title: Fat mass is a predictor of incident foot pain.
abstract: OBJECTIVE
  Foot pain is a common complaint in adults. Increased BMI and fat mass have been linked only to foot pain prevalence. Therefore, a longitudinal study to examine the relationship between body composition and incident foot pain over 3 years was conducted.
  
  
  METHODS
  Sixty-one community dwelling participants from a previous study of musculoskeletal health, who did not have foot pain at study inception in 2008, were invited to take part in this follow-up study in 2011. Current foot pain was determined using the Manchester Foot Pain and Disability Index, and body composition was measured using dual X-ray absorptiometry at study baseline.
  
  
  RESULTS
  Of the 51 respondents (84% response rate, 37 females and 14 males), there were 11 who developed foot pain. BMI ranged from underweight to morbidly obese (17-44 kg/m2), mean 27.0 ± 6.0 kg/m2. Incident foot pain was positively associated with both fat mass (odds ratio [OR] 1.11, 95% confidence interval [CI] 1.03-1.20) and fat-mass index (OR 1.28, 95% CI 1.04-1.57) in multivariate analysis.
  
  
  CONCLUSIONS
  Fat mass is a predictor of incident foot pain. This study supports the notion that incident foot pain in overweight individuals is associated with fat mass rather than body mass alone.
authors.affiliation: Department of Podiatry, La Trobe University, Bundoora, Victoria, Australia; Lower Extremity and Gait Studies Program, La Trobe University, Bundoora, Victoria, Australia.
authors.forename: P A
authors.initials: PA
authors.lastname: Butterworth
authors.forename: D M
authors.initials: DM
authors.lastname: Urquhart
authors.forename: F M
authors.initials: FM
authors.lastname: Cicuttini
authors.forename: H B
authors.initials: HB
authors.lastname: Menz
authors.forename: B J
authors.initials: BJ
authors.lastname: Strauss
authors.forename: J
authors.initials: J
authors.lastname: Proietto
authors.forename: J B
authors.initials: JB
authors.lastname: Dixon
authors.forename: G
authors.initials: G
authors.lastname: Jones
authors.forename: K B
authors.initials: KB
authors.lastname: Landorf
authors.forename: A E
authors.initials: AE
authors.lastname: Wluka
mesh_terms: D015502:Absorptiometry, Photon; D000273:Adipose Tissue; D000328:Adult; D001823:Body Composition; D015992:Body Mass Index; D005260:Female; D005528:Foot / Q000473:pathology*; D006801:Humans; D015994:Incidence; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D059352:Musculoskeletal Pain / Q000453:epidemiology / Q000209:etiology*; D009765:Obesity / Q000150:complications*; D016017:Odds Ratio