Many RoboCuppers share a dream: a team of fully autonomous humanoid robot soccer players that is capable of playing soccer games against human players by 2050. The demonstration of a human versus robot soccer game at RoboCup 2007 was an exciting display of the progress that has been in RoboCup community since 1997 in terms of the robot’s autonomy, sensing ability, and physical features. This ga...

This study compared changes in neurocognitive performance and symptom reports following an acute bout of soccer heading among athletes with and without protective soccer headgear. A total of 25 participants headed a soccer ball 15 times over a 15-minute period, using a proper linear heading technique. Participants in the experimental group completed the heading exercise while wearing a protecti...

BACKGROUND During a soccer game, the cardiovascular system is severely taxed The referees must be alert and their level of fitness must be such that fatigue will not impair their decision-making. Referee's peak overall performance is usually after 40 when the performance starts to decline. We evaluated the morphological and functional cardiac profile of professional soccer referees. MATERIALS...

Body composition is an important aspect of soccer fitness. There is a dearth of longitudinal data on the intraseasonal variation in the body composition parameters of youth professional soccer players especially of Asian origin. This study assessed the body composition profile of the Asian youth professional soccer players (n=20; Mean ± SD, age 17.5 ± 0.3 years, stature 1.73 ± 0.04 m, body mass...

BACKGROUND The effects of head impact in sports are of growing interest for clinicians, scientists, and athletes. Soccer is the most popular sport worldwide, but the burden of head impact in collegiate soccer is still unknown. PURPOSE To quantify head impact associated with practicing and playing collegiate soccer using wearable accelerometers. STUDY DESIGN Descriptive epidemiological study...

The purpose of this study was to analyze the leadership power perceptions of soccer coaches and soccer players according to their educational levels. Data were collected from 165 male soccer coaches and 870 male soccer players. Adapted versions of the "Power in Soccer Questionnaire-Other", the "Power in Soccer Questionnaire-Self" and an "information form" were used for data collection, and coll...

To make a robot team perform a soccer game, various technologies must be developed. To date, we constructed a multi-sensor based mobile robot for robotic soccer research. Based on this platform, we have implemented some behaviors for playing soccer and the vision system with on-line visual learning function. This year, we refine behaviors for playing soccer since we improve a motor control syst...