
Becky Montanya
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Dec 16, 2005, 10:15 PM
Post #3 of 4
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Jim - Here is a good explaination I found on one website: "Shivers is a devastating disorder in draft and warmblood horses whereby horses develop muscle tremors and hyperflexion – flexion beyond normal limits – of the rear limbs during shoeing, after standing still or when backing up. Many affected horses also show concurrent tail tremors. In some horses, Shivers never progresses, while in others it leads to weakness, muscle atrophy and an inability to get up that may require euthanasia. The investigators are examining whether Shivers is caused by another painful muscle disorder, equine polysaccharide storage myopathy (EPSM), or whether EPSM and Shivers are common but separate disorders that can coexist in the same horse."
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