Hyperspectral remote sensing images contain hundreds of data channels. Due to the high dimensionality hyperspectral data, it is difficult design accurate and efficient image segmentation algorithms for such imagery. In this paper, a new multilevel thresholding method introduced multispectral images. The based on fractional-order Darwinian particle swarm optimization (FODPSO) which exploits many swarms test solutions that may exist at any time. addition, concept fractional derivative used...

Physical activity is associated with health. The aim of this study was (a) to access if Portuguese university students meet the public health recommendations for physical and (b) effect gender day week on daily PA levels students. This observational cross-sectional involved 126 (73 women) healthy aged 18–23 years old. Participants wore ActiGraph wGT3X-BT accelerometer seven consecutive days. Number steps, time spent sedentary in light, moderate vigorous were recorded. two-way MANOVA revealed...

This study analyzed the network characteristics of successful and unsuccessful national teams that participated in FIFA World Cup 2014. The relationship between variables overall team performance measured on basis passes teammates was also investigated. A dataset 37,864 64 soccer matches enabled structure 32 teams. Our results showed significant differences dependent density (F4,123 = 2.72; p 0.03; η2p 0.04; small effect size) total links 2.73; reached later stages tournament. Goals scored...

This study aims to examine the effect of differences in number players and scoring method on heart rate responses, time–motion characteristics, technical/tactical performance during small-sided soccer games. Ten male amateur (26.4 ± 5.3 years old, 8.4 3.2 practice, 179.3 5.2 cm body height, 71.2 7.1 kg weight, 45.8 2.6 ml.kg–1min–1VO2max) from Portuguese regional league played nine different games (i.e., 3 formats × methods). The used two-way MANOVA, two-away ANOVA, one-way depending...

This study aimed to analyze the most prominent players' positions that contributed build of attack in football during FIFA World Cup 2014. The connections among teammates all matches tournament were analyzed, and tactical lineup players codified as independent variables. Four centrality network metrics used identify pertinence each position. A total 37,864 passes between recorded. Each national team was analyzed terms their matches, thus 64 from 2014 this study. 128 adjacency matrices...

SOCCER COACHES HAVE BEEN INCREASING THE USE OF SMALL-SIDED GAMES IN TRAINING. THESE SHOW A SIMILAR EFFICIENCY AS TRADITIONAL RUNNING METHODS (WITHOUT BALL) DEVELOPING PHYSICAL FITNESS PLAYERS. MOREOVER, ENABLE DEVELOPMENT BOTH TECHNICAL SKILLS AND TACTICAL ACTIONS. HOWEVER, THERE IS LITTLE KNOWLEDGE ABOUT PROPER ORGANIZATION THAT NECESSARY FOR TO ACHIEVE DESIRED EFFECTS THIS REVIEW AIMS SUMMARIZE PHYSIOLOGICAL ON PLAYERS PROMOTED BY DEVELOP METHODOLOGICAL SCHEMATIZATION ORGANIZING GAMES.

The aim of this study was to propose a set network methods measure the specific properties team. These metrics were organised at macro-analysis levels. interactions between teammates collected and then processed following analysis levels herein announced. Overall, 577 offensive plays analysed from five matches. density showed an ambiguous relationship among team, mainly during 2nd half. mean values for all matches 0.48 in 1st half, 0.32 half 0.34 whole match. heterogeneity coefficient...

Abstract The main objective of this study was to analyse the distance covered and activity profile that players presented at FIFA World Cup in 2010. Complementarily, by each team within same competition analysed. For purposes 443 were analysed, which 35 goalkeepers, 84 external defenders, 77 central 182 midfielders, 65 forwards. Afterwards, a thorough analysis performed on 16 teams reached group stage, 8 achieved round 16, 4 quarter-finals, qualified for semi-finals finals. A comparison mean...

The aim of this study was to inspect the influence each half match and ball possession status on players’ spatio-temporal relationships. Three official matches a professional football team were analysed. From locations collected team’s wcentroid, wstretch index, surface area effective play at 9218 instants. results suggested that values teams’ dispersion average position field decreases during 2nd match. In sum, showed influenced relationships, in way significantly contributes collective...

