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https://www.readbyqxmd.com/read/28544170/hamstring-injury-prevention-in-soccer-before-or-after-training
#1
Ric Lovell, Michael Knox, Matthew Weston, Jason C Siegler, Scott Brennan, Paul W M Marshall
We examined the effects of a 12-week program of Nordic hamstring exercises (NHE), administered before or after football training, upon eccentric hamstring strength, muscle activity, and architectural adaptations. Amateur soccer players were randomized into 3 groups. The control group (CON; n=11) undertook core stability exercises, whereas a periodized NHE program was delivered either before (NHEBEF ; n=10) or after (NHEAFT ; n=14) bi-weekly training sessions. Outcome measures included peak torque and concomitant normalized peak surface electromyography signals (sEMG) of the biceps femoris (BF) and medial hamstring (MH) muscles during knee flexor maximal eccentric contractions, performed at 30°·s(-1) ...
May 24, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28538299/maximal-sprinting-speed-of-elite-soccer-players-during-training-and-matches
#2
Leo Djaoui, Karim Chamari, Adam L Owen, Alexandre Dellal
Djaoui, L, Chamari, K, Owen, A, and Dellal, A. Maximal sprinting speed of elite soccer players during training and matches. J Strength Cond Res 31(6): 1509-1517, 2017-The aim of the present study was to compare (a) the maximal sprinting speed (MSS) attained by soccer players during matches (MSSmatch) according to their level of play (professional first French division vs. elite amateur fourth French division) and the playing positions and (b) the MSS attained by professional soccer players during 14 different types of small-sided games (SSG, MSSSSG) and match-play...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28538298/quantifying-the-high-speed-running-and-sprinting-profiles-of-elite-female-soccer-players-during-competitive-matches-using-an-optical-player-tracking-system
#3
Jocelyn K Mara, Kevin G Thompson, Kate L Pumpa, Stuart Morgan
Mara, JK, Thompson, KG, Pumpa, KL, and Morgan, S. Quantifying the high-speed running and sprinting profiles of elite female soccer players during competitive matches using an optical player tracking system. J Strength Cond Res 31(6): 1500-1508, 2017-The aim of this study was to determine the high-speed running and sprinting profiles of elite female soccer players during competitive matches using a new Optical Player Tracking system. Eight stationary video cameras were positioned at vantage points surrounding the soccer field so that when each camera view was combined, the entire field could be viewed simultaneously...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28538296/exercise-intensity-and-technical-demands-of-small-sided-soccer-games-for-under-12-and-under-14-players-effect-of-area-per-player
#4
Domenico Martone, Moreno Giacobbe, Adriano Capobianco, Esther Imperlini, Annamaria Mancini, Mario Capasso, Pasqualina Buono, Stefania Orrù
Martone, D, Giacobbe, M, Capobianco, A, Imperlini, E, Mancini, A, Capasso, M, Buono, P, and Orrù, S. Exercise intensity and technical demands of small-sided soccer games for under-12 and under-14 players: Effect of area per player. J Strength Cond Res 31(6): 1486-1492, 2017-The aim of this study was to evaluate the effects of 6 different areas per player (AP) on exercise intensity (EI) measured during small-sided games (SSGs) and expressed as percentage of maximal heart rate (%MHR) and technical actions (TAs) involvement with the ball, crosses, headers, tackles, shots on goal, dribbling, passing, and target passing-in U-12 and U-14 soccer players during SSGs...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28538295/relationship-between-internal-load-indicators-and-changes-on-intermittent-performance-after-the-preseason-in-professional-soccer-players
#5
Miguel A Campos-Vazquez, Francisco J Toscano-Bendala, José C Mora-Ferrera, Luis J Suarez-Arrones
Campos-Vazquez, MA, Toscano-Bendala, FJ, Mora-Ferrera, JC, and Suarez-Arrones, LJ. Relationship between internal load indicators and changes on intermittent performance after the preseason in professional soccer players. J Strength Cond Res 31(6): 1477-1485, 2017-The aim of this study was to examine the effects of accumulated internal training load (ITL) during the preseason (4 weeks) on changes in the intermittent performance, in a professional soccer team. Twelve professionals soccer players (Mean ± SD age: 27...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28538294/effects-of-different-combinations-of-strength-power-and-plyometric-training-on-the-physical-performance-of-elite-young-soccer-players
