The gait analysis technique for the lower limbs is currently one of the important clinical research directions for the diagnosis, the treatment and the intervention of osteoarthritis. This paper reviews the current clinical applications of three gait analysis techniques, the pressure sensing technology (the plantar pressure system), the computer vision technology (the marked gait analysis system and the unmarked gait analysis system) and the wearable technology (the wearable sensor system). Comparison is made with respect to the measurement principle, the experimental method and the clinical application advantages and disadvantages of the asynchronous state analysis system. Due to its complicated operation and the high professional requirements, it is not conducive for non-professionals to operate the computer vision technology equipment. With the wearable inertial sensing system technology, the personal, intelligent and comfortable wearable devices could be used. Due to its outstanding technical advantages and wide application prospects, it is an important development direction in the field of the medical prevention and the medical security in the future.

gait analysis systems  /  osteoarthritis  /  sensor unit