SMALL-SIDED GAMES ARE USUALLY USED IN SOCCER TRAINING TO DEVELOP ELEMENTS OF PHYSIOLOGICAL, PHYSICAL, TECHNICAL, AND TACTICAL PERFORMANCE. NEVERTHELESS, FEW STUDIES HAVE ATTEMPTED ANALYZE THE PHYSIOLOGICAL EFFECTS OR PROVIDE METHODOLOGICAL CONSIDERATIONS FOR PERIODIZATION USING SUCH GAMES. THUS, AIM THIS PAPER IS REVIEW GENERAL TERMS RESPONSES. AS A RESULT, SMALL WAS DEVELOPED CONSIDER SOME IMPLEMENT TRAINING. FINALLY, AN EXAMPLE PROPOSED WEEK SPENT CARRYING OUT MICROCYCLES ORIENTATIONS...

The aim of this pilot study was propose a set network methods to measure the specific properties football teams. These metrics were organized on "meso" and "micro" analysis levels. Five official matches same team First Portuguese Football League analyzed. An overall 577 offensive plays analyzed from five matches. From adjacency matrices developed per each play it computed scaled connectivity, clustering coefficient centroid significance conformity. Results showed that highest values...

The game of football demands new computational approaches to measure individual and collective performance. Understanding the phenomena involved in may foster identification strengths weaknesses, not only each player, but also whole team. development assertive quantitative methodologies constitutes a key element sports training. In football, predictability stability inherent motion given player be seen as one most important concepts fully characterise variability This paper characterises...

O isolamento social é estratégia para evitar o contágio e transmissão do coronavírus. Este estudo teve como objetivo avaliar as atividades físicas (AF) realizadas em ambientes fechados hábitos de saúde entre adolescentes durante devido à pandemia COVID-19 (COVID-19). Estudo transversal com 342 adolescentes, 12 a 17 anos idade, estudantes escola pública participantes esportivas escolares. Um questionário on-line foi enviado os 18 perguntas sobre alimentares, sono, comportamentos proteção ao...

In football, the tactical behaviour of a team is related to state ball possession, i.e., defensive and offensive phases. The aim this study was measure responses two opposing teams in moments with without thus trying identify differences results arising from metrics such as weighted centroid position, stretch index, surface area effective play. herein presented show statistical both teams, either or for -axis ( p-value ≤ 0.001), index 0.001) play 0.001). Such confirm that react depending...

In collective sports, the match analysis is fundamental in order to improve quality of coaches’ intervention. Nevertheless, generality systems are based on notational which does not allow a deep understanding about behaviour team. Therefore, main goal this study update and design new tactical metrics that allows an improved online knowledge teams’ behaviour. Tactical such as centroid, stretch index effective play area will be presented throughout study, validated by means single experimental...

The aim of this study was to analyse the association between physical/technical variables and tactical prominence in U14 soccer matches. Twenty-two young amateur players (13.5 0.5 years old, 5.4 practice, 163.3 9.8 cm body height) from two teams Portuguese regional league volunteered for study. Our results showed positive moderate correlation dribbling test betweenness centrality (r = 0.324; p 0.142), negative %fatigue index −0.390; 0.073). Physical technical had no statistical differences...

The aim of this study was to analyze the effect different small-sided and conditioning games (SSCG) with tactical contents on heart rate responses, technical performance collective organization youth basketball players levels. Twenty male from U14 (13.7 ± 0.8 years old; 4.2 1.4 practice) U16 (15.3 1.1 6.4 2.1 participated in research study. two-way MANOVA revealed that sports level (p = 0.009; [Formula: see text] 0.151), format 0.001; 0.246) task condition 0.023; 0.104; small size) had...

Network analysis can provide a new set of important information about players and teams’ behaviour throughout match. Despite their pertinence, football using network metrics is limited. Therefore, the aim this study was to analyse goals scored conceded by single team during full season methods. Thirty-six games were analysed from these data players’ connectivity in actions preceding 46 15 collected. The results showed that most used plays resulted forward regions, mainly penalty area....

enfoque usando los métodos de network para caracterizar las interacciones entre jugadores