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https://www.readbyqxmd.com/read/29786628/influence-of-team-s-rank-on-soccer-referees-external-and-internal-match-loads-during-official-matches
#1
Daniel Castillo, Carlo Castagna, Jesús Cámara, Aitor Iturricastillo, Javier Yanci
Castillo, D, Castagna, C, Cámara, J, Iturricastillo, A, and Yanci, J. Influence of team's rank on soccer referees' external and internal match loads during official matches. J Strength Cond Res 32(6): 1715-1722, 2018-The aim was to examine the external and the internal match loads (ML) of field referees (FRs) attending teams of different ranking during championship matches. Twenty FR who officiated in 30 official soccer matches (30 observations) participated in our study. The criteria for allocating the soccer referees' ML results were based on the teams' final league positions as follows: matches performed by Top 10 teams (TOP10), matches performed by bottom 10 teams (BOT10), and matches played among TOP10 and BOT10 teams (MIXED)...
June 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29786627/association-of-physical-and-technical-activities-with-partial-match-status-in-a-soccer-professional-team
#2
Wassim Moalla, Mohamed Saieffedin Fessi, Emna Makni, Alexandre Dellal, Cristoforo Filetti, Valter Di Salvo, Karim Chamari
Moalla, W, Fessi, MS, Makni, E, Dellal, A, Filetti, C, Di Salvo, V, and Chamari, K. Association of physical and technical activities with partial match status in a soccer professional team. J Strength Cond Res 32(6): 1708-1714, 2018-The purpose of this study was to examine the association between physical and technical activities and partial match status (winning, drawing, or losing) in a professional soccer team over 2 seasons. Physical and technical activities of 52 official matches were collected and analyzed at each 15-minute interval, for each half (45 minutes), and full match (90 minutes) using a multiple-camera computerized tracking system...
June 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29786626/observation-of-women-soccer-players-physiology-during-a-single-season
#3
Kathleen M Paulsen, Cory L Butts, Brendon P McDermott
Paulsen, KM, Butts, CL, and McDermott, BP. Observation of women soccer players' physiology during a single season. J Strength Cond Res 32(6): 1702-1707, 2018-The purpose of this study was to observe heart rate (HR) responses in match settings over the course of a conference season in National Collegiate Athletic Association Division I women's soccer. Twenty-one female collegiate soccer players were provided a HR monitor and instructed to wear it for the duration of match play. Player positions included 6 defenders (DEF), 6 midfielders (MID), and 9 forwards (FWD)...
June 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29781940/alpha-actinin-3-r577x-polymorphism-influences-muscle-damage-and-hormonal-responses-after-a-soccer-game
#4
Daniel B Coelho, Eduardo M Pimenta, Izinara C Rosse, Christiano Veneroso, Guilherme De Azambuja Pussieldi, Lenice K Becker, Emerson C Oliveira, Maria R S Carvalho, Emerson Silami-Garcia
Coelho, DB, Pimenta, EM, Rosse, IC, Veneroso, C, Pussieldi, GDA, Becker, LK, De Oliveira, EC, Carvalho, MRS, and Silami-Garcia, E. Alpha-actinin-3 R577X polymorphism influences muscle damage and hormonal responses after a soccer game. J Strength Cond Res XX(X): 000-000, 2018-The purpose of this study was to evaluate indicators of muscle damage and hormonal responses after soccer matches and its relation to alpha-actinin-3 (ACTN3) gene expression (XX vs. RR/RX), considering that the R allele produces alpha-actinin-3 and provides greater muscle strength and power...
May 17, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29780846/epidemiology-of-hip-and-groin-injuries-in-collegiate-athletes-in-the-united-states
#5
Yehuda E Kerbel, Christopher M Smith, John P Prodromo, Michael I Nzeogu, Mary K Mulcahey
Background: Hip and groin pain is a common complaint among athletes. Few studies have examined the epidemiology of hip and groin injuries in collegiate athletes across multiple sports. Purpose: To describe the rates, mechanisms, sex-based differences, and severity of hip/groin injuries across 25 collegiate sports. Study Design: Descriptive epidemiology study. Methods: Data from the 2009-2010 through 2013-2014 academic years were obtained from the National Collegiate Athletic Association Injury Surveillance Program (NCAA ISP)...
