How do you calculate the weight in a pushup?

Discussion in 'Fitness & Nutrition' started by Kortiz-DZ, May 16, 2006.

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  1. Kortiz-DZ

    Kortiz-DZ Resident Nigerian Lipper OT Supporter

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    Do any of you jokers know what equation it takes to find out how much weight is involved in a pushup?
     
  2. knucks

    knucks Active Member

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    you're a joker
     
  3. Elfling

    Elfling New Member

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    I don't know if there is an equation..for some reason I'm thinking 65% of bodyweight? But that might be wrong :o

    I don't think it matters in the end.
     
  4. Kortiz-DZ

    Kortiz-DZ Resident Nigerian Lipper OT Supporter

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    NO YOU ARE!!!
     
  5. Elfling

    Elfling New Member

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    Also- it depends on how your mass is distributed, and at what point in the exercise you're measuring it- levers and shit, all that mathy stuff that I dropped out of med school because of.
     
  6. Limp_Brisket

    Limp_Brisket New Member

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    first of all, it would be a dynamic number due to the fact that the weight would change depending on the angle between the floor and your body. it would be heaviest at the bottom, and lightest at the top.

    i guess you could figure it out at the top and then at the bottom and take the average if you want a number.

    edit: ^^^ and what this guy said, distribution of wieght. at the bottom you think it'd be about half your weight since your legs are lifting half, and your arms are doing half. but then again your upperbody is alot heavier than you lower body, so it would be more on your arms!
     
  7. Kortiz-DZ

    Kortiz-DZ Resident Nigerian Lipper OT Supporter

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    2 years of physics...and I got nothing from it.
     
  8. ChaCha

    ChaCha Active Member

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    ummm well your body creates a force along is centroid, so for guys this would usually be around your waist. Your pivot point would be from your toes so your body creates a moment around your pivot point. In order to find the force applied you would have to find the distances from your shoulders to your toes and your waist to your toes.

    distance from waist * body weight < distance from shoulders * F

    reason its greater than is because you move upward, so solve the equation as if its an =
     
    Last edited: May 17, 2006
  9. Hood Moses

    Hood Moses I part the Black Seas...

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    To many variables to determine, just start benching.
     
  10. Chris3G

    Chris3G Bullshark Testosterone

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    who cares?
     
  11. knucks

    knucks Active Member

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    exactly where i was going with my reply..
     
  12. devree

    devree OT Supporter

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    people that do a lot of pushups?
     
  13. Illini08

    Illini08 New Member

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    instead of putting your feet on the ground, put your feet underneath a scale and have a friend watch it for you. like rq60 said it will be a different number at the top and bottom, but you can average it out. then take your body-weight minus the averaged number and there you go
     
  14. Fishbait

    Fishbait New Member

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    :hsugh:
     
  15. CyberBullets

    CyberBullets I reach to the sky, and call out your name. If I c

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    a quick google search was able to locate this formula.

    [​IMG]
     
  16. kronik85

    kronik85 New Member

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    that function has nothign to do with calculating forces on levers.
     
  17. iruski

    iruski New Member

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    why not measure ur total weight before pushups, then as you do the pushup put your feet on the scale, and get a friend to check it for you. Therfore the difference will be the weight u pushup.

    EDIT: didn't read Illini08's post.
     
    Last edited: May 17, 2006
  18. CyberBullets

    CyberBullets I reach to the sky, and call out your name. If I c

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    no shit. i just ran a google search for calculus functions :ugh:
     
  19. ChaCha

    ChaCha Active Member

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    that still won't be entirely accurate because the distances between your waist to your toes and your shoulders to your toes differ.
     
  20. kronik85

    kronik85 New Member

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    yeah no fuck, i was kind of hinting at what the fuck you should be looking for in case you really cared.
     
  21. MP18

    MP18 New Member

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    take a bathroom scale, get in the push up position, and put your hands on the scale.....jesus

    last time i did it the scale read 90lbs and i was about 165 at the time
     
  22. Fishbait

    Fishbait New Member

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    holy crap... do you really think this is a valid solution?

    :OP:
     
  23. y0gfx

    y0gfx BURAAAJYANAII!!!

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    Maybe you can do pushups w/ your hands on scales...I mean...for every action, there is an equal and opposite reaction. So for example, to push 45 lb of weight you have to exert a greater amount of force to move it. So you can calculate how much weight you're pushing at any given time...?

    edit: That was rambling. Just do the thug workout guys...they don't care how much force they exert on their pushups. They just do it :p
     
  24. siniquezu

    siniquezu New Member

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    :noes: oscillating weights
     
  25. knucks

    knucks Active Member

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    or you can just not calculate how much weight you push in a pushup
     
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