title: Inter-rater reliability of a video-analysis method measuring low-back load in a field situation.
abstract: Valid and reliable low-back load assessment tools that can be used in field situations are needed for epidemiologic studies and for ergonomic practice. The aim of this study was to assess the inter-rater reliability of a low-back load video-analysis method in a field setting. Five raters analyzed 50 work site manual material handling tasks of 14 workers. Peak and mean moments at the level of L5S1, and segment angles were obtained using the video-analysis method. Intra-class correlation coefficients (ICCs) and median standard deviations across raters were calculated. ICCs revealed excellent inter-rater reliability (>0.9) for peak and mean moments, ICCs of segment angles were variable. Median standard deviations showed relatively small inter-rater variance for moments (standard deviation <10 Nm) and segment angle variation ranging from 0° to 20°. The proposed video-analysis method, provides a reliable tool for obtaining low-back loads from occupational field tasks.
authors: MOVE Research Institute Amsterdam, Faculty of Human Movement Sciences, VU University Amsterdam, Van der Boechorststraat 9, 1081 BT Amsterdam, The Netherlands. p.coenen@vu.nl
authors: Pieter
authors: P
authors: Coenen
authors: Idsart
authors: I
authors: Kingma
authors: Cécile R L
authors: CR
authors: Boot
authors: Paulien M
authors: PM
authors: Bongers
authors: Jaap H
authors: JH
authors: van Dieën
mesh_terms: D001415:Back / Q000502:physiology; D001696:Biomechanical Phenomena; D015331:Cohort Studies; D004551:Elbow Joint / Q000502:physiology; D006804:Ergonomics; D006225:Hand / Q000502:physiology; D006801:Humans; D017770:Lifting; D009068:Movement; D011187:Posture / Q000502:physiology; D015203:Reproducibility of Results; D012785:Shoulder Joint / Q000502:physiology; D060726:Torso / Q000502:physiology; D014159:Transducers; D014741:Video Recording / Q000706:statistics & numerical data*; D016474:Weight-Bearing / Q000502:physiology*; D016526:Workload; D017132:Workplace; D055815:Young Adult