RT Journal Article
T1 Validity of Field Methods to Estimate Fat-Free Mass Changes Throughout the Season in Elite Youth Soccer Players
A1 Núñez Sánchez, Francisco Javier
A1 Munguía Izquierdo, Diego
A1 Suárez Moreno-Arrones, Luis Jesús
K1 DXA
K1 Body composition
K1 Indirect methods
K1 Sensitivity to change
K1 Team game
K1 CIRFD - Centro de Investigación en Rendimiento Físico y Deportivo
K1 CIRFD - RDDC
K1 CIRFD - CC
K1 CIRFD - VED
AB The aim of this study was to determine the most effective anthropometric equations or bioelectrical impedance analysis (BIA) devices for quantifying the sensitivity to change in fat-free mass (FFM) in elite young soccer players, in comparison with measurements using dual-energy X-ray absorptiometry (DXA), between the pre- and mid-season. A total of 40 elite youth soccer players participated in this study. DXA values provided a criterion measure of FFM. Correlation coefficients, biases, limits of agreement, and differences were used as measures of sensitivity to change. All body density, skinfold, and anthropometric equations and BIA devices used to obtain FFM data showed positive and very large correlations (r from 0.70 to 0.89) with DXA. A significant increase in FFM was shown between time points using DXA, BIA, and all anthropometric equations (p < 0.01). The magnitudes of differences were small for DXA, BIA inbody and all anthropometric equations except those of Faulkner (1966), Durnin and Rahaman (1967), Brook (1971), and Sarría et al. (1998). Six anthropometric equations [Faulkner (1966), Durnin and Womersley (1974), Carter (1982), Slaughter et al. (1988), Reilly et al. (2009), and Munguia-Izquierdo et al. (2018)] and BIA Tanita showed no statistical differences compared to DXA, with a low bias. We concluded that the equations developed by Durnin and Womersley (1974), Carter (1982), Slaughter et al. (1988), Reilly et al. (2009), and Munguia-Izquierdo et al. (2018) showed the best sensitivity in assessing FFM changes between pre- and mid-season in elite youth soccer players.
PB Frontiers Media
SN 1664-042X
YR 2020
FD 2020-02-12
LK http://hdl.handle.net/10433/8128
UL http://hdl.handle.net/10433/8128
LA en
NO Front Physiol. 2020 Feb 12;11:16
NO Universidad Pablo de Olavide de Sevilla. Departamento de Deporte e Informática
DS RIO
RD May 1, 2026