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https://www.readbyqxmd.com/read/29702518/team-dynamics-running-and-skill-related-performances-of-brazilian-u11-to-professional-soccer-players-during-official-matches
#1
Luiz H Palucci Vieira, Rodrigo Aquino, Felipe A Moura, Ricardo M L de Barros, Vitor M Arpini, Lucas P Oliveira, Bruno L S Bedo, Paulo R P Santiago
Palucci Vieira, LH, Aquino, R, Moura, FA, Barros, RMLd, Arpini, VM, Oliveira, LdP, Bedo, BLdS, and Pereira Santiago, PR. Team dynamics, running, and skill-related performances of Brazilian U11 to professional soccer players during official matches. J Strength Cond Res XX(X): 000-000, 2018-Analyses of movements during soccer competition have been used previously to help develop conditioning programs. However, this has not been extensively studied in youth populations. Therefore, the purposes of this study were to examine (1) dynamics of collective tactical movements, (2) running, and (3) skill-related performances during soccer matches disputed by children to senior players...
April 26, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29628905/polar-coordinate-analysis-of-relationships-with-teammates-areas-of-the-pitch-and-dynamic-play-in-soccer-a-study-of-xabi-alonso
#2
Rubén Maneiro Dios, Mario Amatria Jiménez
Research in soccer has traditionally focused on very specific aspects of the game, such as technical and physiological aspects, and has largely ignored important issues such as tactical performance and the role of individual players within the team. The aim of this study was to study the different relationships that Xabi Alonso, one of the world's best midfielders, establishes with his teammates during offensive play, and to investigate his connections with the pitch in terms of where his direct interventions started and finished, his use of technical actions, his involvement in set plays and interceptions, and his relationship with shots at goal...
2018: Frontiers in Psychology
https://www.readbyqxmd.com/read/29623604/mental-fatigue-and-soccer-current-knowledge-and-future-directions
#3
Mitchell R Smith, Chris Thompson, Samuele M Marcora, Sabrina Skorski, Tim Meyer, Aaron J Coutts
Fatigue is a complex state with multiple physiological and psychological origins. However, fatigue in soccer has traditionally been investigated from a physiological perspective, with little emphasis on the cognitive demands of competition. These cognitive demands may induce mental fatigue, which could contribute to the fatigue-related performance decrements observed during and after soccer matches. Recent research investigating the relationship between mental fatigue and soccer-specific performance supports this suggestion...
April 5, 2018: Sports Medicine
https://www.readbyqxmd.com/read/29566090/aerobic-fitness-in-professional-soccer-players-after-anterior-cruciate-ligament-reconstruction
#4
Adriano Marques de Almeida, Paulo Roberto Santos Silva, André Pedrinelli, Arnaldo J Hernandez
Although anterior cruciate ligament (ACL) reconstruction is considered a successful procedure in restoring knee stability, few studies have addressed the issue of aerobic capacity after ACL surgery. Soccer players need technical, tactical and physical skills to succeed, such as good knee function and aerobic capacity. Our purpose is to evaluate aerobic fitness in ACL injured professional football players and six months after ACL reconstruction compared to a control group. Twenty athletes with ACL injury were evaluated and underwent ACL reconstruction with hamstrings autograft, and were compared to twenty healthy professional soccer players...
2018: PloS One
https://www.readbyqxmd.com/read/29549745/exploring-the-effects-of-mental-and-muscular-fatigue-in-soccer-players-performance
#5
Diogo Coutinho, Bruno Gonçalves, Del P Wong, Bruno Travassos, Aaron J Coutts, Jaime Sampaio
This study examined the effects of induced mental and muscular fatigue on soccer players' physical activity profile and collective behavior during small-sided games (SSG). Ten youth soccer players performed a 5vs5 SSG under three conditions: a) control, playing without any previous activity; b) muscular fatigue, playing after performing a repeated change-of-direction task; c) mental fatigue, playing after completing a 30 min Stroop color-word task. Players' positional data was used to compute time-motion and tactical-related variables...
April 2018: Human Movement Science
https://www.readbyqxmd.com/read/29541136/physical-and-physiological-demands-of-futsal
#6
REVIEW
Naser Naser, Ajmol Ali, Paul Macadam
Futsal, the 5-a-side version of soccer (i.e. 1 goalkeeper and 4 outfield players), was introduced in 1930 and continues to grow in popularity around the world. Competitive games comprise of two 20-min periods of high-intensity and intermittent activities requiring substantial physical, tactical, and technical efforts from the players. A greater understanding of the physical and skill requirements will aid the development of futsal and enable practitioners to undertake appropriate training regimes for the demands of the sport...
