CARDIAC FUNCTION AND MUSCULAR OXYGEN DESATURATION IN SPRINT AND ENDURANCE COHORTS DURING THE INCREMENTAL BICYCLE ERGOMETRY. - Papievienė, Vilma; Poderienė, Kristina; Trinkūnas, Eugenijus; Grūnovas, Albinas; Poderys, Jonas (Education. Physical Training. Sport / Ugdymas. Kûno kultûra. Sportas, 2014)