The first purpose of this article was to identify the current methods to assess the anaerobic exercise capacity of athletes, both in the laboratory and in the field of sports competitions. The second purpose of the research was to highlight the factors that limit the ability of anaerobic effort, according to the literature in the field. We found that anaerobic capacity is still difficult to estimate and/or measure, mainly because of the laborious, invasive, and expensive research methodology. To ensure the quality and veracity of the data, strict adherence to test procedures, calibration of instruments, and increased attention to physiological measurements are recommended.

Puberty represents the period in which athletes go through many changes from a physical, morpho-functional and psychological point of view. Also, in the age range between 13-14 years, the training of athletes registers a gradual increase in the volume and intensity of training, which determines special attention on the methods and means used during training. This study was carried out with the aim of identifying the level of development of the motor indices directly involved in the practice of the handball game. The research methods used during this study were: the method of analyzing specialized and interdisciplinary literature, the pedagogical observation method, the statistical-mathematical method and the tabular method. Following the study, we would like to emphasize the urgent need to update the performance scales specific to the game of handball and develop unitary training models, from the perspective of the content of the training process for each age group.