Application of the Performance Index for Monitoring Anaerobic Endurance of Competitive Swimmers. - Kuliś, Szymon; Jabłoński, Tomasz; Rossi, Carlo; Skorulski, Maciej; Kossek, Anna; Sienkiewicz-Dianzenza, Edyta; Pietraszewski, Przemysław; Gołaś, Artur; Gajewski, Jan (Journal of Human Kinetics, 2025)