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. 1983 Apr;24(4):308-11.

Scintigraphic evaluation of muscle damage following extreme exercise: concise communication

  • PMID: 6300359
Free article

Scintigraphic evaluation of muscle damage following extreme exercise: concise communication

P Matin et al. J Nucl Med. 1983 Apr.
Free article

Abstract

Total body Tc-99m pyrophosphate scintigraphy was performed on 11 "ultramarathon" runners to assess the ability of nuclear medicine techniques to evaluate skeletal-muscle injury due to exercise. We found increased muscle radionuclide concentration in 90% of the runners. The pattern of muscle uptake correlated with the regions of maximum pain. The detection of exercise-induced rhabdomyolysis appeared to be best when scintigraphy was performed within 48 hr after the race, and to be almost undetectable after about a week. It was possible to differentiate muscle injury from joint and osseous abnormalities such as bone infarct or stress fracture. Although 77% of the runners had elevated serum creatine kinase MB activity, cardiac scintigraphy showed no evidence of myocardial injury.

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