PROBLEM TO BE SOLVED: To provide a novel technique for detecting a walking cycle in a daily life correctly and in a space-saved manner, using a simple method.SOLUTION: A system for detecting a walking cycle is configured to measure time change of a height of a head 2 of a subject 1 who is walking, and detect a walking cycle based on a wave form of the time change of the height. The system for detecting a walking cycle comprises measurement means (camera 11) for measuring the time change of the height of the head 2 of the subject 1 who is walking, and calculation means 12 for detecting the walking cycle based on the wave form of the time change of the height.SELECTED DRAWING: Figure 1【課題】日常生活の歩行周期を正確に省スペースで簡便なシステムで検出する新たな技術を提供する。【解決手段】歩行中の被験者１の頭部２の高さの時間変化を計測し、その高さの時間変化の波形に基づいて歩行周期を検出する。この歩行周期の検出のためのシステムは、歩行中の被験者１の頭部２の高さの時間変化を計測する計測手段（カメラ１１）と、その高さの時間変化の波形に基づいて歩行周期を検出する演算手段１２を備える。【選択図】図１
