Intrarater reliability of the Humac NORM isokinetic dynamometer for strength measurements of the knee and shoulder muscles
SourceBMC Research Notes, 11, 1, (2018), pp. 15
Article / Letter to editor
Display more detailsDisplay less details
BMC Research Notes
SubjectRadboudumc 18: Healthcare improvement science RIHS: Radboud Institute for Health Sciences
OBJECTIVE: To determine the intrarater reliability of the Humac NORM isokinetic dynamometer for concentric and eccentric strength tests of knee and shoulder muscles. RESULTS: 54 participants (50% female, average age 20.9 +/- 3.1 years) performed concentric and eccentric strength measures of the knee extensors and flexors, and the shoulder internal and external rotators on two different Humac NORM isokinetic dynamometers, which were situated at two different centers. The knee extensors and flexors were tested concentrically at 60 degrees and 180 degrees /s, and eccentrically at 60 degrees s. Concentric strength of the shoulder internal and external rotators, and eccentric strength of the external rotators were measured at 60 degrees and 120 degrees /s. We calculated intraclass correlation coefficients (ICCs), standard error of measurement, standard error of measurement expressed as a %, and the smallest detectable change to determine reliability and measurement error. ICCs for the knee tests ranged from 0.74 to 0.89, whereas ICC values for the shoulder tests ranged from 0.72 to 0.94. Measurement error was highest for the concentric test of the knee extensors and lowest for the concentric test of shoulder external rotators.
Upload full text
Use your RU credentials (u/z-number and password) to log in with SURFconext to upload a file for processing by the repository team.