The Experiment Research On The 3-D Trajectory Of The Pelvis During Human Walking

The study of the pelvis trajectory during human walking has an important science significance and applied value in the fields of medical treatment, physical training, rehabilitation, anthropology, astrionics, man-machine engineering and so on. In order to obtain the pelvis trajectory during human walking this subject commences with the home and overseas development actuality, and discusses mainly several aspects as following:A new method of measure the pelvis trajectory during human walking on a treadmill is presented, and then the measurement principle and mathematics model are discussed in detail. The dynamometer insole system is designed and a new gait analyses method namely phase summation law is also presented.The data acquisitions methods based on the photoelectric encoder and based on the dSPACE system are devised early or late. The sport parameters processing and computation means and the fusion processing between the gait parameters and the pelvis motion parameters are also expounded.The pelvis trajectory during human walking and the variation rule are analyzed based on a large number of experiments. Taking the pelvis trajectories in the medial-lateral and vertical directions as the major study content, this thesis discusses the deduce processing of their mathematics models including the models of the motion amplitude, cycle and original phase.In the opinion of the experimental data, based on the theoretical analyses the thesis obtains eventually the mathematics models of the pelvis trajectories and the partial gait parameters during human walking. These conclusions prove the accuracy and the feasibility of the measurement system.