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The strain index and TLV for HAL: risk of lateral epicondylitis in a prospective cohort.
Garg-A; Kapellusch-JM; Hegmann-KT; Thiese-MS; Merryweather-AS; Wang-Y-C; Malloy-EJ
Am J Ind Med 2014 Mar; 57(3):286-302
Background: This study's objective was to quantify exposure-response relationships between job physical exposure (JPE) and incidence of lateral epicondylitis (LE). Methods: A cohort of 536 workers was enrolled from 10 manufacturing facilities and followed monthly for 6 years to ascertain changes in JPE and health status. JPE was individually measured and quantified using the Strain Index (SI) and TLV for HAL. Worker demographics, medical history, psychosocial factors, and current musculoskeletal disorders were obtained. Results Fifty-six workers developed LE. In multivariate models JPE, age, family problems, and swimming were associated with increased risk of LE. SI showed an exposure-response relationship with maximum hazard ratio (HR) of 4.5(P¼0.04). TLV for HAL showed a non-statistically significant trend for increased risk of LE (P¼0.19). Conclusion JPE is associated with increased risk of LE. The SI and TLV for HAL are useful metrics for estimating JPE.
Ergonomics; Musculoskeletal-system-disorders; Muscle-function; Skeletal-movement; Epidemiology; Job-analysis; Physiological-factors; Physiological-response; Employee-exposure; Threshold-limit-values; Hand-protection; Motion-studies; Force; Author Keywords: epidemiology; ergonomics; prospective cohort; lateral epicondylitis; Strain Index; TLV for HAL
Arun Garg, PhD, CPE, Department of Occupational Science & Technology, University of Wisconsin-Milwaukee, P.O.Box 413, Milwaukee, WI 53201
Cooperative Agreement; Grant
Cooperative-Agreement-Number-U01-OH-007917; Grant-Number-T42-CCT-810426; M122013
Issue of Publication
American Journal of Industrial Medicine
WI; UT; DC
University of Wisconsin
Page last reviewed: May 5, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division