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Comparison Of 3 Methods To Assess Urine Specific Gravity In Collegiate Wrestlers, Kristin J. Stuempfle, Daniel G. Drury
Comparison Of 3 Methods To Assess Urine Specific Gravity In Collegiate Wrestlers, Kristin J. Stuempfle, Daniel G. Drury
Health Sciences Faculty Publications
Objective: To investigate the reliability and validity of refractometry, hydrometry, and reagent strips in assessing urine specific gravity in collegiate wrestlers.
Design and Setting: We assessed the reliability of refractometry, hydrometry, and reagent strips between 2 trials and among 4 testers. The validity of hydrometry and reagent strips was assessed by comparison with refractometry, the criterion measure for urine specific gravity.
Subjects: Twenty-one National Collegiate Athletic Association Division III collegiate wrestlers provided fresh urine samples.
Measurements: Four testers measured the specific gravity of each urine sample 6 times: twice by refractometry, twice by hydrometry, and twice by reagent strips.
Results: …