December 2017: Journal of Exercise Science and Fitness
https://www.readbyqxmd.com/read/29462097/detection-of-spatiotemporal-asymmetry-in-pro-level-soccer-players
#7
Nikolas S Knudsen, Thomas B Andersen
Knudsen, NS and Andersen, TB. Detection of spatiotemporal asymmetry in pro level soccer players. J Strength Cond Res 32(3): 798-804, 2018-Several papers have focused on change of direction (COD) asymmetry investigated through standardized tests, and used this information to provide some spatiotemporal insight during games. The aim of this study was to investigate asymmetry in the reachable areas of the players through actual position data from soccer games. Sixteen professional players from the Danish Superliga participated in this study, but 5 were excluded because of lack of participation throughout the investigated games...
March 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29400614/coach-ratings-of-skills-and-their-relations-to-practice-play-and-successful-transitions-from-youth-elite-to-adult-professional-status-in-soccer
#8
David T Hendry, A Mark Williams, Nicola J Hodges
Elite soccer players (~15 yr) from professional academies in the UK were rated on technical, tactical, physical and creative skills by coaches at time 1 (T1). Players estimated accumulated hours in soccer practice (coach-led activities) and play (self-led activities) during childhood. Coach-ratings were again collected 2.5 yr later (T2) for players that received a professional contract (~17 yr). Adult-professional status was determined at T3 (~ 20 yr). Skill ratings distinguished across the three "future" groups (academy-only, youth-professional only and adult-professional), for all but creative skill...
February 5, 2018: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29389694/acute-effects-of-ballistic-vs-passive-static-stretching-involved-in-a-pre-match-warm-up-regarding-vertical-jump-and-linear-sprint-performance-in-soccer-players
#9
Samuel López Mariscal, Víctor Sánchez Garcia, José Carlos Fernández-García, Eduardo Sáez de Villarreal
The purpose of this study was to compare the effects of introducing passive static and ballistic stretching in a standard soccer match warm-up. The variables addressed were the Counter Movement Jump (CMJ), Abalakov jump and the 40 m linear sprint. The sample was composed of 33 male subjects, divided in two age groups. U16 and adult players formed the groups, in order to cross check if there were differences between them. Each group was further subdivided into two groups regarding the type of stretching carried out during the stretching phase...
January 30, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29351500/differential-learning-as-a-key-training-approach-to-improve-creative-and-tactical-behavior-in-soccer
#10
Sara Santos, Diogo Coutinho, Bruno Gonçalves, Wolfgang Schöllhorn, Jaime Sampaio, Nuno Leite
PURPOSE: The aim of this study was to identify the effects of a differential-learning program, embedded in small-sided games, on the creative and tactical behavior of youth soccer players. Forty players from under-13 (U13) and under-15 (U15) were allocated into control and experimental groups and were tested using a randomized pretest to posttest design using small-sided games situations. METHOD: The experimental group participated in a 5-month differential-learning program embodied in small-sided games situations, while the control group participated in a typical small-sided games training program...
March 2018: Research Quarterly for Exercise and Sport
https://www.readbyqxmd.com/read/29351166/the-neuromuscular-biochemical-endocrine-and-mood-responses-to-small-sided-games-training-in-professional-soccer
#11
Sparkes W, Turner An, Weston M, Russell M, Johnston Mj, Kilduff Lp
The 24h responses to small-sided games (SSG) soccer training were characterized. Professional soccer players (n=16) performed SSG's (4vs4 + goalkeepers; 6x7-min, 2-min inter-set recovery) with performance (peak-power output, PPO; jump height, JH), physiological (blood creatine kinase: CK, lactate; salivary testosterone, cortisol), and mood measures collected before (baseline), and after (immediately; 0h, +2h, +24h). For PPO and JH, possibly small-moderate reductions occurred at 0h (-1.1W·kg; ±0.9W·kg, -3...
January 17, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29345547/are-current-physical-match-performance-metrics-in-elite-soccer-fit-for-purpose-or-is-the-adoption-of-an-integrated-approach-needed
#12
Paul S Bradley, Jack D Ade
Time-motion analysis is a valuable data-collection technique used to quantify the physical match performance of elite soccer players. For over 40 years researchers have adopted a 'traditional' approach when evaluating match demands by simply reporting the distance covered or time spent along a motion continuum of walking through to sprinting. This methodology quantifies physical metrics in isolation without integrating other factors and this ultimately leads to a one-dimensional insight into match performance...
January 18, 2018: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29339995/physical-performance-and-anthropometric-characteristics-of-male-south-african-university-soccer-players
#13
Alliance Kubayi, Yvonne Paul, Prescott Mahlangu, Abel Toriola
Soccer is the most popular sport worldwide. Despite its global acclaim, scientific studies of soccer have tended to focus on tactics and techniques, thereby neglecting the physical and physiological profile of the players. Therefore, the purpose of this study was to examine physical and anthropometric characteristics of male South African university soccer players. Twenty-seven male soccer players aged 19 to 24 (mean age: 22.1 years; s = 1.5 years) volunteered to participate in the study. The results showed that goalkeepers (77...