#6
Ronaldo Kobal, Irineu Loturco, Renato Barroso, Saulo Gil, Rogério Cuniyochi, Carlos Ugrinowitsch, Hamilton Roschel, Valmor Tricoli
Kobal, R, Loturco, I, Barroso, R, Gil, S, Cuniyochi, R, Ugrinowitsch, C, Roschel, H, and Tricoli, V. Effects of different combinations of strength, power, and plyometric training on the physical performance of elite young soccer players. J Strength Cond Res 31(6): 1468-1476, 2017-The combination of strength (ST) and plyometric training (PT) has been shown to be effective for improving sport-specific performance. However, there is no consensus about the most effective way to combine these methods in the same training session to produce greater improvements in neuromuscular performance of soccer players...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28533597/immediate-effect-of-ankle-balance-taping-on-dynamic-and-static-balance-of-soccer-players-with-acute-ankle-sprain
#7
Young-Jun Shin, Myoung-Kwon Kim
[Purpose] This study aimed to evaluate the immediate effect of ankle balance taping on balance ability of soccer players with acute ankle sprain. [Subjects and Methods] This study was conducted with 16 subjects who were diagnosed with ankle sprain. A cross-over randomized design was used. Each subject performed three interventions in a random order. Subjects were randomly assigned to an ankle balance taping, placebo taping, and no taping. For dynamic and static balance, ability was measured using BIORescue (RM Ingenierie, Rodes, France)...
April 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28516234/assessing-long-term-return-to-play-after-hip-arthroscopy-in-football-players-evaluating-risk-factors-for-good-prognosis
#8
D Barastegui, R Seijas, P Alvarez-Diaz, E Rivera, E Alentorn-Geli, G Steinbacher, X Cuscó, R Cugat
PURPOSE: Groin pain is the third most common disease in football players and has often been associated with hip pathology such as femoroacetabular impingement and labral lesions. Hip arthroscopy offers possibilities of function restoration via minimally invasive procedures. The aim of this study is to evaluate professional football player's injuries and their return to play after hip arthroscopy for FAI and labral injuries. METHODS: Patients that underwent hip arthroscopy between 2009 and 2014 were selected retrospectively...
May 17, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28515975/prospective-functional-performance-testing-and-relationship-to-lower-extremity-injury-incidence-in-adolescent-sports-participants
#9
Joseph Smith, Nick DePhillipo, Iris Kimura, Morgan Kocher, Ronald Hetzler
BACKGROUND: Due to the high number of adolescent athletes and subsequent lower extremity injuries, improvements of injury prevention strategies with emphasis on clinic-based and practical assessments are warranted. PURPOSE: The purpose of this study was to prospectively investigate if a battery of functional performance tests (FPT) could be used as a preseason-screening tool to identify adolescent athletes at risk for sports-related acute lower extremity injury via comparison of injured and uninjured subjects...
April 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/28515972/determination-of-clinically-relevant-differences-in-frontal-plane-hop-tests-in-women-s-collegiate-basketball-and-soccer-players
#10
Kelly Hardesty, Eric J Hegedus, Kevin R Ford, Anh-Dung Nguyen, Jeffrey B Taylor
BACKGROUND: ACL injury prevention programs are less successful in female basketball players than in soccer players. Previous authors have identified anthropometric and biomechanical differences between the athletes and different sport-specific demands, including a higher frequency of frontal plane activities in basketball. Current injury risk screening and preventive training practices do not place a strong emphasis on frontal plane activities. The medial and lateral triple hop for distance tests may be beneficial for use in the basketball population...
