摘要:The clarification of parameters to determine the walking pattern is important for the understanding of the walking mechanism. Infants walk with different postures from adults, and the dynamic characteristics in infants differ from those in adults. It is possible for the “walking posture” to provide a set of the parameters which determine the walking pattern. This study examines the influence of walking postures on the external forces for adult subjects and tests the existence of a relationship between the walking posture and the external forces. 20 subjects, aged 18 to 22, walked with normal posture, forward-inclined trunk and backward-inclined trunk, other 16 subjects walked with normal posture, flexed knees and stiff knees, other 20 subjects walked with normal posture, open legs and closed legs. The results of the comparison between normal posture and the other postures show that the differences in walking posture influence the external forces. We are confident that there are causal relationships between the walking posture and the external forces.