Xu Xu

Assistant Professor

 
Prior to joining the NC State faculty, Xu Xu started his career as a postdoctoral research fellow in the School of Public Health at Harvard University. From there he became a research scientist in Liberty Mutual Research Institute for Safety where he received best-paper and outstanding scientific contribution award multiple times.

His research interests are generally in the areas of biomechanical modeling, optimization, simulation and data mining with respect to human daily activities to promote workplace and at-home injury prevention and driving safety. Xu has published more than 40 journal articles on the aforementioned research topics. He has also served as a research advisor for three postdoctoral research fellows.

Meet Xu Xu: ISE Welcomes New Faculty
 
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Education

Ph.D. 2008

Doctor of Philosophy in Industrial Engineering

NC State University

MSIE 2006

Master of Science in Industrial Engineering

NC State University

BSIE 2004

Bachelor of Science in Industrial Engineering

Tsinghua University

Research Description

Human factors and ergonomics engineering, occupational biomechanics, optimization-based biomechanical modelling, data mining on human motion data, occupational musculoskeletal injury prevention.

Publications

Identification of heel strike under a slippery condition
Chang, W. R., & Xu, X. (2018), Applied Ergonomics, 66, 32–40.
Impact of posture choice on one-handed pull strength variations at low, waist, and overhead pulling heights
Yu, D., Xu, X., & Lin, J. H. (2018), International Journal of Industrial Ergonomics, 64, 226–234.
New technologies in human factors and ergonomics research and practice
Lin, J. H., Kirlik, A., & Xu, X. (2018), Applied Ergonomics, 66, 179–181.
A computer vision based method for 3D posture estimation of symmetrical lifting
Mehrizi, R., Peng, X., Xu, X., Zhang, S. T., Metaxas, D., & Li, K. (2018), Journal of Biomechanics, 69, 40–46.
Using a marker-less method for estimating L5/S1 moments during symmetrical lifting
Mehrizi, R., Xu, X., Zhang, S. T., Pavlovic, V., Metaxas, D., & Li, K. (2017), Applied Ergonomics, 65, 541–550.
Using the Microsoft Kinect (TM) to assess 3-D shoulder kinematics during computer use
Xu, X., Robertson, M., Chen, K. B., Lin, J. H., & McGorry, R. W. (2017), Applied Ergonomics, 65, 418–423.
An entropy-assisted musculoskeletal shoulder model
Xu, X., Lin, J. H., & McGorry, R. W. (2017), Journal of Electromyography and Kinesiology, 33, 103–110.
Ergonomic evaluation of standard and alternative pallet jack handless
Harris-Adamson, C., Mielke, A., Xu, X., & Lin, J. (2016), International Journal of Industrial Ergonomics, 54, 113–119.
Evaluation of regression-based 3-D shoulder rhythms
Xu, X., Dickerson, C. R., Lin, J. H., & W., M. G. R. (2016), Journal of Electromyography and Kinesiology, 29, 28–33.
Hip and knee net joint moments that correlate with success in lateral load transfers over a low friction surface
Catena, R. D., & Xu, X. (2016), Ergonomics, 1–9.
Accuracy of the Microsoft Kinect for measuring gait parameters during treadmill walking
Xu, X., McGorry, R. W., Chou L. S., L., H., J., & Chang, C. C. (2015), Gait & Posture, 42(2), 145–151.
Age-related differences in inter-joint coordination during stair walking transitions
Chiu, S. L., Chang, C. C., Dennerlein, J. T., & Xu, X. (2015), Gait & Posture, 42(2), 152–157.
Effects of Working Environment Factors and Operator Experience on Upper Extremity Mechanical Properties During Powered Hand Tool Use
Xu, X., & J., L. (2015), IIE Transactions on Occupational Ergonomics and Human Factors, 3(2), 81–90.
Evaluation of older driver head functional range of motion using portable immersive virtual reality
Chen, K. B., Xu, X., Lin, J. H., & Radwin, R. G. (2015), Experimental Gerontology, 70, 150–156.
Lower extremity kinematics that correlate with success in lateral load transfers over a low friction surface
Catena, R. D., & Xu, X. (2015), Ergonomics, 58(9), 1571–1580.
Using horizontal heel displacement to identify heel strike instants in normal gait
Banks, J. J., Chang, W. R., Xu, X., & Chang, C. C. (2015), Gait & Posture, 42(1), 101–103.
The accuracy of the Oculus Rift virtual reality head-mounted display during cervical spine mobility measurement
Xu, X., Chen, K. B., Lin, J. H., & Radwin, R. G. (2015), Journal of Biomechanics, 48(4), 721–724.
The validity of the first and second generation Microsoft Kinect? for identifying joint center locations during static postures
Xu, X., & McGorry, R. W. (2015), Applied Ergonomics, 49, 47–54.
Joint contribution to fingertip movement during a number entry task: an application of Jacobian matrix
Qin, J., Trudeau, M., Buchholz, B., Katz, J. N., Xu, X., & Dennerlein, J. T. (2014), Journal of Applied Biomechanics, 30(2), 338–342.
Shoulder muscle fatigue development in young and older female adults during a repetitive manual task
Qin, J., Lin, J. H., Buchholz, B., & Xu, X. (2014), Ergonomics, 57(8), 1201–1212.
