Opinion, and published data, point towards exercise as the cause of high CK
in Dr. Kay's patient. Presumably, exertion causes some damage to muscle
tissue, resulting in leakage of CK into the circulation.
It occurred to me that you might have a little fun by suggesting to Mr.
Atlas that his lab results indicate his exercise regimen might be destroying
more muscle than it is building.
Roger Bertholf
UF Health Science Center/Jacksonville
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