New Assessment of Forearm Strength: Reliability and Validity

• Autores: Christopher Kevin Wong, Neil Moskovitz
• Localización: American Journal of Occupational Therapy, ISSN 0272-9490, Vol. 64, Nº. 5, 2010, págs. 809-813
• Idioma: inglés
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• Resumen

  • OBJECTIVE. The objective was to determine the reliability of a portable forearm strength hydraulic dynamometer with a doorknob handle and assess its validity compared with a Cybex 6000 (Cybex International, Inc., Medway, MA) isometric torque assessment.

    METHOD. Eighteen volunteers (with a total of 30 forearms) participated in this one-session methodological study to determine the intra- and interrater reliability and criterion validity of a forearm dynamometer.

    RESULTS. Intrarater reliability for both assessors for pronation was (intraclass correlation coefficient [ICC]3,1 = .937�.961) and for supination was (ICC3,1 = .923�.968). Interrater reliability for pronation was ICC3,2 = .927 and for supination was ICC3,2 = .847. Criterion validity of the Baseline hydraulic dynamometer (Fabrication Enterprises Inc., White Plains, NY) compared with the Cybex 6000 was .574�.664 for pronation and .749�.750 for supination.

    CONCLUSION. The Baseline hydraulic dynamometer with a more functional doorknob handle had good intra- and interrater reliability and demonstrated moderate validity compared with Cybex 6000 strength testing