Upper extremity kinematic and kinetic adaptations during a fatiguing repetitive task
Qin, J., Lin, J. H., Faber, G. S., B., B., & Xu, X. (2014), Journal of Electromyography and Kinesiology, 24(3), 404–411.
A regression model predicting isometric shoulder muscle activities from arm postures and shoulder joint moments
Xu, X., McGorry, R. W., & Lin, J. H. (2014), Journal of Electromyography and Kinesiology, 24(3), 419–429.
A regression-based 3-D shoulder rhythm.
Xu, X., Lin, J. H., & McGorry, R. W. (2014), Journal of Biomechanics, 47(5), 1206–1210.
The accuracy of an external frame using ISB recommended rotation sequence to define shoulder joint angle
Xu, X., McGorry, R. W., & Lin, J. H. (2014), Gait & Posture, 39(1), 662–668.
The effect of age on the hand movement time during machine paced assembly tasks for female workers
Xu, X., Qin, J., Zhang, T., & Lin, J. (2014), International Journal of Industrial Ergonomics, 44(1), 148–152.
Effect of aging on inter-joint synergies during machine-paced assembly tasks
Xu, X., Qin, J., Catena, R. D., Faber, G. S., & Lin, J. H. (2013), Experimental Brain Research, 231(2), 249–256.
Shoulder joint loading and posture during medicine cart pushing task
Xu, X., Lin, J. H., & Boyer, J. (2013), Journal of Occupational and Environmental Hygiene, 10(8), 446–454.
The error of L5/S1 joint moment calculation in a body-centered non-inertial reference frame when the fictitious force is ignored
Xu, X., Faber, G. S., Kingma, I., Chang, C. C., & Hsiang, S. M. (2013), Journal of Biomechanics, 46(11), 1943–1947.
Assessing manual lifting tasks based on segment angle interpolations
Chang, C. C., Xu, X., Faber, G. S., Kingma, I., & Dennerlein, J. T. (2012), Work (Reading, Mass.), 41 Suppl 1, 2360–2363.
Coordinate transformation between shoulder kinematic descriptions in the Holzbaur et al. model and ISB sequence
Xu, X., Lin, J. H., & McGorry, R. W. (2012), Journal of Biomechanics, 45(15), 2715–2718.
Estimating 3-D L5/S1 moments during manual lifting using a video coding system: validity and interrater reliability
Xu, X., Chang, C. C., Faber, G. S., Kingma, I., & Dennerlein, J. T. (2012), Human Factors, 54(6), 1053–1065.
Estimation of 3-D peak L5/S1 joint moment during asymmetric lifting tasks with cubic spline interpolation of segment Euler angles
Xu, X., Chang, C. C., Faber, G. S., Kingma, I., & Dennerlein, J. T. (2012), Applied Ergonomics, 43(1), 115–120.
Transformation between different local coordinate systems of the scapula
Xu, X., Lin, J. H., Li, K., & Tan, V. (2012), Journal of Biomechanics, 45(15), 2724–2727.
Two linear regression models predicting cumulative dynamic L5/S1 joint moment during a range of lifting tasks based on static postures
Xu, X., Chang, C. C., & Lu, M. L. (2012), Ergonomics, 55(9), 1093–11103.
Estimation of low back moments from video analysis: a validation study
Coenen, P., Kingma, I., Boot, C. R., Faber, G. S., Xu, X., Bongers, P. M., & Dieen, J. H. (2011), Journal of Biomechanics, 44(13), 2369–2375.
The validity and interrater reliability of video-based posture observation during asymmetric lifting tasks
Xu, X., Chang, C. C., Faber, G. S., Kingma, I., & Dennerlein, J. T. (2011), Human Factors, 53(4), 371–382.
Comparing polynomial and cubic spline interpolation of segment angles for estimating L5/S1 net moment during symmetric lifting tasks
Xu, X., Chang, C. C., Faber, G. S., Kingma, I., & Dennerlein, J. T. (2010), Journal of Biomechanics, 43(3), 583–586.
Interpolation of segment Euler angles can provide a robust estimation of segment angular trajectories during asymmetric lifting tasks
Xu, X., Chang, C. C., Faber, G. S., Kingma, I., & Dennerlein, J. T. (2010), Journal of Biomechanics, 43(10), 2043–2048.
Prediction accuracy in estimating joint angle trajectories using a video posture coding method for sagittal lifting tasks
Chang, C. C., McGorry, R. W., Lin, J. H., Xu, X., & Hsiang, S. M. (2010), Ergonomics, 53(8), 1039–1047.
An empirical validation of a base-excitation model to predict harvestable energy from a suspended-load backpack system
Xu, X., Hsiang, S., & Mirka, G. (2010), Theoretical Issues in Ergonomics Science, 11(6), 546–560.
The effects of a suspended-load backpack on gait
Xu, X., Hsiang, S. M., & Mirka, G. A. (2009), Gait & Posture, 29(1), 151–153.
Coordination indices between lifting kinematics and kinetics
Xu, X., Hsiang, S., & Mirka, G. (2008), International Journal of Industrial Ergonomics, 38(11-12), 1062–1066.
The effect of a knee support on the biomechanical response of the low back
Shu, Y., Jiang, Z., Xu, X., & Mirka, G. A. (2008), Journal of Applied Biomechanics, 23(4), 275–281.
The effect of a knee support on the biomechanical response of the low back
Shu, Y., Jiang, Z. L., Xu, X., & Mirka, G. A. (2007), Journal of Applied Biomechanics, 23(4), 275–281. https://doi.org/10.1123/jab.23.4.275
The effects of obesity on lifting performance
Xu, X., Mirka, G. A., & Hsiang, S. M. (2007), Applied Ergonomics, 39(1), 93–98.

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