TY - GEN
T1 - Lumbar facet joint kinematics and load effects during dynamic lifting
AU - Chowdhury, Suman K.
AU - Byrne, Ryan M.
AU - Zhou, Yu
AU - Aiyangar, Ameet
AU - Zhang, Xudong
PY - 2017
Y1 - 2017
N2 - Although extensive efforts have been dedicated to investigating the risk factors of low back pain in the workplace, a clear knowledge of their effects on the facet joint (FJ) mechanics is lacking. In this study, fourteen healthy participants performed dynamic lifting task with varying external load while a dynamic stereo-radiography system captured their lumbar motion continuously. The FJ kinematics in the lumbar spine were ascertained using a volumetric model-based tracking method. The FJ kinematics data from seven participants were processed and analyzed using non-parametric statistical test. The results indicated significant (p<0.05) effects of external load on the FJ flexion and superior-inferior translation at all segments, showing more consistent trends at the L2-L3, L3-L4, and L4-L5 joints during trunk flexion angles of approximately 20° and 40°. Findings of this study provide a preliminary but important foundation in elucidating facet-related injury mechanism due to strenuous exertions in workplaces.
AB - Although extensive efforts have been dedicated to investigating the risk factors of low back pain in the workplace, a clear knowledge of their effects on the facet joint (FJ) mechanics is lacking. In this study, fourteen healthy participants performed dynamic lifting task with varying external load while a dynamic stereo-radiography system captured their lumbar motion continuously. The FJ kinematics in the lumbar spine were ascertained using a volumetric model-based tracking method. The FJ kinematics data from seven participants were processed and analyzed using non-parametric statistical test. The results indicated significant (p<0.05) effects of external load on the FJ flexion and superior-inferior translation at all segments, showing more consistent trends at the L2-L3, L3-L4, and L4-L5 joints during trunk flexion angles of approximately 20° and 40°. Findings of this study provide a preliminary but important foundation in elucidating facet-related injury mechanism due to strenuous exertions in workplaces.
UR - http://www.scopus.com/inward/record.url?scp=85042508058&partnerID=8YFLogxK
U2 - 10.1177/1541931213601726
DO - 10.1177/1541931213601726
M3 - Conference contribution
AN - SCOPUS:85042508058
T3 - Proceedings of the Human Factors and Ergonomics Society
SP - 976
EP - 980
BT - Proceedings of the Human Factors and Ergonomics Society 2017 International Annual Meeting, HFES 2017
PB - Human Factors an Ergonomics Society Inc.
T2 - Human Factors and Ergonomics Society 2017 International Annual Meeting, HFES 2017
Y2 - 9 October 2017 through 13 October 2017
ER -