Title: The evaluation of occurrence and quality of the most widely used swimming technique used by the public in Prague. Objectives: The aim of the thesis is to find out in selected Prague pools, which swimming technique is the most widely accepted by public. Identify and compare the specific technical deficiencies in the performance of the swimming techniques with respect to age and sex. Methods: Direct observation was used as the research method. The results of the observation were recorded in the pre-built tables. The recorded data was processed with statistical methods and subsequently were compared, evaluated and graphically represented. Results: It was found that the most used swimming technique by public in selected Pragues pools is ...