Fat-free mass in adolescent athletes: Accuracy of bioimpedance equations and identification of new predictive equations

Koury, Josely Correa; Ribeiro, Maria Almeida; Massarani, Fábia Albernaz; Vieira, Filomena; Marini, Elisabetta

doi:10.1016/j.nut.2018.09.029

Cited by 22 publications

(29 citation statements)

References 41 publications

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“…Previous studies have shown that vector length reduction is associated with growth in children, a trend that is accentuated with sexual maturation, as demonstrated by the bioelectrical differences among adolescents of similar age but different maturity status [33,[36][37][38][39]. The results of this study suggest that the maturational development in elite athletes influences FFM and TBW, but not FM%.…”

Section: Discussionsupporting

confidence: 54%

Maturity Related Differences in Body Composition Assessed by Classic and Specific Bioimpedance Vector Analysis among Male Elite Youth Soccer Players

Toselli

Marini

Latessa

et al. 2020

IJERPH

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The aim of this study was to analyze the efficiency of classic and specific bioelectrical impedance vector analysis (BIVA) in the assessment of maturity related differences in body composition among male elite youth soccer players, and to provide bioelectrical impedance reference data for this category. A group of 178 players (aged 12.1 ± 1.6 years) were registered in a professional Italian soccer team participating in the first division (Serie A). They were divided into three groups according to their maturity status while bioelectrical resistance and reactance were obtained. The classic and specific BIVA procedures were applied, which correct bioelectrical values for body height and body geometry, respectively. Percentage of fat mass (FM%) and total body water (TBW (L)) were estimated from bioelectrical values. Age-specific z-scores of the predicted age at peak height velocity identified 29 players as earlier-, 126 as on time-, and 23 as later-maturing. TBW was higher (p < 0.01) in adolescents classified as “early” maturity status compared to the other two groups and classic BIVA confirmed these results. Conversely, no differences in FM% were found among the groups. Specific vector length showed a higher correlation (r = 0.748) with FM% compared with the classic approach (r = 0.493). Classic vector length showed a stronger association (r = −0.955) with TBW compared with specific (r = −0.263). Specific BIVA turns out to be accurate for the analysis of FM% in athletes, while classic BIVA shows to be a valid approach to evaluate TBW. An original data set of bioelectric impedance reference values of male elite youth soccer players was provided.

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Section: Discussionsupporting

confidence: 54%

Maturity Related Differences in Body Composition Assessed by Classic and Specific Bioimpedance Vector Analysis among Male Elite Youth Soccer Players

Toselli

Marini

Latessa

et al. 2020

IJERPH

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“…The authors confirmed that the bioimpedance method has high informative significance and reliability. Koury et al [21] confirmed the correlation between biological maturity and body composition of young athletes, which was estimated using the bioimpedance method. The comparative analysis of the body composition dynamics of athletes and non-athletes was performed by Ramon Alvero-Cruz et al [22].…”

Section: Introductionmentioning

confidence: 92%

Analysis of grip strength and somatotype features of armwrestling athletes of different skill levels

Podrihalo

Podrіgalo

Bezkorovainyi

et al. 2020

PES

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“…It is also generally suggested that the earlier biological maturation is correlated with a higher subsequent body mass index (BMI; Laitinen, Power, & Järvelin, 2001;Parsons, Power, Logan, & Summerbell, 1999;Pierce, Kuh, & Hardy, 2012;Pierce & Leon, 2005). Due to its close association with the growth process menarche status is considered more informative than anagraphic age about the body composition changes and biological development in adolescent girls (Buffa, Floris, & Marini, 2002;Buffa, Floris, Marini, & Ortu, 2003;Koury, Ribeiro, Massarani, Vieira, & Marini, 2019).…”

Section: Introductionmentioning

confidence: 99%

The relationship among the age at menarche, anthropometric characteristics, and socio‐economic factors in Bengali girls from Kolkata, India

Żegleń

Marini

Cabras

et al. 2019

American J Hum Biol

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The aim of the study was to measure the causal effect of selected socio-economic factors and anthropometrical characteristics on the menarche occurrence. Methods:The sample consisted of 2195 Bengali girls (aged 7-21) from middleclass families, from Kolkata city, India. The age at menarche was recorded from the retrospective data and status quo method. The causal effect of anthropometric and socio-economic variables on menarche occurrence was estimated by the nonparametrical analysis of survival probability (survival random forest).Results: In the examined cohort menarche occurred, on average, at 11.8 years of age. The probability of menarche occurrence amplified with the increasing values of factors such as body mass index, height-for-age z-scores, number of family members, household rooms, and toilets, but decreased when expenditures increased. The relation maintained a similar pattern of causal effect with girls' age.Conclusions: A complex pattern of relationship among sexual development, physique, and socio-economic characteristics was defined. The tendency toward early menarche, along with the observed causal relationships indicate that the analyzed sample is nearing the characteristics and standards of living noted in other middle and even high-income countries in the world.

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Fat-free mass in adolescent athletes: Accuracy of bioimpedance equations and identification of new predictive equations

Cited by 22 publications

References 41 publications

Maturity Related Differences in Body Composition Assessed by Classic and Specific Bioimpedance Vector Analysis among Male Elite Youth Soccer Players

Maturity Related Differences in Body Composition Assessed by Classic and Specific Bioimpedance Vector Analysis among Male Elite Youth Soccer Players

Analysis of grip strength and somatotype features of armwrestling athletes of different skill levels

The relationship among the age at menarche, anthropometric characteristics, and socio‐economic factors in Bengali girls from Kolkata, India

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