title: Activity characteristics and movement patterns in people with and people without low back pain who participate in rotation-related sports.
abstract: Many risk factors have been identified as contributing to the development or persistence of low back pain (LBP). However, the juxtaposition of both high and low levels of physical activity being associated with LBP reflects the complexity of the relationship between a risk factor and LBP. Moreover, not everyone with an identified risk factor, such as a movement pattern of increased lumbopelvic rotation, has LBP.
  
  
  OBJECTIVE
  The purpose of this study was to examine differences in activity level and movement patterns between people with and people without chronic or recurrent LBP who participate in rotation-related sports. Design Case: Case-control study.
  
  
  METHODS
  University laboratory environment.
  
  
  METHODS
  52 people with chronic or recurrent LBP and 25 people without LBP who all play a rotation-related sport.
  
  
  METHODS
  PARTICIPANTS completed self-report measures including the Baecke Habitual Activity Questionnaire and a questionnaire on rotation-related sports. A 3-dimensional motion-capture system was used to collect movement-pattern variables during 2 lower-limb-movement tests.
  
  
  RESULTS
  Compared with people without LBP, people with LBP reported a greater difference between the sport subscore and an average work and leisure composite subscore on the Baecke Habitual Activity Questionnaire (F = 6.55, P = .01). There were no differences between groups in either rotation-related-sport participation or movement-pattern variables demonstrated during 2 lower-limb-movement tests (P > .05 for all comparisons).
  
  
  CONCLUSIONS
  People with and people without LBP who regularly play a rotation-related sport differed in the amount and nature of activity participation but not in movement-pattern variables. An imbalance between level of activity during sport and daily functions may contribute to the development or persistence of LBP in people who play a rotation-related sport.
authors.affiliation: School of Nursing, University of Rochester, Rochester, NY, USA.
authors.forename: Ruth L
authors.initials: RL
authors.lastname: Chimenti
authors.forename: Sara A
authors.initials: SA
authors.lastname: Scholtes
authors.forename: Linda R
authors.initials: LR
authors.lastname: Van Dillen
mesh_terms: D000203:Activities of Daily Living; D000328:Adult; D016022:Case-Control Studies; D004185:Disability Evaluation; D015444:Exercise / Q000502:physiology*; D005260:Female; D006801:Humans; D017116:Low Back Pain / Q000503:physiopathology*; D008297:Male; D016059:Range of Motion, Articular / Q000502:physiology*; D012307:Risk Factors; D012399:Rotation; D013177:Sports / Q000502:physiology*; D011795:Surveys and Questionnaires; D055815:Young Adult