The methods of validation the experimental measurement device for ground reaction forces during ice hockey skating
Abstract
The reliability and validity of measuring device used in human movement research is usually determined by their measurement error. Common practice in recent research is used the equipment much more accurate than is required by practical applications of research.
The modern trend is, however, individualization and the creation of specific new measuring devices that can be used in the research. Those devices itself requires their validation (Stergiou 2004).
The creation new specific equipment can not always ensure such accuracy in prototype that would far exceed the requirements of a desired research. In the Laboratory of Extreme Loading (BEZ) was newly designed a measuring device which has undergone a process of validation by specifying measurement error.
This process of validation was based on comparison the newly designed measuring device (measuring skates) with non-specific international standard dynamometer Kistler(R). They were applied the basic methodologies for determining measurement errors for the construction of new measuring device.
The result is the determination of experimental error of measuring device for two components of reaction force and point of action of the force on skate''s blade. Experimental measurement device has a measurement error for Ft +- 8.6%, for Fo +- 10.6% and for point of action of the force x +- 8.4%.