رسالة جامعية
Biomechanical analysis of carpal flexion and extension
| العنوان: | Biomechanical analysis of carpal flexion and extension |
|---|---|
| المؤلفون: | Hallbeck, M. Susan |
| المساهمون: | Industrial Engineering and Operations Research, Kroemer, Karl H. E., Ayoub, M. M., Dryden, Robert D., Snyder, Harry L., Williges, Robert C. |
| بيانات النشر: | Virginia Tech |
| سنة النشر: | 1990 |
| المجموعة: | VTechWorks (VirginiaTech) |
| مصطلحات موضوعية: | LD5655.V856 1990.H344, Carpus (Animal anatomy) -- Range of motion, Joints -- Range of motion, Wrist -- Range of motion |
| الوصف: | An experiment was performed to evaluate the relations between active range of motion (ROM) and upper limb anthropometric dimensions. Eight anthropometric dimensions, forearm length, distal and proximal forearm circumferences, wrist breadth, wrist thickness, wrist circumference, hand breadth, and hand length in combination with gender, wrist position, and direction of motion or exertion were evaluated to determine their effects on instant center of rotation (ICOR) and the magnitude of force exertion. The knowledge gained from analysis of the study data will be the first step in the formulation of a biomechanical model of wrist flexion and extension. Such a model would predict forces and torques at specific wrist postures and be employed to reduce cumulative trauma disorders of the wrist. Sixty right-hand dominant subjects (30 male, 30 female) between 20 and 30 years of age all reporting no prior wrist injury and good to excellent overall physical condition, were employed in this study. The upper limb anthropometric dimensions and ROM were measured and recorded for each subject. The anthropometric dimensions were compared to tabulated data. The measured active ROM values were compared with values in the literature. Correlation coefficients between pairs of anthropometric variables (by gender) were calculated. The mean active ROM measures, 164.0 deg for females and 151.8 deg for males, were significantly different ( Z = 2.193, p = 0.014). The relationships between the anthropometric variables and active ROM were analyzed by three methods: correlation between ROM and each anthropometric dimension, prediction (regression) equations, and analysis of variance (ANOVA). No correlation coefficient between ROM and any anthropometric dimension was greater than 0.7. No prediction equation, based upon linear and quadratic combinations of anthropometric dimensions variables, was above the threshold of acceptability ( R² 0.5). The results of the ANOVA showed a significant effect for gender. The ICOR had been hypothesized to be ... |
| نوع الوثيقة: | doctoral or postdoctoral thesis |
| وصف الملف: | x, 134 leaves; BTD; application/pdf |
| اللغة: | English |
| العلاقة: | OCLC# 22251706; LD5655.V856_1990.H344.pdf; etd-02012006-141703; http://hdl.handle.net/10919/26086Test; http://scholar.lib.vt.edu/theses/available/etd-02012006-141703Test/ |
| الإتاحة: | http://hdl.handle.net/10919/26086Test http://scholar.lib.vt.edu/theses/available/etd-02012006-141703Test/ |
| حقوق: | In Copyright ; http://rightsstatements.org/vocab/InC/1.0Test/ |
| رقم الانضمام: | edsbas.EF93DAF5 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |