title: Comparing DXA and Air Displacement Plethysmography to Assess Body Composition of Male Collegiate Hockey Players.
abstract: Delisle-Houde, P, Reid, RER, Insogna, JA, Prokop, NW, Buchan, TA, Fontaine, SL, and Andersen, RE. Comparing DXA and air-displacement-plethysmography to assess body composition of male collegiate hockey players. J Strength Cond Res 33(2): 474-478, 2019-Accurate assessment of body composition is an important consideration for athletes because it is a health/performance variable. However, little is known about the variability in values obtained across different assessment methods for specific athlete populations. The purpose of this study was to compare 2 common laboratory methods that assess body composition: air displacement plethysmography (BOD POD) and dual energy x-ray absorptiometry (DXA). Twenty-nine male collegiate hockey players, (Age = 24.07 ± 1.49, BMI = 26.5 ± 2.74) participated in this study. All participants underwent back-to-back BOD POD and DXA evaluations. Paired t-tests and Bland-Altman analyses were performed to compare differences in fat mass, fat percentage, and fat-free mass between methods. Average fat percentage reported by the DXA and BOD POD was 15.34 ± 3.53 and 11.66 ± 4.82 respectively, resulting in a bias score of 3.78 ± 2.33 kg (t(28) = 8.71, p ≤ 0.001). Average fat mass reported by the DXA and BOD POD was 13.42 ± 3.59 and 10.15 ± 4.54 kg respectively, resulting in a bias score of 3.27 ± 1.92 kg (t(28) = 9.18, p ≤ 0.001). Average fat-free mass reported by the DXA and BOD POD was 73.31 ± 5.30 and 76.25 ± 5.74 kg respectively, resulting in a bias score of -2.93 ± 2.06 kg (t(28) = -7.66, p ≤ 0.001). Our findings can help make more insightful comparisons between studies that use different body composition methodologies among athletic populations.
authors.affiliation: Health and Fitness Promotion Laboratory, Department of Kinesiology and Physical Education, McGill University, Montreal, Québec, Canada.
authors.forename: Patrick
authors.initials: P
authors.lastname: Delisle-Houde
authors.forename: Ryan E R
authors.initials: RER
authors.lastname: Reid
authors.forename: Jessica A
authors.initials: JA
authors.lastname: Insogna
authors.forename: Neal W
authors.initials: NW
authors.lastname: Prokop
authors.forename: Tayler A
authors.initials: TA
authors.lastname: Buchan
authors.forename: Shawn L
authors.initials: SL
authors.lastname: Fontaine
authors.forename: Ross E
authors.initials: RE
authors.lastname: Andersen
mesh_terms: D015502:Absorptiometry, Photon / Q000379:methods / Q000592:standards*; D000273:Adipose Tissue; D000328:Adult; D056352:Athletes; D001823:Body Composition; D003430:Cross-Sectional Studies; D006688:Hockey / Q000502:physiology*; D006801:Humans; D008297:Male; D010991:Plethysmography / Q000379:methods / Q000592:standards*; D015203:Reproducibility of Results; D014495:Universities; D055815:Young Adult