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Reliability of isokinetic ankle dorsiflexor strength measurements in healthy young men and women
Department of Physical Therapy, Lund University.
Department of Physical Therapy, Lund University.
Department of Physical Therapy, Lund University.
1999 (English)In: Scandinavian Journal of Rehabilitation Medicine, ISSN 0036-5505, E-ISSN 1940-2228, Vol. 31, no 4, p. 229-39Article in journal (Refereed) Published
Abstract [en]

The purposes of this study were: (i) to determine the test-retest reliability of isokinetic ankle dorsiflexor strength measurements in young healthy adults using the Biodex dynamometer, and (ii) to examine several statistical measures for the interpretation of reliability. Thirty men and women (mean age 23 +/- 3 years) performed three maximal concentric contractions at 30 degrees/s, 60 degrees/s, 90 degrees/s, 120 degrees/s and 150 degrees/s. Reliability of peak torque, work and torque at a specific time were assessed by calculating the intraclass correlation coefficient (ICC 2,1), Pearson product moment correlation coefficient (r), standard error of the measurement (SEM), method error (ME) and coefficient of variation (CV), and by plotting the differences between observations against their means. Isokinetic tests of ankle dorsiflexor strength in healthy young adults using the Biodex dynamometer were highly reliable (ICC 0.61-0.93). It is recommended that test-retest reliability analyses include the ICC and assessments of measurement errors (SEM, ME or CV), as well as graphs to indicate any systematic variations in the data.

Place, publisher, year, edition, pages
1999. Vol. 31, no 4, p. 229-39
Identifiers
URN: urn:nbn:se:ltu:diva-3305Local ID: 11c9a8b0-0ab1-11dc-9854-000ea68e967bOAI: oai:DiVA.org:ltu-3305DiVA, id: diva2:976162
Note
Upprättat; 1999; 20070525 (lotfra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

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