Using mass distribution information to model the human thigh for body segment parameter estimation.

Accurate estimations of body segment inertial parameters (BSPs) are required to calculate the kinetics of motion. The purpose of this study was to develop a geometric model of the human thigh segment based on mass distribution properties determined from dual energy x ray absorptiometry (DEXA). One hundred subjects from four populations underwent a DEXA scan and anthropometric measurements were taken. The mass distribution properties of the thigh segment were determined for 20 subjects, a geometric model was developed, and the model was applied to the remaining 80 subjects. The model was validated by comparing to benchmark DEXA measurements. Four other popular models in the literature were also evaluated in the same manner No one set of predictors performed best for a particular group or BSP, however modeling the mass distribution properties of the segment allows the assumption of constant density while still accurately representing the inertial properties of the segment and provides promise for future development of BSP models.

[1]  Ernest P Hanavan,et al.  A mathematical model of the human body , 1964 .

[2]  C. E. Clauser,et al.  Weight, volume, and center of mass of segments of the human body , 1969 .

[3]  John T. McConville,et al.  INVESTIGATION OF INERTIAL PROPERTIES OF THE HUMAN BODY , 1975 .

[4]  R. Jensen,et al.  Estimation of the biomechanical properties of three body types using a photogrammetric method. , 1978, Journal of biomechanics.

[5]  J. Fleiss,et al.  Intraclass correlations: uses in assessing rater reliability. , 1979, Psychological bulletin.

[6]  H Hatze,et al.  A mathematical model for the computational determination of parameter values of anthropomorphic segments. , 1980, Journal of biomechanics.

[7]  H K Huang,et al.  Evaluation of cross-sectional geometry and mass density distributions of humans and laboratory animals using computerized tomography. , 1983, Journal of biomechanics.

[8]  Kathleen M. Robinette,et al.  Anthropometric and Mass Distribution Characteristics of the Adult Female. Revised , 1983 .

[9]  Determination of the moment of inertia of limb segments by a simple method. , 1986, Journal of biomechanics.

[10]  T. Ackland,et al.  The Uniform Density Assumption: Its Effect upon the Estimation of Body Segment Inertial Parameters , 1988 .

[11]  Philip E. Martin,et al.  The use of magnetic resonance imaging for measuring segment inertial properties. , 1989, Journal of biomechanics.

[12]  Philip E. Martin,et al.  Estimating segment inertial properties: comparison of magnetic resonance imaging with existing methods. , 1990, Journal of biomechanics.

[13]  David A. Winter,et al.  Biomechanics and Motor Control of Human Movement , 1990 .

[14]  D. Sale,et al.  Reproducibility of dual-energy x-ray absorptiometry. , 1994, Canadian Association of Radiologists journal = Journal l'Association canadienne des radiologistes.

[15]  Gavin Reid,et al.  The Study of Human Body Segment Parameters in Biomechanics , 1994, Sports medicine.

[16]  R K Jensen,et al.  The application of segment axial density profiles to a human body inertia model. , 1995, Journal of biomechanics.

[17]  J. G. Andrews,et al.  Methods for investigating the sensitivity of joint resultants to body segment parameter variations. , 1996, Journal of biomechanics.

[18]  The Prediction of Body Segment Parameters Using Geometric Modelling and Dual Photon Absorptiometry , 1998 .

[19]  D. Pearsall,et al.  The effect of segment parameter error on gait analysis results. , 1999, Gait & posture.

[20]  C. L. Chen,et al.  Segment inertial properties of Chinese adults determined from magnetic resonance imaging. , 2000, Clinical biomechanics.

[21]  J. Dowling,et al.  The measurement of body segment inertial parameters using dual energy X-ray absorptiometry. , 2002, Journal of biomechanics.

[22]  J. Dowling,et al.  Analysis of body segment parameter differences between four human populations and the estimation errors of four popular mathematical models. , 2003, Journal of biomechanical engineering.

[23]  Christopher M Powers,et al.  Anthropometric parameters in children: a comparison of values obtained from dual energy x-ray absorptiometry and cadaver-based estimates. , 2004, Gait & posture.

[24]  C. Powers,et al.  Determination of lower extremity anthropometric parameters using dual energy X-ray absorptiometry: the influence on net joint moments during gait. , 2004, Clinical biomechanics.

[25]  B. Dijkmans,et al.  Reproducibility of bone mineral density measurement in daily practice , 2004, Annals of the rheumatic diseases.

[26]  D. Pearsall,et al.  Segmental inertial parameters of the human trunk as determined from computed tomography , 1996, Annals of Biomedical Engineering.