“…In addition, training high-intensity functions increased Brain-derived neurotrophic factors (BDNF) that caused the development in cognitive performance in attention, executive functions, cognitive flexibility, and working memory (Yarrow et al, 2010). Furthermore, Strategy game play in handball consists in remembering movements and deviations, and in associating them to visual landmarks or to experienced events, and to draw a mental map of the environment that can help to improve cognitive flexibility and executive function (Di Tore, 2016;Kiss & Balogh, 2019) Moreover, high-intensity functional training programs can increase Intrinsic motivation and improve muscle function and the cardiovascular system (Wilke et al, 2019;Menz et al, 2019). Therefore, the experimental group in the part of attention, executive functions, cognitive flexibility, and working memory more than the control group and was related to improve the achievement of sports skills in the experimental group.…”