title: Comparisons of ergonomic evaluation tools (ALLA, RULA, REBA and OWAS) for farm work.
abstract: BACKGROUND
  The purpose of this study was to validate the agricultural lower limb assessment (ALLA) ergonomic checklist, which was developed for various agricultural tasks in Korea.
  
  
  METHODS
  One hundred and ninety-six working postures were selected from the real agricultural tasks to verify ALLA, a lower limb body posture assessment tool, and then evaluated by 16 ergonomic experts. Hit rate, quadratic weighted κ, one-way analysis of variance and t-test analyses were applied to compare ALLA with other assessment tools.
  
  
  RESULTS
  ALLA analysis had a superior hit rate with ergonomic expert assessment compared with other assessment tools. Quadratic weighted κ analysis also showed that ALLA provided superior estimates of risk levels for farm working postures.
  
  
  CONCLUSIONS
  ALLA would be an appropriate assessment tool to estimate risk factors for various lower limb body postures which frequently occur in agricultural tasks in Korea. ALLA is a simple and accurate risk assessment tool that could be usefully applied to identify and mitigate risk factors and work-related musculoskeletal disorders in agricultural tasks, and also to evaluate the effects of control and intervention for working conditions.
authors.affiliation: a Department of Industrial Engineering , Sungkyunkwan University , Republic of Korea.
authors.forename: Yong-Ku
authors.initials: YK
authors.lastname: Kong
authors.affiliation: a Department of Industrial Engineering , Sungkyunkwan University , Republic of Korea.
authors.forename: Sung-Yong
authors.initials: SY
authors.lastname: Lee
authors.affiliation: b Rural Resources Development Institute , NIAST, RDA , Republic of Korea.
authors.forename: Kyung-Suk
authors.initials: KS
authors.lastname: Lee
authors.affiliation: c Division of Mechatronics Engineering , Dongseo University , Republic of Korea.
authors.forename: Dae-Min
authors.initials: DM
authors.lastname: Kim
mesh_terms: D057189:Checklist; D006804:Ergonomics / Q000379:methods*; D000067565:Farmers; D035002:Lower Extremity; D011187:Posture; D056910:Republic of Korea; D018570:Risk Assessment / Q000379:methods
keywords: Ovako working posture analysis system; agricultural lower limb assessment; ergonomic risk assessment tools; rapid entire body assessment; rapid upper limb assessment