Mean curve of force of 8 foot-specimen, talonavicular joint. summerized diagramm for all feet, mean value and standard deviation. To get this diagram we first averaged the time course of the force values for each foot (i.e. five runs per foot). Each avaraged time course was then normalized to 100% by the respective maximum value of force. The time course for all feet represents therefore the avaraged time course of all the normalized force values. Force values for native (native) and tibiotalar arthrodesis (aOSG) are overlayed as depicted in the legend insert.