| Walking is the most common exercise in human daily life.The human body can maintain the stability during walking by virtue of its own neuromodulation system and musculoskeletal movement.Therefore,research on the stability of human gait improves quality of people’s lives.The sense of well-being is of great significance.In this paper,a combination of experiment and simulation was conducted,and 13 young male subjects were recruited to conduct straight walking experiments in dry ground environment and oiled ground environment,using Vicon three-dimensional motion capture system,force table and surface electromyography.The signal system collects relevant parameters of the subject’s lower extremities.The AnyBody modeling system was used to carry out simulation experiments to obtain the joint reaction force and muscle strength data of the lower limbs of the subjects in two environments.The human gait characteristics were analyzed from the internal and external regulation mechanism.The gait stability adjustment process was comprehensively explained by the combination of one-way ANOVA and incremental ratio.The conclusions are as follows:(1)Under the disturbance of the normal medium during the walking of the human body,the self-regulating gait stability external movement regulation mechanism is as follows:the hip joint reduces the sagittal motion range;the knee joint reduces the joint movement angle,and the flexion is enhanced in the early stage of the support phase.Exercise and enhance stretching in the later stage;the ankle joint weakens the dorsiflexion movement in the early stage of the support phase and enhances the dorsiflexion movement at the end to maintain gait stability.(2)When the human body is disturbed by the oil medium during normal walking,the body’s internal body regulates muscle contraction through the nervous system to regulate limb movement and maintain gait stability,which is manifested in the lateral femoral muscle,the medial femoral muscle,the tibialis anterior muscle and the gastrocnemius muscle.During the supporting phase,the gastrocnemius muscle is effective in the beginning,and the medial and lateral femoral muscles play a significant role in the middle.The tibialis anterior muscle plays a significant role in the end.The conclusion of this study can provide a theoretical basis for the study of the lower limb Kang auxiliary device,and at the same time can guide the design and development of the biped anthropomorphic robot. |