Reliability assessment of isometric knee extension measurements with a computer-assisted hand-held dynamometer
Deutscher übersetzter Titel: | Pruefung der Reliabilitaet von Messungen der isometrischen Kniestreckkraft mit Hilfe eines computergestuetzten handgehaltenen Dynamometersystems |
---|---|
Autor: | Roebroeck, M.E.; Harlaar, J.; Lankhorst, G.J. |
Erschienen in: | Archives of physical medicine and rehabilitation |
Veröffentlicht: | 79 (1998), 4, S. 442-448, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Gedruckte Ressource |
Sprache: | Englisch |
ISSN: | 0003-9993, 1532-821X |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU199806302333 |
Quelle: | BISp |
Abstract
Objective: To assess clinically relevant indexes of measurement error of hand-held dynamometer measurements using a computer-assisted hand-held dynamometer (CAHN-DY). Design: In separate sessions, different physical therapists performed repeated measurements of maximal isometric knee extension. Setting: Four physical therapy practices and outpatient departments. Patients: Consecutive samples of 30 male and 28 female patients aged 13 to 77 years, with isolated orthopedic knee disorders participated in this study. Main Outcome Measures: For intrarater and interrater applications, the standard error of measurement (SEM) and related 95% confidence intervals and minimal detectable changes were assessed. Results: Sixty percent of the patients performed within the therapist's upper force limit. Variance between sessions performed by the same or different therapists accounted for a large percentage of the measurement error (70% to 81%). For single measurements, the standard error of measurement was assessed not to exceed 10 Nm. Minimal detectable changes for different designs varied from 13.8 to 28.2 Nm. Conclusions: The CAHN-DY facilitated standardization of test performance in a satisfactory manner, resulting in less measurement error compared with simple hand-held dynamometry. Verf.-Referat