December 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/29339991/multivariate-profiles-of-selected-versus-non-selected-elite-youth-brazilian-soccer-players
#14
Rodrigo Aquino, Isabella S Alves, Maickel B Padilha, Filipe Casanova, Enrico F Puggina, José Maia
This study determined whether a multivariate profile more effectively discriminated selected than non-selected elite youth Brazilian soccer players. This examination was carried out on 66 youth soccer players (selected, n = 28, mean age 16.3 ± 0.1; non-selected, n = 38, mean age 16.7 ± 0.4) using objective instruments. Multivariate profiles were assessed through anthropometric characteristics, biological maturation, tactical-technical skills, and motor performance. The Student's t-test identified that selected players exhibited significantly higher values for height (t = 2...
December 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/29299878/talent-identification-and-development-in-male-football-a-systematic-review
#15
REVIEW
Hugo Sarmento, M Teresa Anguera, Antonino Pereira, Duarte Araújo
BACKGROUND: Expertise has been extensively studied in several sports over recent years. The specificities of how excellence is achieved in Association Football, a sport practiced worldwide, are being repeatedly investigated by many researchers through a variety of approaches and scientific disciplines. OBJECTIVE: The aim of this review was to identify and synthesise the most significant literature addressing talent identification and development in football. We identified the most frequently researched topics and characterised their methodologies...
April 2018: Sports Medicine
https://www.readbyqxmd.com/read/29243038/what-performance-analysts-need-to-know-about-research-trends-in-association-football-2012-2016-a-systematic-review
#16
REVIEW
Hugo Sarmento, Filipe Manuel Clemente, Duarte Araújo, Keith Davids, Allistair McRobert, António Figueiredo
BACKGROUND: Evolving patterns of match analysis research need to be systematically reviewed regularly since this area of work is burgeoning rapidly and studies can offer new insights to performance analysts if theoretically and coherently organized. OBJECTIVE: The purpose of this paper was to conduct a systematic review of published articles on match analysis in adult male football, identify and organize common research topics, and synthesize the emerging patterns of work between 2012 and 2016, according to the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines...
April 2018: Sports Medicine
https://www.readbyqxmd.com/read/29220620/mediating-peer-teaching-for-learning-games-an-action-research-intervention-across-three-consecutive-sport-education-seasons
#17
Cláudio Farias, Isabel Mesquita, Peter A Hastie, Toni O'Donovan
PURPOSE: The purpose of this study was to provide an integrated analysis of a teacher's peer-teaching mediation strategies, the student-coaches' instruction, and the students' gameplay development across 3 consecutive seasons of sport education. METHOD: Twenty-six 7th-grade students participated in 3 consecutive sport education seasons of invasion games (basketball, handball, and soccer). The research involved 3 action research cycles, 1 per season, and each cycle included the processes of planning, acting and monitoring, reflecting, and fact finding...
March 2018: Research Quarterly for Exercise and Sport
https://www.readbyqxmd.com/read/29125029/match-derived-relative-pitch-area-changes-the-physical-and-team-tactical-performance-of-elite-soccer-players-in-small-sided-soccer-games
#18
Sigrid B H Olthof, Wouter G P Frencken, Koen A P M Lemmink
Small-sided games (SSGs) are used in training sessions to prepare for full-sized matches. For the same number of players, smaller pitch sizes result in decreased physical performance and shorter interpersonal distances. A relative pitch area derived from the full-sized match results in larger pitch sizes and this may increase the fit between SSGs and full-sized matches. This study aimed to investigate SSGs with a traditional small pitch and a match-derived relative pitch area in youth elite soccer players. Four age categories (under-13, under-15, under-17 and under-19) played 4 vs...
July 2018: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29058465/positional-synchronization-affects-physical-and-physiological-responses-to-preseason-in-professional-football-soccer
#19
Hugo Folgado, Bruno Gonçalves, Jaime Sampaio
This study aimed to identify changes in tactical, physical and physiological performances in large-sided games during the preseason of elite footballers. Thirty professional football players participated in several GK+8vs.8+GK large-sided games across the first four weeks of the season. Players were monitored by GPS units and heart rate monitors to quantify physical, physiological and tactical performances. The variables were compared according to the preseason period, players' positioning and professional experience...
January 2018: Research in Sports Medicine
https://www.readbyqxmd.com/read/28983273/mental-fatigue-and-spatial-references-impair-soccer-players-physical-and-tactical-performances
#20
Diogo Coutinho, Bruno Gonçalves, Bruno Travassos, Del P Wong, Aaron J Coutts, Jaime E Sampaio
This study examined the effects of mental fatigue and additional corridor and pitch sector lines on players' physical and tactical performances during soccer small-sided games. Twelve youth players performed four Gk+6vs6+Gk small-sided games. Prior to the game, one team performed a motor coordination task to induce mental fatigue, while the other one performed a control task. A repeated measures design allowed to compare players' performances across four conditions: (a) with mental fatigue against opponents without mental fatigue in a normal pitch (MEN), (b) with mental fatigue on a pitch with additional reference lines (#MEN); (c) without mental fatigue against mentally fatigued opponents on a normal pitch (CTR); and (d) without mental fatigue on a pitch with reference lines (#CTR)...
2017: Frontiers in Psychology
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