Abstract
The purpose of this study was to investigate effect of the position of load of Rucksack-type Orthosis on the external moment about the hip joint during gait of spondylosis patients. The participants were five patients and nine healthy elderly people. The gait motion was captured with VICON MX T-series and the ground reaction forces during support phase were collected with two Kistler force platforms. A high, low and pelvic height orthosis of 1 kg weight was put on the back of the participant. The patients with the high back and pelvic orthosis showed the decrease in the maximum of the external forward moment about the hip joint during one walking cycle, though there were no unaskable changes in trunk posture and walking pattern. Horizontal anterior-posterior moment was the longest of the components of the external moment about the hip joint during gait. The results indicated that the load on the lower back muscles would decrease with the high and pelvic orthoses, and that the adjustment of orthosis in weight position might improve suitability of orthosis by
considering patient’s trunk posture and walking speed.
