| Summary: | 碩士 === 國立成功大學 === 醫學工程研究所 === 88 === Abstract
There are many physiological changes during pregnancy, especially in body weight, body shape, and endocrine system. The increases in body weight and body mass are mainly distributed over the trunk and pelvic area. This creates loads on the spine, makes body alignment much different, and increases the moment of inertia in the pelvis. In the meanwhile, the "relaxin" in serum affects the relaxity of all joints, especially in the pelvis. Those changes make the pregnant women different from the non-pregnant women in posture and gait pattern. At the same time, activities of daily living become more difficult. The problems should be solved. But there was still no published paper discussing the posture and gait changes of the pregnant women in details and in a whole.
When studying on the gait analysis of the pregnant women, there are two problems: the shift of hip joint center and the mass distribution during pregnant. In this study, we use the optimization method to define the hip joint center of the pregnant women. The optimization method can compensate the lack of the anthropometric data of the pregnant women. But the problem of mass distribution in the pregnant women is still necessary to be solved by non-invasive methods.
Due to the variations of physiological changes in the pregnant women, it is difficulty to standardize the gait analysis of pregnant women, even in the same gestational age. So we suggest the "single subject methodology" for the gait analysis of the pregnant. The datas of gait analysis are also compared with qestionnaires for better analysis. The results reveal that there really have some correlations between the significant finding of gait analysis and sacro-iliac pain of the pregnant women. The sacro-iliac pain often
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