THEORETICAL FRAMEWORK Sport-related concussion is a subset of mild traumatic brain injury induced by a blow either directly to the head or to another part of the body with the force being transmitted to the head (McCrory et al., 2017). A concussion results in a short-lived...

THEORETICAL FRAMEWORK Soccer is a high-intensity team-sport that demands high levels of physical and technical skills, which results in a relatively elevated injury rate. Overall, international soccer players exhibit an injury frequency equal to 9.4 injuries/1000 h of soccer practice (Waldén et al., 2005). Two different...

THEORETICAL FRAMEWORK Although millions of children play soccer worldwide, only a few achieve the top-level. Talent identification (TI) is essential to select and recognize youth players who will be successful in professional leagues. However, TI is a very complex and largely unexplored process. The majority of...

THEORETICAL FRAMEWORK Soccer coaches have limited resources to change the course of the match (Rey et al., 2015). In this regard, efficient management of substitutions may contribute to sustaining or reverting the score-line of a match (Carling et al., 2015; Reyet al., 2015). There are a...

Dr. Jesús Olmo is a specialist in Rehabilitation and Prevention of orthopedic and sports injuries, as well as expert in the health and performance of professional athletes. He is co-founder and director of the Football Science Institute. After heading the medical services of the Spanish...

THEORETICAL FRAMEWORK The physical abilities associated with accelerations, decelerations, and rapid changes of direction (CODs) are considered key components in the match demands of various team-sports (Abdelkrim et al., 2010). A recent systematic review showed that there are approximately 500 to 3000 changes of activity throughout...