title: Does body mass index increase the risk of low back pain in a population exposed to whole body vibration?
abstract: The aim of this study was to determine whether body mass index (BMI) influences the risk of low back pain (LBP) in a population exposed to whole body vibration (WBV). For this a self-administered questionnaire was sent to 467 participants, driving occupational vehicles. Vibration measurements were performed according to ISO 2631-1 on a representative sample (n=30) of this population. For each participant, we calculated the current root mean square (r.m.s.) over an 8 h (A(8)) working day. The questionnaire response rate was 47% (n=221). We did not find a significant correlation between BMI and the onset of LBP in the last 7 days (r=0.07, p=0.34) nor for LBP in past 12 months (r=-0.30, p=0.63). No significant increased risk was found for the onset of LBP with the increase of BMI, neither for the last 7 days (OR 1.02; 95% CI: 0.93-1.23) nor for the past 12 months LBP (OR 0.98; 95% CI: 0.89-1.09). Introducing the interaction with WBV exposure in the logistic regression model, did not result a significant increased risk in the onset of LBP-7 days (OR 0.97; 95% CI: 0.92-1.01) nor in the onset of LBP 12 months (OR 0.97; 95% CI: 0.93-1.01) either. Occupational participants exposed to WBV, with a high BMI do not have an increased risk for the development of LBP.
authors.affiliation: Coronel Institute of Occupational Health, Academic Medical Center, Universiteit van Amsterdam, Research Institute AmCOGG, P.O. Box 22700, 1100 DE Amsterdam, The Netherlands.
authors.forename: Daniëlle
authors.initials: D
authors.lastname: Noorloos
authors.forename: Linda
authors.initials: L
authors.lastname: Tersteeg
authors.forename: Ivo J H
authors.initials: IJ
authors.lastname: Tiemessen
authors.forename: Carel T J
authors.initials: CT
authors.lastname: Hulshof
authors.forename: Monique H W
authors.initials: MH
authors.lastname: Frings-Dresen
mesh_terms: D015992:Body Mass Index; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D017116:Low Back Pain / Q000209:etiology* / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D018986:Motor Vehicles; D011446:Prospective Studies; D012307:Risk Factors; D011795:Surveys and Questionnaires; D014732:Vibration / Q000009:adverse effects*