Agreement between standard body composition methods to estimate percentage of body fat in young male athletes

Ferri-Morales, A. ; Nascimento-Ferreira, M.V. ; Ubago-Guisado, E. ; De Moraes, A.C.F. ; Vlachopoulos, D. ; Torres-Costoso, A. ; Barker, A.R. ; Moreno, L.A. (Universidad de Zaragoza) ; Martínez-Vizcaino, V. ; Gracia-Marco, L.

Resumen: Purpose: To examine the intermethods agreement of dual-energy X-ray absorptiometry (DXA) and foot-to-foot bioelectrical impedance analysis (BIA) to assess the percentage of body fat (%BF) in young male athletes using air-displacement plethysmography (ADP) as the reference method.
Methods: Standard measurement protocols were carried out in 104 athletes (40 swimmers, 37 footballers, and 27 cyclists, aged 12–14 y).
Results: Age-adjusted %BF ADP and %BF BIA were significantly higher in swimmers than footballers. ADP correlates better with DXA than with BIA (r = .84 vs r = .60, P < .001). %BF was lower when measured by DXA and BIA than ADP (P < .001), and the bias was higher when comparing ADP versus BIA than ADP versus DXA. The intraclass correlation coefficients between DXA and ADP showed a good to excellent agreement (r = .67–.79), though it was poor when BIA was compared with ADP (r = .26–.49). The ranges of agreement were wider when comparing BIA with ADP than DXA with ADP.
Conclusion: DXA and BIA seem to underestimate %BF in young male athletes compared with ADP. Furthermore, the bias significantly increases with %BF in the BIA measurements. At the individual level, BIA and DXA do not seem to predict % BF precisely compared with ADP in young athletic populations.

Idioma: Inglés

DOI: 10.1123/pes.2017-0171

Año: 2018

Publicado en: PEDIATRIC EXERCISE SCIENCE 30, 3 (2018), 402-410
ISSN: 0899-8493

Factor impacto JCR: 1.707 (2018)

Categ. JCR: PEDIATRICS rank: 62 / 124 = 0.5 (2018) - Q2 - T2
Categ. JCR: SPORT SCIENCES rank: 54 / 83 = 0.651 (2018) - Q3 - T2
Categ. JCR: PHYSIOLOGY rank: 63 / 81 = 0.778 (2018) - Q4 - T3

Factor impacto SCIMAGO: 0.791 - Orthopedics and Sports Medicine (Q2) - Sports Science (Q2) - Physical Therapy, Sports Therapy and Rehabilitation (Q2) - Pediatrics, Perinatology and Child Health (Q2)

Financiación: info:eu-repo/grantAgreement/EC/FP7/618496/EU/Effect of a program of short bouts of exercise on bone health in adolescents involved in different sports/PRO-BONE

Tipo y forma: Article (PostPrint)

Área (Departamento): Área Enfermería (Dpto. Fisiatría y Enfermería)