Analysis system and method for measuring the knee joint trajectory rider of the bicycle

One kind of measurement system and method for a bicycle saddle trajectory of the knee joint analysis, is mainly used to measure and analyze the knee joint trajectory rider riding the bicycle, which measuring system comprises at least a treadable when the means is fixed to a lamp tibial tuberosity at the rider's lower limb, an image capturing device and a knee trajectory analysis means, so as to circulate on the rider in pedaling treadable means, the image capturing device capable of capturing having a lower extremity of the center position of the rider and the rider for emitting image light spot trace an image pedaling cycle when the lamp body, and the trajectory analysis means is capable of generating a substantially elliptical trajectory FIG, and the rider to a center line as a reference, the offset data comparison analysis, it is possible to obtain a knee trajectory biking track the long axis of the elliptical trajectory of FIG plantar force distribution , then based on the knee joint trajectory biking offset plantar force distribution data, with the insole style for the rider.