Factors of joint stability


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    This article by the Orthopaedic Surgery and Sports Medicine at the University of Washington lists the factors of joint stability:

    A number of factors interact to confer stability, while permitting motion in active human joints. First among these is the shape of the component parts. In the hips, for example, weight bearing drives the femoral head into a relatively deep socket, the acetabulum. The articular members are configured and positioned so that normal loading enhances the closeness of their fit.

    Ligaments provide a second major stabilizing influence as they guide and align normal joints through their range of motion. An excellent example is the collateral and cruciate ligaments of the knee. These strong, relatively inelastic structures limit articular motion to flexion and extension.

    Within the axes of motion, however, more flexible constraints are required. This need is met by muscles and tendons. Muscular stabilization is perhaps most obvious in the shoulder, which is the quintessential polyaxial joint. The rotator cuff muscles approximate and stabilize the articular surfaces of the shoulder as larger muscles with better leverage provide the power for effective shoulder motion.

    If the desire to pop joints is based on Hypermobile Joints / Lax liagments some of these factors have been compromised.



  • nice article, thanks JC :)



  • Yep but i don't understand a lot of those words.



  • lol yeah you probably have to have loads of training to understand all that lot :)



  • Or be in that field so it isn't an amazing thread for a lot of people 8O



  • or own a dictionary
    I hear they even come on your computer now.
    WoW, difficult stuff



  • Lol MC - it is annoying to keep looking + sometimes even a definition is hard to understand like definitions of indirect object pronouns in french



  • lol google define



  • even longer.


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