatest muscle force , there's a confusion on the norms , thank you for reply and explanation .

  • @karatemplin
    @karatemplin 3 หลายเดือนก่อน

    With the athletes that can be "too big" does this also apply to sports such as football?

  • @cjbuenviaje
    @cjbuenviaje ปีที่แล้ว

    It is fascinating how smaller athletes can lift more due to their body weight. How can you make it so that taller people can lift as much weight or are they just naturally not able to lift as much muscle unless they train more?

  • @ameliabrock
    @ameliabrock 11 หลายเดือนก่อน

    I wonder about the strength to mass ratio of professional ballerinas and bodybuilders. I really wish I could see how they compared considering the strength dance takes and the (unhealthy) emphasis on being as light as possible.

  • @wyntonbrown9439
    @wyntonbrown9439 11 หลายเดือนก่อน

    In regard to strength to mass ratio, is it possible to not have a lot of mass but still have a lot of strength.

  • @Chasebowen23
    @Chasebowen23 3 หลายเดือนก่อน

    Being able to back squat double your weight would be sweet

  • @rainingpants7046
    @rainingpants7046 3 ปีที่แล้ว

    I'm not sure if you still actively review these comments, but do you think these videos will greatly help with studying for the CSCS exam? Thanks in advance!

    • @DrJacobGoodin
      @DrJacobGoodin  3 ปีที่แล้ว

      Yes, absolutely. At least that's the feedback I've received :)

  • @willhopkins4197
    @willhopkins4197 ปีที่แล้ว

    I guess there are some perks to being short... I don't have to try as hard when I squat!

  • @drbonesshow1
    @drbonesshow1 ปีที่แล้ว

    Power = Work/time = Force x d/t = F x v.

  • @chrismangram8463
    @chrismangram8463 ปีที่แล้ว

    It's interesting how smaller weightlifters can lift more!