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Article

Bioimpedance Vector Patterns according to Age and Handgrip Strength in Adolescent Male and Female Athletes

1
Department of Basic and Experimental Nutrition, Nutrition Institute, State University of Rio de Janeiro, Rio de Janeiro 20550-900, Brazil
2
Department for Life Quality Studies, University of Bologna, 47921 Rimini, Italy
*
Author to whom correspondence should be addressed.
Academic Editor: Paul B. Tchounwou
Int. J. Environ. Res. Public Health 2021, 18(11), 6069; https://doi.org/10.3390/ijerph18116069
Received: 8 May 2021 / Revised: 28 May 2021 / Accepted: 30 May 2021 / Published: 4 June 2021
Bioelectric Impedance Vector Analysis (BIVA) can be used to qualitatively compare individuals’ hydration and cell mass independently of predictive equations. This study aimed to analyze the efficiency of BIVA considering chronological age and handgrip strength in adolescent athletes. A total of 273 adolescents (male; 59%) engaged in different sports were evaluated. Bioelectrical impedance (Z), resistance (R), reactance (Xc), and phase angle (PhA) were obtained using a single-frequency bioelectrical impedance analyzer. Fat-free mass (FFM) and total body water were estimated using bioimpedance-based equations specific for adolescents. Female showed higher values of R (5.5%, p = 0.001), R/height (3.8%, p = 0.041), Z (5.3%, p = 0.001), and fat mass (53.9%, p = 0.001) than male adolescents. Male adolescents showed higher values of FFM (5.3%, p = 0.021) and PhA (3.1%, p = 0.033) than female adolescents. In both stratifications, adolescents (older > 13 years or stronger > median value) shifted to the left on the R-Xc graph, showing patterns of higher hydration and cell mass. The discrimination of subjects older than 13 years and having higher median of handgrip strength values was possibly due to maturity differences. This study showed that BIVA identified age and strength influence in vector displacement, assessing qualitative information and offering patterns of vector distribution in adolescent athletes. View Full-Text
Keywords: adolescent athletes; body composition; BIVA; confidence ellipses; fat-free mass; R-Xc graph; tolerance ellipses adolescent athletes; body composition; BIVA; confidence ellipses; fat-free mass; R-Xc graph; tolerance ellipses
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MDPI and ACS Style

Cattem, M.V.d.O.; Sinforoso, B.T.; Campa, F.; Koury, J.C. Bioimpedance Vector Patterns according to Age and Handgrip Strength in Adolescent Male and Female Athletes. Int. J. Environ. Res. Public Health 2021, 18, 6069. https://doi.org/10.3390/ijerph18116069

AMA Style

Cattem MVdO, Sinforoso BT, Campa F, Koury JC. Bioimpedance Vector Patterns according to Age and Handgrip Strength in Adolescent Male and Female Athletes. International Journal of Environmental Research and Public Health. 2021; 18(11):6069. https://doi.org/10.3390/ijerph18116069

Chicago/Turabian Style

Cattem, Marcus V.d.O., Bruna T. Sinforoso, Francesco Campa, and Josely C. Koury 2021. "Bioimpedance Vector Patterns according to Age and Handgrip Strength in Adolescent Male and Female Athletes" International Journal of Environmental Research and Public Health 18, no. 11: 6069. https://doi.org/10.3390/ijerph18116069

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