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2007, Piran, Slovenia

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Ty [Nm]<br />

60<br />

50<br />

40<br />

30<br />

20<br />

10<br />

0<br />

0 5 10 15 20 25<br />

φ [deg]<br />

Fig. 7. Ty/φ characteristics of the measured boots<br />

Manikins<br />

DISCUSSION<br />

A new method for evaluating sagittal stiffness was developed. The method allows the<br />

derivation of the ratio Ty/φ, an index of ankle sagittal stiffness. This method can be used for<br />

evaluating existing boots, and also in the development of new boots, where a compromise<br />

between good ankle protection and low ankle sagital stiffness must be achieved.<br />

ACKNOWLEDGEMENTS<br />

The kind assistance of Mr. David Blair (Armasuisse, Switzerland) is gratefully acknowledged.<br />

boot 1<br />

boot 2<br />

boot 3<br />

453

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