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Rotator cuff syndrome: personal, work-related psychosocial and physical load factors.

Authors
Silverstein-BA; Bao-SS; Fan-ZJ; Howard-N; Smith-C; Spielholz-P; Bonauto-D; Viikari-Juntura-E
Source
J Occup Environ Med 2008 Sep; 50(9):1062-1076
NIOSHTIC No.
20035169
Abstract
OBJECTIVE: To identify factors associated with rotator cuff syndrome (RCS) among active workers. METHODS: Seven hundred thirty-three workers in 12 worksites participated in a cross-sectional study with individual structured physical and psychosocial health interviews, physical examinations, and exposure assessments of biomechanical factors. Work organization, including job content or structural constraints, was assessed at the departmental level. Multivariable logistic modeling was used. RESULTS: Fifty-five subjects (7.5%) had RCS. Cases were more likely to report low job security (P < 0.04) and to have very high job structural constraints (P < 0.03). Age and body mass index were marginally significant. Upper arm flexion >or= 45 degrees >or= 15% of time and either duty cycle of forceful exertions >or=9% time (odds ratio = 2.43, 95% CI = 1.04 to 5.68) or forceful pinch >0% [odds ratio = 2.66, 95% CI = 1.26 to 5.59] were significant risk factors. CONCLUSIONS: Long duration of shoulder flexion and forceful exertion (especially pinch) in a job are significant risk factors for RCS. Work organization may impact physical and psychosocial exposures and should be further explored.
Keywords
Biomechanics; Injuries; Injury-prevention; Musculoskeletal-system-disorders; Mathematical-models; Psychological-factors; Posture; Risk-analysis; Sociological-factors; Skeletal-system-disorders
Contact
Dr Barbara Silverstein, MSN, PhD, MPH, Safety and Health Assessment and Research for Prevention (SHARP), Washington State Department of Labor and Industries, PO Box 44330, Olympia, WA 98504-4330
CODEN
JOEMFM
Publication Date
20080901
Document Type
Journal Article
Email Address
silb235@lni.wa.gov
Funding Amount
289069
Funding Type
Cooperative Agreement
Fiscal Year
2008
NTIS Accession No.
NTIS Price
Identifying No.
Cooperative-Agreement-Number-U01-OH-007316
Issue of Publication
9
ISSN
1076-2752
Priority Area
Disease and Injury: Musculoskeletal Disorders of the Upper Extremities
Source Name
Journal of Occupational and Environmental Medicine
State
WA
Performing Organization
Washington State Department of Labor and Industries
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