Abstract
The invention provides an imbalance early warning method based on gait analysis and a wearable device, and the method is executed by using the wearable device which is worn on a limb part of a user and comprises an inertial measurement unit, a processing unit and an output unit, and comprises the following steps that: the processing unit obtains a shaking angle threshold value corresponding to the user according to acceleration data obtained by the inertial measurement unit during a continuous multi-step walking period of the user; the processing unit calculates the shaking angle of the limb part of the user in each unit time according to angular velocity data obtained by the inertial measurement unit when the user advances; and the processing unit judges whether the shaking angle is larger than the shaking angle threshold value or not, and when it is judged that the shaking angle is larger than the shaking angle threshold value, the output unit is made to generate warning output used for indicating imbalance. Therefore, anti-falling early warning conforming to personal balance control capability can be provided.