title: On the biomechanics of human hip complex in vivo--I. Kinematics for determination of the maximal voluntary hip complex sinus.
abstract: In recent years, multisegmented mathematical models of the total human body have gained increasing attention in view of the high cost of experiments with human cadavers and/or anthropometric dummies. While these models can simulate very complicated load-motion situations, their effectiveness depends heavily on the proper biomechanical description and modeling of the major articulating joints of the human body. In a research effort to obtain the in vivo biomechanical joint property data suitable for incorporation into these models, the senior author and his associates recently developed a new kinematic and force data collection methodology by means of sonic emitters. By applying and extending this data collection methodology, this paper in Part I presents kinematics for determination of the maximal voluntary hip complex sinus. An overdeterminate number of sonic emitters is utilized and the 'most accurate' three-dimensional kinematic data set is selected by first establishing a selection criterion. Quantitative results obtained from three male subjects are presented in a functional expansion form relative to a locally-defined joint axis system as well as in the form of globographic representation relative to the torso-fixed axis system.
authors.affiliation: Department of Engineering Mechanics, Ohio State University, Columbus 43210.
authors.forename: A E
authors.initials: AE
authors.lastname: Engin
authors.forename: S M
authors.initials: SM
authors.lastname: Chen
mesh_terms: D001696:Biomechanical Phenomena; D006621:Hip Joint / Q000502:physiology*; D006801:Humans; D008297:Male; D008954:Models, Biological; D009068:Movement; D012815:Signal Processing, Computer-Assisted