Patent ID: 8348862

Claim:
A muscular energy state analysis system for a swing motion, comprising: a swing implement, for a user to perform the swing motion, and comprising an acceleration sensor for sensing acceleration of the swing implement when the swing implement is swung, so as to generate a swing speed data; a plurality of signal detection modules, for detecting a plurality of electromyographic (EMG) signals generated by a plurality of muscles of the user; a database, for storing a muscular energy sample value, wherein the muscular energy sample value comprises a swing speed sample value and a plurality of corresponding muscular performance sample values; a muscular energy analysis module, for analyzing the EMG signals and the swing speed data so as to obtain a plurality of muscular performance values, wherein the muscular energy analysis module comprises a signal analysis module and a muscular energy determination module, the signal analysis module performs a time-domain analysis on the EMG signals so as to obtain a plurality of muscle exertion intensity values, and the muscular energy determination module calculates the muscular performance values by using the muscle exertion intensity values, wherein the signal analysis module further performs a frequency-domain analysis on the EMG signals so as to obtain a fatigue index value and forms a two-dimensional coordinate system by using one of the muscle exertion intensity values and the fatigue index value; and a comparison module, for comparing the swing speed data and the plurality of muscular performance values with the muscular energy sample value in the database, so as to generate a comparison result data, wherein the comparison module analyzes a target quadrant where a point defined by the muscle exertion intensity value and the fatigue index value is, the comparison module determines whether the user is in the a fatigue state according to the quadrant where the point is, and when the comparison module determines that the user is in the fatigue state, the comparison module generates a rest suggestion information.