This record presents a study focused on prefrontal hemodynamics and working memory after exhaustive aquatic exercise. The physiological conditions investigated in this research are exercise and cognitive function. The specific intervention used in the study was an incremental exhaustive aquatic stepping exercise. The objective was to evaluate changes in prefrontal blood flow and working memory performance following this exertion. The study was officially sponsored and conducted by Manisa Celal Bayar University. According to the available record, this research project has already been completed. The provided text does not contain any specific numerical values or statistical outcomes.