April 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/28514921/a-study-of-relationships-among-technical-tactical-physical-parameters-and-final-outcomes-in-elite-soccer-matches-as-analyzed-by-a-semiautomatic-video-tracking-system
#11
Cristoforo Filetti, Bruno Ruscello, Stefano D'Ottavio, Vito Fanelli
The performance of a soccer team depends on many factors such as decision-making, cognitive and physical skills, and dynamic ever-changing space-time interactions between teammate and opponents in relation to the ball. Seventy ( n = 70) matches of the Italian SERIE A season 2013-2014 were investigated to analyze the mean performance of 360 players in terms of physical (physical efficiency index; PEI) and technical-tactical (technical efficiency index; TEI) standpoints. Using a semiautomatic video analysis system that has incorporated new parameters able to measure technical-tactical and physical efficiency (Patent IB2010/002593, 2011-ISA), the correlation between these new variables and how much it relates to the likelihood of winning were verified...
June 2017: Perceptual and Motor Skills
https://www.readbyqxmd.com/read/28513281/short-term-effects-of-kinesio-taping-on-muscle-recruitment-order-during-a-vertical-jump-a-pilot-study
#12
Guillermo Mendez-Rebolledo, Rodrigo Ramirez-Campillo, Eduardo Guzman-Muñoz, Valeska Gatica-Rojas, Alexis Dabanch-Santis, Francisco Diaz-Valenzuela
CONTEXT: Kinesio taping is commonly used in sports and rehabilitation settings with the aim of prevention and treatment of musculoskeletal injuries. However, limited evidence exists regarding the effects of 24 and 72 h of kinesio taping on trunk and lower limb neuromuscular and kinetic performance during a vertical jump. OBJECTIVE: The purpose of this study was to analyze the short-term effects of kinesio taping on the height and ground reaction force during a vertical jump, in addition to trunk and lower limb muscle latency and recruitment order...
May 17, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28508338/fluid-balance-in-team-sport-athletes-and-the-effect-of-hypohydration-on-cognitive-technical-and-physical-performance
#13
REVIEW
Ryan P Nuccio, Kelly A Barnes, James M Carter, Lindsay B Baker
Sweat losses in team sports can be significant due to repeated bursts of high-intensity activity, as well as the large body size of athletes, equipment and uniform requirements, and environmental heat stress often present during training and competition. In this paper we aimed to: (1) describe sweat losses and fluid balance changes reported in team sport athletes, (2) review the literature assessing the impact of hypohydration on cognitive, technical, and physical performance in sports-specific studies, (3) briefly review the potential mechanisms by which hypohydration may impact team sport performance, and (4) discuss considerations for future directions...
May 15, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28503527/postactivation-potentiation-in-elite-young-soccer-players
#14
Adriano Titton, Emerson Franchini
The aim of this study was to investigate the acute effects of 16 different combinations to cause the postactivation potentiation (PAP) in elite young soccer players. Squat exercise in 4 different intensities (40%, 60%, 80%, and 100% one-repetition maximum [1RM]) was performed and its effects were evaluated in the performance of countermovement jump (CMJ), after 4 different recovery times (1, 3, 5, and 10 min). For this purpose, 25 young soccer players, underwent five experimental sessions. At the first session the control to determine 1RM in half-squat was carried out...
April 2017: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/28498791/the-influence-of-successive-matches-on-match-running-performance-during-an-under-23-international-soccer-tournament-the-necessity-of-individual-analysis
#15
Matthew C Varley, Valter Di Salvo, Mattia Modonutti, Warren Gregson, Alberto Mendez-Villanueva
This study investigated the effects of successive matches on match-running in elite under-23 soccer players during an international tournament. Match-running data was collected using a semi-automated multi-camera tracking system during an international under-23 tournament from all participating outfield players. Players who played 100% of all group stage matches were included (3 matches separated by 72 h, n = 44). Differences in match-running performance between matches were identified using a generalised linear mixed model...
May 12, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28497280/a-minimal-soft-tissue-damage-approach-of-spondylolysis-repair-in-athletes-preliminary-report
#16
Łukasz Bartochowski, Wojciech Jurasz, Jacek Kruczyński
PURPOSE AND HYPOTHESIS: Both spondylolysis and spondylolisthesis come in second place in the causes of pain among athletes. Treatment options include both conservative management and different operative methods. