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      A menarca e seu impacto nas qualidades físicas de escolares Translated title: Impacto de la menarquía en las capacidades físicas de escolares Translated title: The menarche and its impact on schoolgirls' physical qualities

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          Abstract

          Objetivos Analisar a idade de ocorrência da menarca em escolares de Angra dos Reis/RJ e o comportamento das qualidades físicasem diferentes períodos da puberdade, utilizando a menarca como referência da maturação sexual. Métodos A amostra constou de 232 meninas com idades entre 10 e 16 anos divididas em quatro grupos de acordo com a maturação sexual. Após a entrega da anamnese referente à menarca foram marcados os dias dos testes motores para avaliar a qualidades físicas força explosiva de membros inferiores, velocidade de corrida, flexibilidade e consumo máximo de oxigênio absoluto e relativo. Utilizou-se a estatística descritiva para avaliar a idade da menarca; a ANOVA one way e a correlação de Pearson (p<0,05) foram utilizadas para analisar o comportamento das qualidades físicas de acordo com o período da menarca. Resultados A idade da menarca foi 12,23±1,2 anos e diferenças significativasentre os grupos foram encontradas nas qualidades físicas força explosiva de membros inferiores, velocidade de corrida e consumo máximo de oxigênio absoluto e relativo. Conclusões A ocorrência da idade da menarca foi condizente com a de estudos realizados no Brasil. Durante a puberdade a força explosiva de membros inferiores e a velocidade de corrida aumentam, o consumo máximo de oxigênio absoluto aumenta com tendência de queda dois anos após a menarca e oconsumo máximo relativo apresenta declínio durante a puberdade.

          Translated abstract

          Objetivo Analizar la edad de la menarquía, como una referencia de la maduración sexual de los escolares en Angra dos Reis/RJ, con respecto a las capacidades físicas en las diferentes etapas de la pubertad. Métodos La muestra se conformó con 232 niñas en edades comprendidas entre 10 y 16 años, divididos en cuatro grupos en función de la maduración sexual. Después de la entrevista, se aplicó un test de motricidad para evaluar las capacidades físicas, con base en la fuerza explosiva de miembros inferiores, la velocidad de carrera, la flexibilidad y el consumo máximo de oxígeno relativo y absoluto. Para evaluar la edad de la menarquía con respecto al comportamiento de las capacidades físicas, se utilizaron estadística descriptiva, ANOVA de una vía y la correlación de Pearson (p<0,05) Resultados La edad de la menarquía fue de 12,23±1,2 años y se encontraron diferencias significativas entre los grupos, con respecto a la fuerza explosiva de miembros inferiores, la velocidad de carrera y el consumo máximo de oxigeno relativo y absoluto. Conclusiones El papel de la edad de la menarquía estuvo de acuerdo con estudios realizados en Brasil. Durante la pubertad, la fuerza de miembros inferiores y la velocidad de carrera aumentan, el consumo máximo de oxígeno absoluto aumenta con tendencia a la baja dos años después de la menarquía y el consumo máximo relativo disminuye.

          Translated abstract

          Objectives Ascertaining the age when the menarche occurs in school girls living in Angra dos Reis/RJ and the pattern of physical qualities in periods during puberty using the menarche as the benchmark for sexual maturation. Methods The sample consisted of 232 10-to16-year-old girls, divided into four groups according to sexual maturation. Following an interview during which the onset of the menarche was recalled, motor tests were scheduled for assessing physical qualities, lower limb power, running speed, flexibility and relative and absolute maximum oxygen consumption. Descriptive statistics were used for assessing the age of onset of the menarche; one-way ANOVA and Pearson's coefficient of correlation (p<0.05) were used for analyzing the physical qualities' pattern according to the onset of the menarche. Results The onset of the menarche was set at 12.23±1.2 years; significant differences were found regarding lower limb power, running speed, absolute and relative maximum oxygen consumption. Conclusions The occurrence of the onset of the menarche agreed with other studies carried out in Brazil. Lower limb power and running speed were seen to increase during puberty, absolute maximum oxygen consumption increased (tending to decline two years after the menarche) and relative oxygen consumption decreased.

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          Determinants of menarche

          Menarche is a milestone in a woman's life as it denotes the start of reproductive capacity. Aim of this report is to review the recent developments and the current knowledge in the neuroendocrinology of pubertal onset and the factors, genetic and environmental, that influence menarcheal age. We also review the implications of early or late menarcheal age on a young woman's life.
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            Association of maturation, sex, and body fat in cardiorespiratory fitness.

            The aims of this cross-sectional study were 1) to estimate changes in body composition and cardiorespiratory fitness across stages of pubertal maturation, and 2) to describe the relationship between maturity status and body fatness, regional fat distribution, and cardiorespiratory fitness. The sample consisted of 494 children (254 males, 240 females), 8-16 years of age. Height and weight were measured with standard anthropometric methods. Percentage of fat (%F) was estimated from two skinfold thicknesses and regional fat distribution was estimated by the ratio of the subscapular to the triceps skinfold (S/T ratio). Biological maturity was based on self-assessment of breast stages in females and pubic hair stages in males. A maximal multistage 20-m shuttle run was used to predict maximal aerobic capacity from maximal aerobic speed. Both VO(2)max and 20SRT-time were used as indicators of cardiorespiratory fitness. ANCOVA with age as the covariate was used. There were significant differences among girls across pubertal stages. Among boys, only weight and height differed significantly by stage of maturity. When adjusted for maturity status, cardiorespiratory fitness expressed either as VO(2)/kg body mass or 20SRT-time was inversely associated with %F in both sexes. This suggests that sexual maturity status alone accounts for a small portion of the variance in aerobic fitness. Height, %F and the S/T ratio were also significantly associated with VO(2)/kg body mass and 20SRT-time. Copyright 2002 Wiley-Liss, Inc.
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                Author and article information

                Journal
                rsap
                Revista de Salud Pública
                Rev. salud pública
                Instituto de Salud Publica, Facultad de Medicina - Universidad Nacional de Colombia (Bogotá, DF, Colombia )
                0124-0064
                April 2013
                : 15
                : 2
                : 281-293
                Affiliations
                [02] Rio de Janeiro orgnameUniversidade Federal do Rio de Janeiro orgdiv1Escola de Educação Física e Desportos Brasil jff@ 123456ceafbr.com.br
                [01] Janeiro, Rio de Janeiro orgnameUniversidade Federal do Rio de Janeiro orgdiv1Instituto de Nutrição Josué de Castro Brasil
                Article
                S0124-00642013000200011 S0124-0064(13)01500200011
                12723a40-e105-456b-b489-8b4ed3ca7e9c

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 15 November 2012
                : 23 August 2012
                : 08 May 2012
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 27, Pages: 13
                Product

                SciELO Colombia

                Self URI: Texto completo somente em PDF (PT)

                Maduración sexual,puberdade e desenvolvimento do adolescente,Maturidade sexual,puberty and adolescent development,Sexual maturation,pubertad y desarrollo del adolescente

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