May 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29780836/defining-platelet-rich-plasma-usage-by-team-physicians-in-elite-athletes
#6
David E Kantrowitz, Ajay S Padaki, Christopher S Ahmad, T Sean Lynch
Background: The indications for the use of platelet-rich plasma (PRP) are vaguely defined despite the frequency of its use as a treatment for athletes. While select studies have advocated for its efficacy, the majority of orthopaedic research conducted on the topic has been equivocal. Purpose: To define the use of PRP in elite athletes by team physicians from professional sports leagues. Study Design: Cross-sectional study. Methods: A survey assessing treatment timing, usage patterns, indications, and complications was generated by fellowship-trained sports medicine orthopaedic surgeons...
April 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29776844/psychosocial-predictors-and-psychological-prevention-of-soccer-injuries-a-systematic-review-and-meta-analysis-of-the-literature
#7
REVIEW
Maamer Slimani, Nicola Luigi Bragazzi, Hela Znazen, Armin Paravlic, Fairouz Azaiez, David Tod
OBJECTIVES: To examine (a) the relationships between the psychosocial risk factors and injury rates and (b) the effects of psychological-based prevention interventions on the injury risk of soccer players. DESIGN: Scholarly electronic databases (PubMed/MEDLINE, Google Scholar, Scopus) were searched on 1 January 2017, complemented by manual searches of bibliographies. SETTING: Systematic review and meta-analysis. PARTICIPANTS: We identified 13 eligible studies, including a total of 1149 injured soccer players aged between 14 and 36 years...
May 15, 2018: Physical Therapy in Sport
https://www.readbyqxmd.com/read/29776843/a-review-advocating-caution-with-major-league-soccer-expansion-and-investment-in-more-rehabilitation-professionals
#8
REVIEW
Cody J Mansfield, Carol Ferkovic-Mack, Julie Eibensteiner, Christy Zwolski
BACKGROUND AND PURPOSE: Major League Soccer (MLS) has aggressively expanded from 10 teams to 23 teams. With the addition of more teams, the league will have to dictate a schedule that maximizes the league's popularity, while also maintaining the health of the players. A longer season and congested game schedule could increase the risk of injury for players. The purpose of this commentary is to make recommendations for the prevention of injuries among MLS players with respect to proposed league expansion...
May 9, 2018: Physical Therapy in Sport
https://www.readbyqxmd.com/read/29776815/strength-recovery-after-anterior-cruciate-ligament-reconstruction-with-quadriceps-tendon-versus-hamstring-tendon-autografts-in-soccer-players-a-randomized-controlled-trial
#9
Jose Luis Martin-Alguacil, Manuel Arroyo-Morales, Jose Luis Martín-Gomez, Isidro Manuel Monje-Cabrera, Juan F Abellán-Guillén, Francisco Esparza-Ros, Mario Lozano Lozano, Irene Cantarero-Villanueva
BACKGROUND: The comparison between HT and QT grafts in strength recovery and function after an ACLR is scarce in the literature. METHODS: A total of 56 participants were enrolled in this randomized controlled trial and placed into two groups: HT or QT. The hamstring/quadriceps (H/Q) ratio was the primary end-point measured with a Genu-3 dynamometer. Peak torque, functional assessment (Lysholm knee scoring scale and Cincinnati Knee Rating System), and anteroposterior laxity (KT-2000™ arthrometer) were also assessed...
May 15, 2018: Knee
https://www.readbyqxmd.com/read/29776480/concussion-symptom-prevalence-severity-and-trajectory-implications-for-nursing-practice
#10
Gail Macartney, Valérie Simoncic, Kristian Goulet, Mary Aglipay
PURPOSE: The purpose of this study was to describe the symptom severity and trajectory in concussed children who were followed during a one year period at a concussion clinic. DESIGN AND METHODS: A retrospective chart review was completed to describe the symptom trajectory up to three months during the recovery. RESULTS: One hundred and thirty-six patients were included (74 female, 62 male) with a median age of 15.4years (range 13-17). The most common mechanisms of injury included: falls (19...
