Quisemos avaliar as valências físicas e características antropométricas, em meninas menarquiadas e não menarquiadas da rede pública de Tucuruí/PA, com idade de 11 e 12 anos. Avaliou-se 98 meninas com 11 anos e 105 com idade de 12 anos, divididas em dois grupos: menarquidas e não menarquidas. Foi avaliadado peso, estatura, índice de massa corpórea (IMC), a composição corporal de duas dobras (tríceptal e subescapular), os testes físicos foram o Shutle Run, Salto horizontal, 1.609 metros, velocidade de 30 metros, arremesso do “Medicine Ball”. Aplicou-se o teste t para amostras independentes nas variáveis com distribuição normal e o teste Mann-Whitney para as demais, (p < 0,05), com o SPSS for Windows 15.0. Verificou-se diferenças significativas na massa corporal (44.05 e 37.85kg) e estatura (1.48 e 1.42m) entre as meninas de 11 anos. Já nas escolares com 12 anos houve diferença significativa em relação à estatura (1.51 e 1.44m), IMC (19.86 e 18.49 kg/m2), Salto Horizontal (135.49 e 129.40cm), Arremesso do Medicine Ball (238.29 e 207.42cm), corrida de 1.609 metros (11.30 e 10.37 min) e no VO2Máx predito (33.67 e 36.05ml.kg-1.min-1). As menarquiadas apresentaram valores superiores às não menarquiadas nas medidas antropométricas e nos testes de arremesso de “medicine ball”.
It was our objective to evaluate the anthropometric variables and the physical qualities in girls with menarche and without menarche from public school of Tucuruí - PA, with 11 to 12 years old. Ninety-eight girls aged 11 and 105 aged 12 years were evaluated girls and divided into two groups: girls with menarche and girls without menarche. Weight and height, body mass index (BMI), body composition of two skinfolds (triceps and subscapular) were registered. Also, were assessed the performance in shuttle Run, horizontal jump, 1609 meters running, a 30 meters’ sprint run and a 3kg medicine ball throwing. After normality testing with the Kolmogorov Smirnov a t test for independent samples was computed or the Mann-Whitney test. Alpha value was set at 0.05. All calculations were computed using SPSS for Windows 15.0. It was found significant differences in body mass (44.05 and 37.85 kg) and height (1.48 and 1.42m) between groups among 11 years old girls. In the12 years old girls no significant differences were found between groups in relation to height (1.51 and 1.44m), BMI (19.86 and 18.49 kg/m2), horizontal jump (135.49 and 129.40cm), medicine ball throwing (238.29 and 207.42cm), 1.609 meters running (11.30 and 10.37m) and predicted VO2max (33.67 and 36.055 ml.kg-1.min-1). Girls with menstrual cycle had higher values than their counterparts in anthropometric measurements and in the medicine ball throwing.