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5 Cards in this Set
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Structural imbalance |
Rooted in anatomy and biomechanics. Relays on visualization of structures on MRIs, Xrays, and surgery. Damage to physical structures such as ligaments and bones and are repaired through immobilization, surgery and rehabilitation. Foundation of medical practice and education |
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Functional imbalance |
An impairment in the ability of a structure or physiological system to perform it's job. This impairment often manifests in the body as reflexive changes. Not seen on imaging tests. Diagnosed by understanding the complex interaction of structures and systems. It's root is understanding the CAUSE of the pathology not the pathology itself. |
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Structural vs functional imbalance in chronic shoulder pain |
Structural: diagnosed by Xrays or MRIs. Looks for structural abnormalities like a hooked acromi on. TX: surgery Functional: normal Xrays findings although pain and weakness are typically observed. Weakness is often seen in the scapular stabilizers far from the point of pain. Tx: restoring muscle balance not only to the glenohumeral joint but the entire shoulder complex. |
Subacromial impingement |
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Pathogenesis of a structural and functional Condition |
1) Unbalanced biomechanical joint stresses that result in muscle imbalance may lead to joint damage 2) setting up a vicious cycle of pain and inflammation 3) Structural inflammation then can affect the neuromuscular system of the joint creating further dysfunction. 4) Eventually the body adapts to the motor programming for movement to compensate for the dysfunction. |
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Muscle imbalance: biomechanical paradigm |
Traditional viewpoint. The cause of muscle imbalance is due to the constant stress that muscles experience due to the prolonged postures and repetitive movement. This can lead to adaptations in • muscle length • strength • stiffness Which leads to movement impairments Muscles grow or shorten as the number of Sacomeres in a series increase or decrease. The precision of joint motion changes when a particular synergistic becomes dominant at the expensive of other synergists and antagonists and eventually affect movement patterns. For example hamstring muscle is dominant and the glut muscle is weak. The result repeated hamstring strain and a variety of painful hip joint dysfunctions. |
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