PROBLEM TO BE SOLVED: To provide a lower limb determining apparatus which makes measured values associated with lower limb physical strength, such as a weight ratio, easier for a subject to recognize.SOLUTION: A lower limb determining apparatus 10 includes: an information acquiring unit 11 for acquiring input information including a measured weight ratio that shows a lower limb muscular strength based on the weight of a subject a memory 12 provided with the weight ratio and a first evaluation value that shows risk that walking may be difficult, in which a weight ratio-first evaluation value relation that shows the relation between the weight ratio and the first evaluation value is memorized and a determination part 13 for outputting a correspondence evaluation value corresponding to the input information based on the of weight ratio-first evaluation value relation.COPYRIGHT: (C)2013,JPO&INPIT【課題】体重比等の下肢体力に関する測定値を被験者にとってより認識し易くする下肢判定装置を提供する。【解決手段】下肢判定装置10は、被験者の体重あたりの下肢筋力を示す測定体重比を含む入力情報を取得する情報取得部11と、体重比と歩行を困難にする危険度を示す第1の評価値とを備え、体重比と第1の評価値の関係を示す体重比-第1の評価値関係が記憶されている記憶部12と、体重比-第1の評価値関係に基づき、入力情報に対応する対応評価値を出力する判定部13と、を備える。【選択図】図2