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Jointcrackers :: View topic - Factors of joint stability
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Jointcrackers Forum Index » Joints in general » Factors of joint stability

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JointCracker
PostPosted: Sat Apr 29, 2006 11:48 pm    Post subject: Factors of joint stability Reply with quote

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This article by the Orthopaedic Surgery and Sports Medicine at the University of Washington lists the factors of joint stability:
Quote:
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.
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bod8
PostPosted: Thu Apr 24, 2008 10:27 pm    Post subject: Reply with quote

Supreme Jointcracker
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nice article, thanks JC Smile
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Blaze
PostPosted: Fri Apr 25, 2008 4:35 am    Post subject: Reply with quote

Supreme Jointcracker
Supreme Jointcracker

Joined: Jul 15, 2007
Posts: 1463
Location: Sweden

Yep but i don't understand a lot of those words.
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bod8
PostPosted: Fri Apr 25, 2008 4:37 am    Post subject: Reply with quote

Supreme Jointcracker
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lol yeah you probably have to have loads of training to understand all that lot Smile
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Blaze
PostPosted: Fri Apr 25, 2008 4:39 am    Post subject: Reply with quote

Supreme Jointcracker
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Or be in that field so it isn't an amazing thread for a lot of people Shocked
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MasterCracker
PostPosted: Fri Apr 25, 2008 7:17 am    Post subject: Reply with quote

Elite Jointcracker
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or own a dictionary
I hear they even come on your computer now.
WoW, difficult stuff
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Blaze
PostPosted: Fri Apr 25, 2008 7:18 am    Post subject: Reply with quote

Supreme Jointcracker
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Lol MC - it is annoying to keep looking + sometimes even a definition is hard to understand like definitions of indirect object pronouns in french
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bod8
PostPosted: Fri Apr 25, 2008 9:36 pm    Post subject: Reply with quote

Supreme Jointcracker
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lol google define
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Blaze
PostPosted: Sat Apr 26, 2008 3:07 am    Post subject: Reply with quote

Supreme Jointcracker
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Joined: Jul 15, 2007
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even longer.
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