“…For example, Baylor and Spirduso (1988) found that regular physical activity improves the efficiency of simple reaction times, more with regards to the pre-motor fraction (70%) than to motor fraction of the reaction time (30%). Many researchers confirm this thesis, reporting faster response times in athletes in comparison with non-athletes (Ando, Kida, Oda, 2001;Kioumourtzoglou, Kourtessis, Michalopoulou, Derri, 1998;Kokubu, Ando, Kida, Oda, 2006;Overney, Blanke, Herzog, 2008;Piras, Lobietti, Squatrito, 2014;Vansteenkiste, Vaeyens, Zeuwts, Philippaerts, Lenoir, 2014;Zwierko, Osiński, Lubiński, Czepita, Florkiewicz, 2010). On the other hand, not all articles confirm the existence of a relationship between the efficiency of motor reactions and physical fitness (Cojocarlu and Abalasel …”