TY - JOUR
T1 - Segment inertial properties of Chinese adults determined from magnetic resonance imaging
AU - Cheng, Cheng Kung
AU - Chen, Hsiang Ho
AU - Chen, Chen Sheng
AU - Lee, Chen Lung
AU - Chen, Chih Yong
N1 - Funding Information:
This study was supported by the Institute of Occupational Safety and Health, Council of Labor Affairs, Executive Yuan of ROC. Special thanks to Dr. Wing P. Chan of Department of radiology, Taipei Medical College and Hospital for his kind help in MRI technology.
PY - 2000/10
Y1 - 2000/10
N2 - Objective. To improve the simulation of the task of manual materials handling for Chinese laborers, this study estimated the inertial properties of Chinese adults by using magnetic resonance imaging. Design. Magnetic resonance imaging was used as a means of estimating inertial property. Following the estimation of inertial properties for the Chinese subjects, comparison between estimates for Chinese and Caucasian populations was made. Background. Estimates of segment inertial properties are frequently based on data and procedures developed from human cadaver studies in which inertial properties have been measured directly. The errors might be derived from the utilization of the Caucasian data were questioned in our previous study on the spinal force prediction of the Chinese subjects during manual lifting. Methods. Magnetic resonance images were scanned at a 20 mm interval from eight males aged 26 (S.D., 4) years. Tissues were differentiated and verified using adequate intensity thresholds on each slice, and the segmental volume and mass were integrated by slices. The moments of inertia for each segment were then determined about the anatomical axes using the parallel axis theorem. Results. Results showed that our estimates were close to the data derived by Dempster with a slight deviation. Larger percentages of mass were found in the upper arm (4.0%) and thigh (13.6%) than in previous studies. On the other hand, smaller moments of inertia about three axes were noted in the shank. Conclusion. Biomechanical modeling of the human body requires accurate prediction of body segment parameters that include measures of volume, mass, center of mass, and moments of inertia. This study suggests the need to estimate the inertial properties of segments from the Chinese population. Application of the data may improve the simulation of the task of manual materials handling for Chinese laborers in the future studies.RelevanceBiomechanical modeling of the human body requires accurate prediction of body segment parameters that include measures of volume, mass, center of mass, and moments of inertia. To obtain the basic data of segment parameters for the Chinese adults, this study was proceeded with the magnetic resonance imaging technique. Copyright (C) 2000 Elsevier Science Ltd.
AB - Objective. To improve the simulation of the task of manual materials handling for Chinese laborers, this study estimated the inertial properties of Chinese adults by using magnetic resonance imaging. Design. Magnetic resonance imaging was used as a means of estimating inertial property. Following the estimation of inertial properties for the Chinese subjects, comparison between estimates for Chinese and Caucasian populations was made. Background. Estimates of segment inertial properties are frequently based on data and procedures developed from human cadaver studies in which inertial properties have been measured directly. The errors might be derived from the utilization of the Caucasian data were questioned in our previous study on the spinal force prediction of the Chinese subjects during manual lifting. Methods. Magnetic resonance images were scanned at a 20 mm interval from eight males aged 26 (S.D., 4) years. Tissues were differentiated and verified using adequate intensity thresholds on each slice, and the segmental volume and mass were integrated by slices. The moments of inertia for each segment were then determined about the anatomical axes using the parallel axis theorem. Results. Results showed that our estimates were close to the data derived by Dempster with a slight deviation. Larger percentages of mass were found in the upper arm (4.0%) and thigh (13.6%) than in previous studies. On the other hand, smaller moments of inertia about three axes were noted in the shank. Conclusion. Biomechanical modeling of the human body requires accurate prediction of body segment parameters that include measures of volume, mass, center of mass, and moments of inertia. This study suggests the need to estimate the inertial properties of segments from the Chinese population. Application of the data may improve the simulation of the task of manual materials handling for Chinese laborers in the future studies.RelevanceBiomechanical modeling of the human body requires accurate prediction of body segment parameters that include measures of volume, mass, center of mass, and moments of inertia. To obtain the basic data of segment parameters for the Chinese adults, this study was proceeded with the magnetic resonance imaging technique. Copyright (C) 2000 Elsevier Science Ltd.
KW - Anthropometry
KW - Biomechanics
KW - Chinese adults
KW - Inertial properties
KW - Magnetic resonance imaging
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U2 - 10.1016/S0268-0033(00)00016-4
DO - 10.1016/S0268-0033(00)00016-4
M3 - Article
C2 - 10936427
AN - SCOPUS:0034308399
SN - 0268-0033
VL - 15
SP - 559
EP - 566
JO - Clinical Biomechanics
JF - Clinical Biomechanics
IS - 8
ER -