Autor(es): Werneck, Andre O. [UNESP] ; Conde, Jorge ; Coelho-e-Silva, Manuel J. ; Pereira, Artur ; Costa, Daniela C. ; Martinho, Diogo ; Duarte, Joao P. ; Valente-dos-Santos, Joao ; Fernandes, Romulo A. [UNESP] ; Batista, Mariana B. ; Ohara, David ; Cyrino, Edilson S. ; Ronque, Enio R. V.
Data: 2019
Identificador Persistente: http://hdl.handle.net/11449/185608
Origem: Oasisbr
Assunto(s): Static allometry; Cardiorespiratory fitness; Body composition; Puberty growth spurt; Physical fitness
Made available in DSpace on 2019-10-04T12:36:53Z (GMT). No. of bitstreams: 0 Previous issue date: 2019-04-08
Portuguese Foundation for Science and Technology
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Foundation for the Support of Scientific and Technological Development of Parana (FAADCT/Brazil)
BackgroundThis study aimed to determine the allometric exponents for concurrent size descriptors (stature, body mass and fat-free mass) and also to examine the contribution of chronological age and pubertal status combined with above mentioned size descriptors to explain inter-individual variability in the peak of oxygen uptake (VO2peak) among girls during circumpubertal years.MethodsThe final sample included 51 girls (10.7-13.5years). VO2peak was derived from an incremental progressive maximal protocol using a motorized treadmill. Anthropometry included body mass, stature and skinfolds. Measurements were performed by a single trained observer. Sexual maturation was assessed as self-reported stage of pubic hair (PH) development. Static allometric models were explored as an alternative to physiological output per unit of size descriptors. Allometry also considered chronological age and sexual maturation as dummy variable (PH2 vs. PH3 and PH3 vs. PH4).ResultsScaling coefficients for stature, body mass and fat-free mass were 1.463 (95%CI: 0.476 to 2.449), 0.516 (95%CI: 0.367 to 0.666) and 0.723 (95%CI: 0.494 to 0.951), respectively. The inclusion of sexual maturation increased explained variance for VO2peak (55% for PH2 vs. PH3 and 47% for PH3 vs. PH4). Body mass was identified as the most prominent body size descriptor in the PH2 vs. PH3 while fat-free mass was the most relevant predictor combined with PH3 vs. PH4.ConclusionsBody mass and fat-free mass seemed to establish a non-linear relationship with VO2peak. Across puberty, inter-individual variability in VO2peak is explained by sexual maturation combined with whole body during early puberty and by sexual maturation and fat-free mass during late puberty. Additional studies need to confirm ontogenetic allometric models during years of maximal growth.
State Univ Londrina UEL, Study & Res Grp Phys Act & Exercise GEPAFE, Londrina, Parana, Brazil
State Univ Londrina UEL, Study & Res Grp Metab Nutr & Exercise GEPEMENE, Londrina, Parana, Brazil
Sao Paulo State Univ, Dept Phys Educ, Sci Res Grp Related Phys Act GICRAF, Lab InVest Exercise LIVE, Presidente Prudente, SP, Brazil
Polytech Inst Coimbra, Sch Hlth & Technol, Coimbra, Portugal
Univ Coimbra, CIDAF Uid Dtp 04213 2019, Coimbra, Portugal
Univ Coimbra, Fac Sports Sci & Phys Educ, Coimbra, Portugal
Univ Coimbra, Estadio Univ, Pavilhao 3, P-3040156 Coimbra, Portugal
Portuguese Fdn Sci & Technol SFRF BD 136193 2018, Lisbon, Portugal
Portuguese Fdn Sci & Technol SFRH BD 121441 2016, Lisbon, Portugal
Portuguese Fdn Sci & Technol SFRH BD 101083 2014, Lisbon, Portugal
Portuguese Fdn Sci & Technol SFRH BPD 100470 2014, Lisbon, Portugal
Univ Coimbra, Inst Biomed Imaging & Life Sci IBILI, Fac Med, Coimbra, Portugal
Lusofona Univ Humanities & Technol, Fac Phys Educ & Sport, Lisbon, Portugal
Fed Univ Mato Grosso Sul UFMS, Pantanal Campus, Corumba, Brazil
Sao Paulo State Univ, Dept Phys Educ, Sci Res Grp Related Phys Act GICRAF, Lab InVest Exercise LIVE, Presidente Prudente, SP, Brazil
Portuguese Foundation for Science and Technology: uid/dtp/04213/2019
Portuguese Foundation for Science and Technology: SFRF/BD/136193/2018
Portuguese Foundation for Science and Technology: SFRH/BD/121441/2016
Portuguese Foundation for Science and Technology: SFRH/BD/101083/2014
Portuguese Foundation for Science and Technology: SFRH/BPD/100470/2014
