Abstract The present study aimed to compare players’ tactical behaviour in 3 vs. and 6 soccer small-sided games (SSGs). sample comprised 3,482 actions performed by 18 U-11 youth players from a Portuguese club, SSGs. All participants played eight minutes both situations field size was adapted according the number of involved (30 m x 19.5 for 60 39 6). System Tactical Assessment Soccer (FUT-SAT) used data collection analyses. Descriptive analysis conducted verify frequencies percentages...

This study compared the relative physical demands of official matches and sided games (medium large) in professional soccer players by means a global positioning system. Twenty-three male (24.632.84 years old; 180.946.49 cm; 77.196.46 kg; 52.995.01 VO2max) participated study. Total distance, running sprinting number sprints, acceleration sum were quantified per minute to compare different games. Running distance full match was greater than 5vs5+GK (d = 2.303, moderate effect), 6vs6+GK 1.719,...

We examine how mental fatigue (MF) influences peripheral perception, tactical behaviour, and physical performance of soccer players during a standardized small-sided game.Eighteen male university first-team participated. A modified Stroop task the Vienna Test System were employed to induce MF evaluate players' respectively. The FUT-SAT test was used assess participants' behaviour quantified using GPS technology.MF decreased visual field (pre-test = 189.9° post-test 181.6°). Additionally,...

The present study examines the associations between tactical performance indexes with quality of behaviours and birth-date quarters youth Soccer players. sample comprised a total 534 players classified into four seasons 3 months (January-March; April-June; July-September; October-December). A system assessment in (FUT-SAT) was used to collect data. Descriptive statistics multinomial logistic regression were applied. divided tercis (low, moderate high) order evaluate influences relative age...

Soccer is a predominantly tactical sport and skills are particularly important for enhancing performance, since the actions unpredictable, thus forcing players to constantly adapt situations. Our aim compare behaviour performance of soccer in 3v3 5v5 small-sided games (SSGs). The sample comprised 10 U-11 youth who performed 1,563 both SSGs. We used System assessment (FUT-SAT) assess players' performance. Descriptive analyses were Shapiro-Wilk normality test was conducted T-test repeated...

The present study aimed to investigate whether the form and amount of declarative tactical knowledge (DTK) procedural (PTK) influence cognitive effort during soccer performance among young players. We assessed 36 male players from a Brazilian first-division club; participants averaged 14.89 ( SD = 1.42) years age. evaluated DTK video simulation tests PTK through System Tactical Assessment in Soccer. by measures pupil diameter using Mobile Eye Tracking-XG while viewed scenes made game-related...

Purpose: This study aimed to investigate if player tactical skill level and age category influence team performance exploratory behavior in tasks with different difficulty levels. Method: In total, 48 youth male soccer players participated the (U15, n = 24, mean 13.06 ± 1.53 years; U17, 16.89 0.11 years). Player skills were evaluated through System of Tactical Assessment Soccer (FUT-SAT), allowing them be organized into three groups according efficiency: Higher (Group 01), Intermediate 02),...

This study examined players' tactical behaviours based on core principles during small-sided and conditioned games (SSCG) with without floaters the sidelines. A total of 24,068 actions performed by 168 Under-17 academy soccer players were assessed using System Tactical Assessment in Soccer (FUTSAT) across two different SSCG: "Floaters off" (Gk+3 vs. 3+Gk) sidelines" 3+Gk+2 floaters). Results revealed that showed depending SSCG format playing phase. In SSCG, more frequently concentration...

Affective decision-making is a type of Executive Function related to cost benefit analysis in situations where gains and losses imply direct consequences for the subject. The purpose this study was explore influence affective on tactical behavior soccer players under age 15 years old. System Tactical Assessment Soccer (FUT-SAT) used assess behavior. To evaluate decision-making, we neuropsychological test called Iowa Gambling Task (IGT). values offensive, defensive game participants were...

This study assessed the relative age effect (RAE) in judo athletes who participated Olympic Games from 1964 to 2012. The names and birth-dates of were collected open-access websites. Data male ( n = 1,762) female 665) competitors analyzed separately. Chi-squared tests performed investigate REA medalists, by weight categories sexes. When analyses used semesters divide period when born, a RAE was found heavyweight medallists. Thus, selected group had at highest competitive level, RAEs present...

In soccer, it is relevant to understand the roles of Systems 1 (intuitive) and 2 (deliberative) in perceptual-cognitive processes how they influence response time when making decisions. The aim this study was analyse decision managed by associated young soccer players. Ninety players participated. Perceptual-cognitive were assessed through visual search strategies, cognitive effort, verbal reports. Participants wore a mobile-eye tracking system while viewing 11-a-side match play video-based...

Studies in talent identification and selection showed that more talented players usually possessed better decision-making skills. Nevertheless, studies on this topic have not yet been carried out: 1) assessing both time quality based offensive defensive skills among selected deselected youth soccer players; 2) neither assessed South American samples. This study aimed to compare the from Brazilian elite academies. The sample comprised 317 male (U-14, U-15, U-16, U-17) teams of first national...

a correlação entre as avaliações dos treinadores e do sistema.Os

The purpose of this paper was to report the development and preliminary validation tactical assessment system in Soccer highlight its advantages. process followed five perspectives concept validity that consider value heuristic methods importance description behavior performed playing situations. Thus, focused on four points: i) acceptability reasonableness test perceived by players; ii) analysis content tool through a panel experts; iii) potential discriminate quality performance iv)...

JavaScript emerges today as one of the most important programming languages for development client-side web applications. Therefore, it is essential that browsers be able to execute programs efficiently. However, dynamic nature this language makes very challenging achieve much needed efficiency. In paper we propose parameter-based value specialization a way improve quality code produced by JIT engines. We have empirically observed almost 60% functions found in world's 100 popular websites...

The purpose of this study was to (1) verify the correlation between maturation and peripheral perception (2) analyse effect on efficiency tactical behaviour in young soccer players. Fifty-four (U-11, U-13 U-15) male players participated study. evaluated by Khamis-Roche method, a computer-based test Mental Test Training System, System Tactical Assessment Soccer. Descriptive analysis, Kolmogorov-Smirnov, Spearman bivariate correlation, multivariate analysis variance tests were performed....

Purpose The aim of the study was to verify effect mental fatigue on tactical actions quality and intensity covered distance in soccer players. Methods Six U-15 male players participated this (14.7 ± 0.59 years age). For data collection, FUTSAT GPSports® (SPI-HPU) systems were applied. To induce fatigue, Stroop task used for 20 minutes. individuals evaluated 2 conditions: control (with without task). Statistical analysis performed with Kolmogorov-Smirnov test, t-test, Wilcoxon test. Results...