RESUMO

The aims of this study were to describe the session rating of perceived exertion (sRPE), total quality recovery (TQR), and variations in countermovement jump (CMJ) height throughout nine weeks of a competitive period in young female basketball players. In total, 10 young female basketball players (17.2 ± 0.4 years; 71.8 ± 15.0 kg; 177.2 ± 9.5 cm) participated in this study. The sRPE and TQR were assessed in each training session, whereas the CMJ height was assessed prior to the first weekly training session. The magnitude-based inferences method was used to compare the sRPE, TQR, and CMJ height across the nine weeks of training. The training loads accumulated in weeks 1, 2, and 3 were likely to almost certainly be higher than in the following weeks (ES varying from 0.67 to 2.55). The CMJ height in week 1 was very likely to be lower than in weeks 2, 5, 7, and 8 (ES varying from 0.24 to 0.34), while the CMJ height of the 9th week was likely to almost certainly be higher than all previous weeks of training (ES varying from 0.70 to 1.10). Accordingly, it was observed that when higher training loads were accumulated, both CMJ and TQR presented lower values than those presented during periods with lower internal training loads. These results highlight the importance of using a comprehensive and multivariate approach to effectively monitor the physical performance of young athletes.

RESUMO

Apesar da importância do lance livre, as médias de acertos nestas situações tem sido inferiores a 70 por cento, apenas alguns jogadores atingem médias superiores. Neste trabalho apresentamos um novo método de treinamento de lances livres através das técnicas de mudança gradual e progressiva das alterações nas especificações dos materiais utilizados nos treinos (no caso, o diâmetro do aro da cesta e a altura da cesta). Foram participantes desta pesquisa 12 atletas, com idade entre 13 e 14 anos. Estes foram submetidos a duas fases na linha de base. Após esta etapa, os atletas foram divididos em dois grupos: o grupo 1 foi submetido à intervenção relacionada a dimensão diâmetro da cesta; e o grupo 2 à intervenção relacionada a dimensão altura da cesta. O procedimento de fading ou esvanecimento foi idêntico para ambos os grupos que passaram pelo delineamento de linha base múltipla entre participantes. A etapa seguimento foi idêntica à etapa de linha de base e tinha como objetivo avaliar se os resultados produzidos na última fase da intervenção se mantinham após a retirada do tratamento. Nos resultados, percebemos que a repetição do ato de arremessar não produziu melhoras no desempenho dos atletas avaliados. O procedimento de fading promoveu melhoras durante a intervenção que se mantiveram durante o seguimento.(AU)

Despite its importance, average free throw accuracy has been below 70 percent; only a few players have managed to achieve a higher average. In this paper a new method of free throw training is presented by progressive and gradual techniques aimed towards specifications changes in materials used in training (in this case, the diameter of the basketball rim and its height). In this research, 12 athletes aged from 13 to 14 years old were chosen to participate in it. They were submitted to two stages at the baseline condition. After this stage, the athletes were divided into two groups: group 1 was submitted to an intervention related to the diameter of the basket and group 2, to an intervention related to the height of the basket. The fading procedure was identical for both groups that went through the multielement baseline design. The next stage was identical to the baseline condition and had the purpose of evaluating whether the results achieved in the last modified stage would last once the treatment was removed. Analyzing the results, it is made clear that practicing shots through repetition did not produce the results expected in the selected group. The fading procedure has brought improvements to the level of accuracy of the evaluated athletes during the treatment, and these results were almost the same in the next stage, identical to the baseline condition.(AU)

A pesar de su importancia, los promedios de aciertos en estas situaciones han sido inferiores a 70 por ciento, sólo algunos jugadores alcanzan promedios superiores. En este trabajo presentamos un nuevo método de entrenamiento de lances libres a través de las técnicas de cambio gradual y progresivo de las alteraciones en las especificaciones de los materiales utilizados en los entrenamientos (en este caso, el diámetro del aro de la cesta y la altura de la cesta). Fueron participantes de este estudio 12 atletas, con edad entre 13 y 14 años, integrantes de un equipo competitivo de básquetbol. Estos fueron sometidos a dos fases en la línea de base. Tras esta etapa, los atletas fueron divididos en dos grupos: el grupo 1 fue sometido a la intervención relacionada a la dimensión diámetro de la cesta; y el grupo 2 a la intervención relacionada a la dimensión altura de la cesta. El procedimiento de fading o desvanecimiento fue idéntico para ambos grupos que pasaron por el delineamiento de línea base múltiple entre participantes. La etapa seguimiento fue idéntica a la etapa de línea de base y tenía como objetivo evaluar si los resultados producidos en la última fase de la intervención se mantenían tras la retirada del tratamiento. En los resultados, percibimos que la repetición del acto de lanzar no produjo mejorías en el desempeño de los atletas evaluados. El procedimiento de fading promovió mejorías durante la intervención que se mantuvieron durante el seguimiento.(AU)