کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4057637 1265698 2008 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A comparison of four functional methods to determine centers and axes of rotations
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی ارتوپدی، پزشکی ورزشی و توانبخشی
پیش نمایش صفحه اول مقاله
A comparison of four functional methods to determine centers and axes of rotations
چکیده انگلیسی

Several functional methods to determine joint centers of rotation (CoR) and axes of rotation (AoR) have been reported in the literature. These have previously been compared using noise introduced to marker positions. The current study compares four of these methods under both rigid body and deformable body conditions using a mechanical analog of the lower extremity. In the latter condition, significant inter-marker distance changes were present in patterns directly related to the joint motion. Both hip CoR location and knee AoR location and direction are determined. Results indicate that while all methods produced accurate measures under rigid body conditions (<5 mm location and <2° direction), there were many differences between methods in deformable conditions. Under these conditions, the method described by Gamage and Lasenby performed better than the other methods examined. Maximum mean errors for this technique were approximately 1 cm for CoR and AoR locations and 1° for AoR direction.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Gait & Posture - Volume 28, Issue 4, November 2008, Pages 673–679
نویسندگان
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