PROBLEM TO BE SOLVED: To provide a gait analysis technique which prevents the crisis or worsening of the knee trouble of a subject cause by walking.SOLUTION: A gait analysis method comprises an acquisition step (S11) for acquiring acceleration data of a subject during walking, and an evaluation step (S12) which evaluates the risk of the knee trouble of the subject caused by walking, on the basis of the acceleration data acquired by the acquisition step (S11).SELECTED DRAWING: Figure 1【課題】歩行に伴う被験者の膝障害の発症又は悪化を防ぐ歩行分析技術を提供する。【解決手段】歩行分析方法は、歩行中の被験者の加速度データを取得する取得工程（Ｓ１１）と、前記取得工程（Ｓ１１）で取得された加速度データに基づいて、歩行に伴う前記被験者の膝障害のリスクを評価する評価工程（Ｓ１２）と、を含む。【選択図】図１
