RAPID ECCENTRIC ISOMETRICS
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Rapid Eccentric Isometrics (REIs) are an advanced proprietary training technique developed by Dr. Joel Seedman, which he uses to increase proprioceptive feedback from muscle spindles with the goal of improving performance and muscle function. REI’s also improve force development and stabilization as the muscles are forced to turn on rapidly to absorb high impact forces. REI's should only be used once proper form has been established with standard eccentric isometrics (EI’s).

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