Background: The present study was conducted to investigate the possible effects of L-carnitine and glutamine and their synergistic effects on male soccer athletes. Methods: 28 male soccer players (21.1 ± 0.7 y) were enrolled in a randomized pre and post intervention, double-blind design. Before the intervention, their performances were assessed by Bruce protocol, and their body compositi...

The objectives of this study were to (i) describe soccer training (e.g., volume, types), anthropometry, body composition, and physical fitness and (ii) compute associations between soccer training data and relative changes of anthropometry, body composition, and physical fitness during a soccer season in female elite young athletes. Seasonal training (i.e., day-to-day training volume/types) as ...

PURPOSE This study examined the effects of exercise-induced fatigue on soccer skills performed throughout simulated match play. METHODS Fifteen academy soccer players completed a soccer match simulation (SMS) including passing, dribbling, and shooting skills. Precision, success rate, and ball speed were determined via video analysis for all skills. Blood samples were obtained before exercise ...

In this article, we propose a new estimation strategy that draws on the variation in the performance between the male and the female national soccer team within a country to identify the effect of gender equality on women’s soccer success. For this, countryyear fixed effects are used to control for both time-constant and time-variant countryspecific factors. Our results reveal that within-count...

AIM The current study had two aims. The primary purpose was to examine the association between serum vitamin D levels and the ergometric evaluation of muscle strength, aerobic capacity, and speed in professional soccer players. The secondary aim was to evaluate the effects of the soccer off-season period on serum vitamin D levels. METHODS Sixty-seven Caucasian male soccer players (age 25.6 ± ...

The purpose of this study was to examine the effects of acute creatine-monohydrate supplementation on soccer-specific performance in young soccer players. Twenty young male soccer players (16.6 +/- 1.9 years) participated in the study and were matched and allocated to 2 randomly assigned trials: ingesting creatine-monohydrate supplement (3 x 10-g doses) or placebo for 7 days. Before and after t...

In this case a seventeen-years-old male soccer player, who sustained an injury while playing football, diagnosed as ischial tuberosity avulsion was reported. Following six-months of a conservative rehabilitation program, the athlete returned to his sports' activities. Six years along he had no complaints and his athletic performance was not deteriorated. In this case report diagnosis, treatment...

BACKGROUND A high level of strength is inherent in elite soccer play, but the relation between maximal strength and sprint and jumping performance has not been studied thoroughly. OBJECTIVE To determine whether maximal strength correlates with sprint and vertical jump height in elite male soccer players. METHODS Seventeen international male soccer players (mean (SD) age 25.8 (2.9) years, he...

The main aim of this study was to investigate the effects of short burst speed and change-of -direction exercises on sprint and agility performance in youth female soccer players 15.5 (± 0.7) years. One training group (n=10) followed an eight-week, once per week training program consisting of short-burst sprinting exercises in addition to two normal soccer training, while a control group (n=9) ...

In order to create a cooperative architecture for multiagent systems in robotic soccer, it is necessary to model and understand the human soccer concepts to use and express them computationally. This work presents the main features for a multi-agent cooperative architecture based on human soccer concepts. The architecture can be applied to different categories of RoboCup. To test its performanc...