Contraction generated force

  1. New Member
    Rarchib's Avatar
    Stats
    5'11"  200 lbs.
    Join Date
    Dec 2012
    Posts
    341
    Rep Power
    26891
    Level
    16
    Lv. Percent
    97.19%

    Contraction generated force


    This might be a little obscure to post on here but I am curious about the physics side of weight training. My question is about the force generated by what I'm assuming is the mass of the muscles under contraction and the acceleration of these contractions. For example, when bench pressing 225lbs, the force acting downwards is roughly 1000N (ma), so in order to move the weight in the vertical direction (assuming ideal conditions.. No air resistance and a 90 degree movement) would the force pushing on the barbell upwards be the mass of the contracting muscles and the acceleration of the contraction? Obviously the force would need to be over 1000N for the barbell to move upward but I'm just curious as to how this force is generated. Hopefully someone with a physics background can help out. Thanks.

  2. Senior Member
    OnionKnight's Avatar
    Stats
    5'10"  208 lbs.
    Join Date
    Jan 2013
    Posts
    2,390
    Rep Power
    466001
    Level
    44
    Lv. Percent
    18.49%
    Achievements Activity ProPosting Pro

    this might help you a little bit

    http://muscle.ucsd.edu/musintro/contractions.shtml
  3. New Member
    Rarchib's Avatar
    Stats
    5'11"  200 lbs.
    Join Date
    Dec 2012
    Posts
    341
    Rep Power
    26891
    Level
    16
    Lv. Percent
    97.19%

    Quote Originally Posted by OnionKnight View Post
    Thanks
    •   
       

  4. Senior Member
    ZiR RED's Avatar
    Stats
    6'1"  215 lbs.
    Join Date
    Aug 2010
    Posts
    2,529
    Rep Power
    297851
    Level
    43
    Lv. Percent
    77.74%
    Achievements Activity ProPosting Pro

    Here is the biomechanics section from the strength and conditioning course I taught at UK. I think it gives quite a bit more information, examples, and applications than the previous website (not that that site isn't a good reference).

    http://www.slideshare.net/JayCholewa...ength-training
  5. New Member
    Rarchib's Avatar
    Stats
    5'11"  200 lbs.
    Join Date
    Dec 2012
    Posts
    341
    Rep Power
    26891
    Level
    16
    Lv. Percent
    97.19%

    Quote Originally Posted by ZiR RED View Post
    Here is the biomechanics section from the strength and conditioning course I taught at UK. I think it gives quite a bit more information, examples, and applications than the previous website (not that that site isn't a good reference).

    http://www.slideshare.net/JayCholewa...ength-training
    Thanks it looks like a good read. Ill definitely spend some time to check it out
  6. Senior Member
    ZiR RED's Avatar
    Stats
    6'1"  215 lbs.
    Join Date
    Aug 2010
    Posts
    2,529
    Rep Power
    297851
    Level
    43
    Lv. Percent
    77.74%
    Achievements Activity ProPosting Pro

    Quote Originally Posted by Rarchib View Post
    Thanks it looks like a good read. Ill definitely spend some time to check it out
    Sure, and if you have any questions feel free to let me know. There were about 5 classes of lecturing accompanying the slides.
  

  
 

Similar Forum Threads

  1. The lbs of force generated by a pair of doubled mini-bands?
    By Jstrong20 in forum Powerlifting/Strongman
    Replies: 3
    Last Post: 11-22-2005, 11:26 PM
  2. army special forces..??? anyone been there?
    By LakeMountD in forum General Chat
    Replies: 24
    Last Post: 11-22-2003, 02:11 AM
  3. Armed forces shark attack.
    By db682 in forum General Chat
    Replies: 5
    Last Post: 08-07-2003, 09:15 PM
  4. Forcing 1-test out of solution.
    By canadaguy in forum Anabolics
    Replies: 3
    Last Post: 07-18-2003, 02:59 PM
  5. Replies: 16
    Last Post: 03-20-2003, 12:31 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Log in
Log in