Delivers - their name liveth for evermore

One creative study, using  a 200 mg caffeine pill, found that caffeine by itself was a potent pain reliever for muscle pain.  Conducted by Daniel E. Myers, ., associate professor in the department of oral medicine and pathology at the University of Pittsburgh School of Dental Medicine, this experiment measured the effects of caffeine on “ischemic muscle contraction pain,” that is, the intense pain (such as that experienced during a heart attack) caused by blocking the flow of blood to an area of the body.  Each participant in the study was given either a 200mg caffeine pill or a placebo.  One hour later, subjects raised their arms to drain the blood and blood pressure cuffs were attached to prevent blood flow back into the arm.  The participants then did wrist curls while holding a small weight, activity which would give rise to ischemic muscle pain.  The subjects were then asked to rate pain levels after 15, 30, and 45 seconds of wrist curl exercises.  At 15 seconds, the mean pain rating of those who had taken caffeine was half that of those who had taken a placebo!  A similar profile but less pronounced pattern of effects was found at 30 seconds and 45 seconds.  Myers attributes the pain killing power of caffeine in his study and in over-the-counter and prescription medications to its action in blocking adenosine receptors in muscles, concluding that caffeine alone delivers considerable analgesic efficiency and that the “implication is that there is a rationale for the use of caffeine in the treatment of muscle pain when blood flow is reduced.” [iii]

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