1. PF Contest - Win "Conquering the Physics GRE" book! Click Here to Enter
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

B Weight gain vs. Vertical Jump

  1. Apr 13, 2016 #1
    I've been bothered about this for a while now. As a volleyball player, I am constantly looking for ways to increase my vertical. So, my question is:

    Will an increase in muscle mass decrease my vertical? On one hand, I am getting stronger and therefore should be able to push harder off the ground. On the other hand, obviously, it makes sense that one would not be able to jump as high with greater mass.

    Furthermore, does it matter where on my body I am putting the muscle? I would like to work on my upper body, but if the increased muscle mass lowers my vertical, then I'm not sure that that is best for me.

    I've posted this question in a few different places to see what different answers I get from physicists and body-builders. I imagine the responses here would be a tad more eloquent and professional.

    Any response would be greatly appreciated. Thank you in advance
  2. jcsd
  3. Apr 13, 2016 #2


    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    The right sort of muscle in the jumping muscles - mostly the quads - should increase your jump. The right sort for the occasional jump is fast-twitch rather than slow-twitch, but I don't know to what extent one can control the development of one vs the other. The extra mass of jumping muscles should be far more than offset by the extra explosive power.
    In contrast, most other muscle will be a hindrance, as it's just dead weight.
    There will be an optimal amount though. Muscle bulk is not the same as muscle strength, and speed of movement is important as well. Being able to squat 200KG slowly is not the same thing as lifting one's own 70kg body in an explosive movement. Bulging body-builder muscles would probably be counter-productive, even in the quads.
    Why not have a close look at the legs of top-level volleyball players?
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted

Similar Threads - Weight gain Vertical Date
I Can a bicycle be tipped over by only applying rear brake? Jan 16, 2018
I Calibration of weight sets Dec 18, 2017
B Force (in lbs) to speed? Nov 6, 2017
Does an object gain weight? Nov 2, 2010