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THREE-DIMENSIONAL MULTI-SEGMENTED SPINE JOINT REACTION FORCES DURING COMMON WORKPLACE PHYSICAL DEMANDS/ACTIVITIES OF DAILY LIVING

Overview
Publisher World Scientific
Date 2019 Mar 2
PMID 30820137
Citations 1
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Abstract

Objective: The quantification of inter-segmental spine joint reaction forces during common workplace physical demands.

Background: Many spine reaction force models have focused on the L5/S1 or L4/L5 joints to quantify the vertebral joint reaction forces. However, the L5/S1 or L4/L5 approach neglects most of the intervertebral joints.

Methods: The current study presents a clinically applicable and noninvasive model which calculates the spinal joint reaction forces at six different regions of the spine. Subjects completed four ambulatory activities of daily living: level walking, obstacle crossing, stair ascent, and stair descent.

Results: Peak joint spinal reaction forces were compared between tasks and spine regions. Differences existed in the bodyweight normalized vertical joint reaction forces where the walking (8.05±3.19N/kg) task had significantly smaller peak reaction forces than the stair descent (12.12±1.32N/kg) agreeing with lower extremity data comparing walking and stair descent tasks.

Conclusion: This method appears to be effective in estimating the joint reaction forces using a segmental spine model. The results suggesting the main effect of peak reactions forces in the segmental spine can be influenced by task.

Citing Articles

Multibody Models of the Thoracolumbar Spine: A Review on Applications, Limitations, and Challenges.

Lerchl T, Nispel K, Baum T, Bodden J, Senner V, Kirschke J Bioengineering (Basel). 2023; 10(2).

PMID: 36829696 PMC: 9952620. DOI: 10.3390/bioengineering10020202.

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