title: Insights into body composition adaptation: should we reconsider the use of Body Mass Index in some sports?
abstract: BACKGROUND
  The purposes of this study were to indentify the under/overweight/obese frequencies by Body Mass Index (BMI) and body fat percentage (BF%) in athletes within groups of sport and to investigate the accuracy of the BMI as a measure of BF%.
  
  
  METHODS
  Cross-sectional design study on elite male athletes (N.=2234, aged 22±4 years) from 51 sports disciplines who were classified according to two different sport classifications: predominant characteristic of training (four group model) and type and intensity of exercise (nine group model). All athletes underwent full anthropometric testing.
  
  
  RESULTS
  After stratification, the majority of athletes were in normal weight category. According to 4 group model, BMI is showed as statistically significant, reliable and independent predictor of BF% in all groups of sports. In nine groups model all correlated parameters were positive for athletes being statistically significant (P<0.001) with exception of group LSMD, MSMD and HSMD (P>0.05). The highest positive correlation between BMI and BF% was in group MSLD (r=0.53; P<0.001) and in power sports group (r=0.24; P<0.001).
  
  
  CONCLUSIONS
  BMI could be an accurate predictor of BF% in athletes but that depends on group of sport. Our results suggest the BMI could use only in power and MSLD groups of sport.
authors.affiliation: Institute of Forensic Medicine, Belgrade, Serbia - tijana.durmic@mfub.bg.ac.rs.
authors.forename: Tijana
authors.initials: T
authors.lastname: Durmić
authors.forename: Marina
authors.initials: M
authors.lastname: Djelić
authors.forename: Jelena
authors.initials: J
authors.lastname: Suzić Lazić
authors.forename: Biljana
authors.initials: B
authors.lastname: Lazović Popović
authors.forename: Milica
authors.initials: M
authors.lastname: Dekleva
authors.forename: Ivan
authors.initials: I
authors.lastname: Soldatovic
authors.forename: Sanja
authors.initials: S
authors.lastname: Mazić
mesh_terms: D000064:Acclimatization; D000222:Adaptation, Physiological / Q000502:physiology*; D000328:Adult; D000886:Anthropometry; D056352:Athletes; D001823:Body Composition / Q000502:physiology*; D015992:Body Mass Index; D003430:Cross-Sectional Studies; D006801:Humans; D008297:Male; D009765:Obesity; D013177:Sports; D055815:Young Adult