The Influence of COVID-19 Pandemic Lockdown on the Physical Performance of Professional Soccer Players

 https://www.mdpi.com/1237310

LAS DISTANCIAS A RECORRER PARA LOS EJERCICIOS INTERMITENTES (TIPO 30-30 Y 15-15)

https://www.preparacionfisicafutbol.com/2021/distancias-ejercicios-intermitentes 

www.preparacionfisicafutbol.com 

High-Intensity Interval Training in pre season period Useful or not ?

 

https://www.researchgate.net/publication/347438863_Effects_of_a_short_High-Intensity_Interval_Training_Shock_Microcycle_at_the_beginning_of_the_pre-season_in_a_semi-professional_soccer_team