Design, construction and validation of a knee brace angle measuring device for online monitoring
Translated title
Term
4. semester
Education
Publication year
2014
Submitted on
2014-06-02
Pages
48
Abstract
The purpose of this study was to develop a product that could measure the knee angle during rehabilitation exercises. A product was created with a PolyPower stretch sensor placed on a silicone block that was attached to a CTi OTS knee brace. The stretch sensor provides a capacitance value that is proportional to the amount of stretch. The product was tested in both static and dynamic movements. Three dynamic tests were performed, the first test consisted of five repeated squats, the second of five repeated lunges and the third test was a two times five minutes run on a treadmill, first with shorts on and second with pants on. The pants were worn to see if the device got affected by temperature and friction. A high correlation between the capacitance and knee angle was found in the calibration. The results showed that the developed product has the potential to be used in knee angle measurements low dynamic movements. However, some unforeseen technical problem occurred which require further refinement. As soon as these refinements are in place the results produced by the product have to be compared to accurate reference methods.
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