title: Reliability and agreement of 5 Ergo-Kit functional capacity evaluation lifting tests in subjects with low back pain.
abstract: OBJECTIVE
  To assess interrater reliability and agreement of 5 Ergo-Kit functional capacity evaluation lifting tests in subjects with low back pain (LBP).
  
  
  METHODS
  Within-subjects design, with 2 repeated measurements.
  
  
  METHODS
  Academic medical center in The Netherlands.
  
  
  METHODS
  Twenty-four subjects (10 men, 14 women) with LBP.
  
  
  METHODS
  Not applicable.
  
  
  METHODS
  Five Ergo-Kit lifting tests (2 isometric, 3 dynamic) were assessed on 2 occasions (t1, t2), by 2 different raters (R1, R2). The interval between the test sessions was 3 days. Interrater reliability level was expressed with the intraclass correlation coefficient (ICC), and the level of agreement between raters with the standard error (SE) of measurement.
  
  
  RESULTS
  ICCs means (reliability) of isometric and dynamic Ergo-Kit lifting tests ranged from .94 to .97, and SE of measurement values (agreement) ranged from 1.9 to 8.6 kg.
  
  
  CONCLUSIONS
  There was good reliability and agreement between raters of the isometric and dynamic Ergo-Kit lifting tests in subjects with LBP, which supports the use of these tests to assess functional lifting capacity.
authors.affiliation: Coronel Institute of Occupational Health, Academic Medical Center, Universiteit van Amsterdam, Amsterdam, The Netherlands. v.gouttebarge@amc.uva.nl
authors.forename: Vincent
authors.initials: V
authors.lastname: Gouttebarge
authors.forename: Haije
authors.initials: H
authors.lastname: Wind
authors.forename: P Paul
authors.initials: PP
authors.lastname: Kuijer
authors.forename: Judith K
authors.initials: JK
authors.lastname: Sluiter
authors.forename: Monique H
authors.initials: MH
authors.lastname: Frings-Dresen
mesh_terms: D000328:Adult; D004185:Disability Evaluation; D005260:Female; D006785:Hospitals, University; D006801:Humans; D017770:Lifting; D017116:Low Back Pain / Q000175:diagnosis*; D008297:Male; D008875:Middle Aged; D015588:Observer Variation; D015203:Reproducibility of Results