May 2018: Journal of Pediatric Nursing
https://www.readbyqxmd.com/read/29775081/reference-values-of-left-heart-echocardiographic-dimensions-and-mass-in-male-peri-pubertal-athletes
#11
Elena Cavarretta, Francesco Maffessanti, Fabio Sperandii, Emanuele Guerra, Federico Quaranta, Antonia Nigro, Monia Minati, Marco Rebecchi, Chiara Fossati, Leonardo Calò, Fabio Pigozzi
Background Several articles have proposed reference values in healthy paediatric subjects, but none of them has evaluated a large population of healthy trained adolescents. Design The study purpose was to establish normal echocardiographic measurements of left heart (aortic root, left atrium and left ventricular dimensions and mass) in relation to age, weight, height, body mass index, body surface area and training hours in this specific population. Methods We retrospectively evaluated 2151 consecutive, healthy, peri-pubertal athletes (100% male, mean age 12...
January 1, 2018: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/29772188/hamstring-and-ankle-flexibility-deficits-are-weak-risk-factors-for-hamstring-injury-in-professional-soccer-players-a-prospective-cohort-study-of-438-players-including-78-injuries
#12
Nicol van Dyk, Abdulaziz Farooq, Roald Bahr, Erik Witvrouw
BACKGROUND: Hamstring injuries remain a significant injury burden in sports such as soccer that involve high-speed running. It has repeatedly been identified as the most common noncontact injury in elite male soccer, representing 12% of all injuries. As the incidence of hamstring injuries remains high, investigations are aimed at better understanding how to prevent hamstring injuries. Stretching to improve flexibility is commonly used in elite-level sports, but risk factor studies have reported contradicting results, leading to unclear conclusions regarding flexibility as a risk factor for hamstring injuries...
May 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29769822/maturity-status-strongly-influences-the-relative-age-effect-in-international-elite-under-9-soccer
#13
Lisa Müller, Josef Gehmaier, Christoph Gonaus, Christian Raschner, Erich Müller
The aim of the study was to assess the role of the relative age effect (RAE) and to investigate the influence of the biological maturity status on the RAE in international under-9 soccer. The birth dates of 222 male participants of the U9 Eurochampionship Soccer Tournament in Vienna in 2016 were analyzed and divided into four relative age quarters (Q1-Q4) and the biological maturity status was assessed with the age at peak height velocity (APHV) method. Based on the mean±standard deviation of the APHV, the athletes were divided into three groups of maturity: early, normal and late maturing...
June 2018: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/29765348/numerical-affordance-influences-action-execution-a-kinematic-study-of-finger-movement
#14
Rosa Rugani, Sonia Betti, Luisa Sartori
Humans represent symbolic numbers as oriented from left to right: the mental number line (MNL). Up to now, scientific studies have mainly investigated the MNL by means of response times. However, the existing knowledge on the MNL can be advantaged by studies on motor patterns while responding to a number. Cognitive representations, in fact, cannot be fully understood without considering their impact on actions. Here we investigated whether a motor response can be influenced by number processing. Participants seated in front of a little soccer goal...
2018: Frontiers in Psychology
https://www.readbyqxmd.com/read/29761235/characteristics-of-sports-and-recreation-related-emergency-department-visits-among-school-age-children-and-youth-in-north-carolina-2010-2014
#15
Katherine J Harmon, Scott K Proescholdbell, Johna Register-Mihalik, David B Richardson, Anna E Waller, Stephen W Marshall
BACKGROUND: Sports and recreational activities are an important cause of injury among children and youth, with sports-related traumatic brain injuries (TBIs) being of particular concern given the developing brain. This paper reports the characteristics of sport and recreation-related (SR) emergency department (ED) visits among school-age children and youth in a statewide population. METHODS: This study included all injury-related visits made to all North Carolina 24/7 acute-care civilian hospital-affiliated EDs by school-age youth, 5-18 years of age, during 2010-2014 (N = 918,662)...
