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Static and dynamic back strength of underground coal miners.

Authors
Gallagher-S
Source
Advances in Industrial Ergonomics and Safety I. Mital A, ed., Philadelphia PA: Taylor and Francis, 1989 Jan; 1:531-536
Link
NIOSHTIC No.
10007067
Abstract
Twenty-two underground coal miners performed back strength exertions using an isokinetic dynamometer. Static exertions were performed in two postures (standing or kneeling) and three angles of trunk flexion. Dynamic tests were performed in the same postures and at three isokinetic velocities. Results of the static back strength anova indicated that posture and angle of trunk flexion both significantly affected peak torque (p<0.001). Posture and velocity also affected dynamic torque production (p<0.001). Results of this U.S. Bureau of Mines study indicate that back strength is significantly reduced when a kneeling posture is used.
Keywords
Underground-miners; Underground-mining; Coal-miners; Coal-mining; Miners; Mining-industry; Posture; Repetitive-work; Manual-lifting; Muscle-function; Musculoskeletal-system
Publication Date
19890101
Document Type
Conference/Symposia Proceedings
Editors
Mital-A
Fiscal Year
1989
NTIS Accession No.
NTIS Price
ISBN No.
0850664934
Identifying No.
OP-130-89
NIOSH Division
PRC
Source Name
Advances in Industrial Ergonomics and Safety I. Proceedings of the Annual International Industrial Ergonomics and Safety Conference held in Cincinnati, Ohio, U.S.A., 5-9 June 1989. The Official Conference of the International Foundation for Industrial Ergonomics and Safety Research
State
PA
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