| Summary: | 碩士 === 國立中興大學 === 生物產業機電工程學系所 === 97 === The necessary of school life in Taiwan junior and senior high school is the bag with one stripe. The stripe bag would lead to increase the trunk inclination and load bearing on shoulder, it would probability cause spine deformity and scoliosis.
We considered 11 age 20~23 years normal subjects (all males) and one 21 years old patient, they carried stripe bag on the right shoulder with 0%, 5%, 10%, 15% body weight to simulate the trunk movements. There were 23 markers on trunk and 8 markers on lower extremity during the gait experiment. We used Euler angle and angles defined by Frigo et al. (2003) to analyze the changes of angles of each segment on the sagittal, frontal and horizontal plane, and to find the tendency of the trunk movements during gait and the effect of the stripe bag.
The experiment results showed shoulder, pelvis and especially thoracic spine movements were limited by carrying stripe bag on the right shoulder, and the range of motion of trunk was increased for balance during gait. It also caused increase of trunk forward lean and trunk left inclination, and higher the right shoulder and lower the right side pelvis. And the conclusions of this study was that the weight of stripe bag should be lower than 5% body weight, and overload with stripe bag would cause spinal deformity, the humpback and thoracic scoliosis.
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