Notices
Results 1 to 2 of 2

Thread: Biomechanics/biophysics of Flexibility

  1. #1 Biomechanics/biophysics of Flexibility 
    New Member
    Join Date
    Jul 2005
    Posts
    3
    What is the physics, or else, biomechanics of the flexibility of the body and the joints that determine the flexibility? Does it have to do with the simple machine known as levers, or torque, moment of inertia, strain or stress; what? I know muscles have to do with it, but I am looking for physics terms. Plus I looked all around the internet and I could not find an answer. Could someone help me please?


    Reply With Quote  
     

  2.  
     

  3. #2 Re: Biomechanics/biophysics of Flexibility 
    Forum Junior superluminal's Avatar
    Join Date
    Jul 2005
    Location
    nowhere
    Posts
    259
    Quote Originally Posted by gyeser12
    What is the physics, or else, biomechanics of the flexibility of the body and the joints that determine the flexibility? Does it have to do with the simple machine known as levers, or torque, moment of inertia, strain or stress; what? I know muscles have to do with it, but I am looking for physics terms. Plus I looked all around the internet and I could not find an answer. Could someone help me please?
    It's everything you mentioned! You already have the right terms.

    Your forearm/elbow combination is a simple lever and the ulna and radius make a nifty rotating mechanism. The muscles contract to draw in or extend the forearm. The amount of stress/strain that your arm can take is determined by the honeycomb-like structure of the bone, the strength of the muscle/tendon attachments and the muscle fiber strength.

    The torque generated when you rotate your forearm is developed in the same way and is constrained by the same things. All joints in the body work essentially the same way, by clever arrangements of bone, muscle and tendons.

    PS: All muscle can do is contract. So things that seem to "push" are just clever arrangements of contractile muscles.


    Huh?
    Reply With Quote  
     

Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •