歩行動作に伴う足囲ボールおよび足先長の変化 : 成人女性の足型レプリカ採取法による試み

概要

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Changes of ball joint girth and toe length of the foot in walking were discussed by making plaster models of the foreparts of three adult females' feet using two kinds of clay, soft and hard, in simulated walking motions in the stance phase. The walking motion on the hard clay approximates the condition for normal walking. The results of the measurements on the hard clay were as follows: 1) Ball joint girth decreases gradually with heel-up in the stance phase and shortens 2.7% (6.4mm) compared to measurements in the foot-flat phase or 2.1% (5mm) compared to measurements in the stationary position just before toe-off. 2) Plantar toe length increases gradually with heel-up in the stance phase and stretches 13.4% (9.5mm) compared to measurements in the foot-flat phase just before toe-off. These results provide useful information on the quantity of reduction of ball joint girth and toe gap for shoe design.
1999-09-15