PMID: 8468341Mar 1, 1993Paper

A static dynamometer measuring multidirectional torques exerted simultaneously at the hip and knee

Journal of Biomechanics
D BourbonnaisB Arsenault

Abstract

The function of a static dynamometer measuring torques exerted simultaneously in the different anatomical planes of the hip (flexion-extension, abduction-adduction and internal-external rotation) and knee (flexion-extension) is described. Muscular torques were calculated in real time using a desktop computer from measurements of orthogonal forces applied at two locations and the lever arm values measured in each subject. The reliability of the force transducers was explored by examining their output, using calibrated weights, on three different days. The results were identical over this period of time, indicating that the transducers are highly reliable. A mechanical simulator of a lower limb was constructed to generate specific or combined torques of known values at the hip and knee. The torques measured by the dynamometer were found to be highly concordant with the known torques applied by the simulator, indicating that the torque measurements were valid. The usefulness of the dynamometer is demonstrated by evaluating the activity of the rectus femoris and biceps femoris muscles during static efforts exerted in various directions at the hip. In addition, the mechanical action of biarticular muscles at the hip was evaluated by...Continue Reading

References

Feb 1, 1989·Brain : a Journal of Neurology·D BourbonnaisW Z Rymer
Nov 1, 1982·Journal of Biomechanical Engineering·R A BrandF M van Krieken

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Citations

Nov 11, 2009·Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology·Mélanie MorinJean-François Pilon
Jun 1, 1997·Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology·M H DuboisD Gravel
Sep 28, 1998·IEEE Transactions on Rehabilitation Engineering : a Publication of the IEEE Engineering in Medicine and Biology Society·P BoissyM Leblanc
Oct 27, 1997·Archives of Physical Medicine and Rehabilitation·P BoissyB A Arsenault
Nov 5, 2003·Neurourology and Urodynamics·Chantale DumoulinM-C Lemieux
Mar 14, 2001·Archives of Physical Medicine and Rehabilitation·A M Bertrand, D Bourbonnais

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