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Shin, GwanSeob
Ergonomics Lab
Research Interests
  • Biomechanics, Ergonomics, Occupational safety

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The effect of a repetitive, fatiguing lifting task on horizontal ground reaction forces

Cited 2 times inthomson ciCited 3 times inthomson ci
Title
The effect of a repetitive, fatiguing lifting task on horizontal ground reaction forces
Author
Shu, YDrum, JSouthard, SShin, GwanSeobMirka, GA
Issue Date
2005-08
Publisher
HUMAN KINETICS PUBL INC
Citation
JOURNAL OF APPLIED BIOMECHANICS, v.21, no.3, pp.260 - 270
Abstract
There are many outdoor work environments that involve the combination of repetitive, fatiguing lifting tasks and less-than-optimal footing (muddy/slippery ground surfaces). The focus of the current research was to evaluate the effects of lifting-induced fatigue of the low back extensors on lifting kinematics and ground reaction forces. Ten participants performed a repetitive lifting task over a period of 8 minutes. As they performed this task, the ground reaction forces and whole body kinematics were captured using a force platform and magnetic motion tracking system, respectively. Fatigue was verified in this experiment by documenting a decrease in the median frequency of the bilateral erector spinae muscles (pretest-posttest). Results indicate significant (p < 0.05) increases in the magnitude of the peak anterior/posterior (increased by an average of 18.3%) and peak lateral shear forces (increased by an average of 24.3%) with increasing time into the lifting bout. These results have implications for work environments such as agriculture and construction, where poor footing conditions and requirements for considerable manual materials handling may interact to create an occupational scenario with an exceptionally high risk of a slip and fall.
URI
https://scholarworks.unist.ac.kr/handle/201301/5892
URL
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=24944569975
ISSN
1065-8483
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BME_Journal Papers
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