[Observational analysis of the free throw shot made by grassroots basketball players].

This article represents an approach to the free throw from the perspective of observational methodology. Faced with the obvious difficulty of transferring quantitative data resulting from the habitual biomechanical studies to everyday sports intervention, an easily accessible observational tool has been produced which, as a main contribution, allows the detection of T-patterns in free-throw shots. As the endorsement of the usefulness of the designed observational tool, an example is presented of the results obtained in a research design that studies a selection of grassroots basketball players (11-12 years).