May 15, 2018: Injury Epidemiology
https://www.readbyqxmd.com/read/29759008/thin-slices-of-athletes-nonverbal-behavior-give-away-game-location-testing-the-territoriality-hypothesis-of-the-home-game-advantage
#16
Philip Furley, Geoffrey Schweizer, Daniel Memmert
The present research investigated whether perceivers could detect who is playing at home or away in soccer matches based on thin slices of professional (Experiment 1) and amateur (Experiment 3) athletes' nonverbal behavior prior to the match and whether perceivers rated athletes playing at home relatively higher on behavioral dimensions (Experiments 2 and 3) linked to territoriality. In Experiment 1 ( N = 80), participants watched short videos depicting soccer players prior to a UEFA Champions League match and rated whether athletes were more likely to be playing at home or away...
April 2018: Evolutionary Psychology: An International Journal of Evolutionary Approaches to Psychology and Behavior
https://www.readbyqxmd.com/read/29758569/relation-between-iliopsoas-cross-sectional-area-and-kicked-ball-speed-in-soccer-players
#17
Taku Wakahara, Manabu Chiba
This study aimed to investigate the relationship between the maximal anatomical cross-sectional area (ACSA) of the iliopsoas muscle and ball speed in side-foot and instep kicks. The ACSA of the psoas major and iliacus was measured in 29 male collegiate soccer players by using magnetic resonance imaging. They performed maximal side-foot and instep kicks to a stationary ball. The kicked ball speed was measured with a high-speed camera. Ball speed in the side-foot and instep kicks was significantly correlated with body height (side-foot kick: r=0...
May 14, 2018: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/29758508/the-efficacy-of-elastic-therapeutic-tape-variations-on-measures-of-ankle-function-and-performance
#18
Christopher Michael Brogden, Kelly Marrin, Richard Michael Page, Matt Greig
OBJECTIVES: To investigate the effects of different variations of elastic therapeutic taping (ETT) on tests used to screen for ankle injury risk and function. DESIGN: Randomized crossover. SETTING: Laboratory. PARTICIPANTS: Twelve professional male soccer players completed three experimental trials: No tape (NT), RockTape™ (RT), and Kinesio™ Tape (KT) applied to the ankle complex. OUTCOME MEASURES: Clinical and functional ankle screening tests were used to assess the effects of ETT on measures of joint position sense, postural stability and ground reaction forces...
April 23, 2018: Physical Therapy in Sport
https://www.readbyqxmd.com/read/29758507/recovery-practices-in-division-1-collegiate-athletes-in-north-america
#19
Andrew Murray, Hugh Fullagar, Anthony P Turner, John Sproule
OBJECTIVES: Establish current practice and attitudes towards recovery in a group of Division-1 Collegiate athletes from North America. DESIGN: A 16-item questionnaire was administered via custom software in an electronic format. PARTICIPANTS: 152 student athletes from a Division-1 Collegiate school across 3 sports (Basketball, American Football, Soccer). MAIN OUTCOME MEASURES: The approaches and attitudes to recovery in both training and competition...
May 8, 2018: Physical Therapy in Sport
https://www.readbyqxmd.com/read/29746505/the-effects-of-short-term-detraining-and-retraining-on-physical-fitness-in-elite-soccer-players
#20
Chang Hwa Joo
PURPOSE: The aim of this study was to examine the effects of aerobic high-intensity training with reduced volume and training cessation on body composition and physical fitness after the end of season and the time required to recapture physical fitness with intensified retraining following two weeks of detraining in elite soccer players. METHOD: Twenty male semi-professional soccer players participated in this study. The soccer players were assigned to either a group that completed high-intensity aerobic training (HAT, n = 10) or to a detraining and retraining group (DHAT, n = 10) for a 5-week period immediately after the end of the season...
2018: PloS One
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