The present invention relates to an apparatus for measuring the balance ability; postural deviation, reflex and fall risk assessment of a human subject. In particular, the present invention comprises of an elastic support mounted platform with dynamic response to external motion stimuli, an IMU and data analysis software processing device. The dynamic response from the platform also simulates realistic experience in moving over rough terrain with different topography.本發明是關於一種用以測量人類對象的平衡能力、姿勢偏移、反應與跌倒風險評估的裝置。具體而言,本發明包括對外部動作刺激具有動態響應且安裝有彈性支座的平臺、慣性測量單元與資料分析軟體處理裝置。來自於平臺的動態響應也可模擬在具有不同地形地貌的崎嶇地區移動的逼真體驗。