1. Incidence and clinical correlates of increased serum creatine kinase levels in persons with spinal cord injury.
- Author
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Szlachcic Y, Adkins RH, Waters RL, Govindarajan S, Wang J, Yee F, and Greenwood J
- Subjects
- Adult, Cohort Studies, Exercise Test, Exercise Tolerance physiology, Female, Humans, Male, Middle Aged, Muscle, Skeletal physiopathology, Oxygen Consumption physiology, Paraplegia etiology, Paraplegia physiopathology, Quadriplegia etiology, Quadriplegia physiopathology, Retrospective Studies, Spinal Cord Injuries complications, Spinal Cord Injuries physiopathology, Creatine Kinase blood, Paraplegia blood, Quadriplegia blood, Spinal Cord Injuries blood
- Abstract
Background: Elevated plasma levels of creatine kinase (CPK) are found in various neuromuscular conditions as a result of muscle damage and necrosis. Elevated CPK has also been described in elite wheelchair athletes and in able-bodied individuals after strenuous exercise., Methods: The incidence of elevated CPK in individuals with spinal cord injury (SCI) has not been well established. We reviewed laboratory data from 581 individuals with chronic SCI., Results: Most individuals with SCI (73.3%) had CPK values within 95% confidence intervals for able-bodied individuals. The highest levels were seen in African Americans (21% had CPK values > 95 confidence intervals for able-bodied individuals). Significant associations between CPK and the following independent variables were identified: impairment group, gender, duration of injury, body mass index, and ethnic group. Multiple regression analysis revealed significant correlations between CPK and oxygen consumption (beta .37, P < .01) in 32 individuals who performed the exercise test., Conclusions: These findings are important for clinicians evaluating symptoms of fatigue and myopathy in individuals with SCI.
- Published
- 2002
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