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Exposure assessment of biomechanical stress in repetitive manual work using spectral analysis.

Authors
Radwin-RG; Lin-L; Yen-TY
Source
Proceedings of the Human Factors and Ergonomics Society 37th Annual Meeting, October 11-15, 1993, Seattle, Washington, Designing for Diversity. Santa Monica, CA: Human Factors and Ergonomics Society, 1993 Oct; 37(Ind Erg):669-673
NIOSHTIC No.
00219261
Abstract
A method for quantitative exposure assessment of physical stress associated with repetitive manual work was developed. A frequency domain approach was used for averaging data from cyclical work elements to reduce biomechanical data. Low force repetitive wrist flexion was used as an example of the feasibility for implementing this approach. Signals from sensors attached to the upper extremities were digitized, coded and recorded onto the audio tracks of video tape in synchronization with video images of the subject. Data reduction, data management and exposure analysis were conducted using computer interactive video tape analysis. Using this method, an experiment was conducted on the effects of repetition rate and repetitive motion on subjective discomfort. Mean discomfort ratings were averaged over five subjects for all experimental conditions of wrist flexion angle and pace. The authors conclude that this approach may allow frequency weighted filters to be developed based on human response to stress at different frequencies.
Keywords
NIOSH-Grant; Musculoskeletal-system-disorders; Ergonomics; Humans; Repetitive-work; Cumulative-trauma; Physical-stress; Biomechanics; Human-factors-engineering
Contact
Industrial Engineering Univ of Wisconsin-Madison 1513 University Ave Madison, WI 53706
CODEN
PHFSDQ
Publication Date
19930101
Document Type
Conference/Symposia Proceedings
Funding Amount
160578
Funding Type
Grant;
Fiscal Year
1993
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-K01-OH-00107
Issue of Publication
Ind Erg
ISSN
1071-1813
Priority Area
Musculoskeletal-system-disorders
Source Name
Proceedings of the Human Factors and Ergonomics Society 37th Annual Meeting, October 11-15, 1993, Seattle, Washington, Designing for Diversity
State
CA; WA; WI
Performing Organization
University of Wisconsin Madison, Madison, Wisconsin
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