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spine-pelvic coordination measured by lumbar action meter (LAM)

Title
spine-pelvic coordination measured by lumbar action meter (LAM)
Author
김정룡
Keywords
lumbar action meter (LAM); spine-pelvis coordination; symmetric lifting
Issue Date
2008-06
Publisher
일본인간공학회
Citation
THE JAPANESE JOURNAL OF ERGONOMICS, v. 44, Page. 380-384
Abstract
the spine-pelvic coodination was monitored to find the different pattern when subjects lift different weight. six healthy subjects participated in the experiment.the free dynamic stooped lifting and lowering was monitored by using lumbar action meter(LAM) developed in Ergomechanics laboratory. LAM is a device with two pieces of portable and wireless parts using tilt and gyro sensors. the top piece was placed on the T12 and the bottom piece was placed on the S1 area. each subject was requested to perform lowering and lifting three different weights in sagittal plane. Angle-angle plot was drawn to show the spine-pelvic pattern. the velocity and acceleration of the spine and pelvis were also examined to find the different coordination pattern as the weight increassed. In results, the spine contribution decreased as the weight increased. However, this pattern varied depending on the temporal phase of lifting. The decrease of the spine contribution was also shown in velocity and acceleration as the weight increased. the spine/pelvis (S/P) ratio showed different coordination patterns in various lifting phases. The application of LAM could be expanded to examine the more complex trunk motion in workplace such as combination of symmetric and asymmetric lifting.
URI
https://www.jstage.jst.go.jp/article/jje1965/44/Supplement/44_Supplement_380/_articlehttp://repository.hanyang.ac.kr/handle/20.500.11754/80441
ISSN
0549-4974
DOI
10.5100/jje.44.Supplement_380
Appears in Collections:
COLLEGE OF COMPUTING[E] > MEDIA, CULTURE, AND DESIGN TECHNOLOGY(ICT융합학부) > Articles
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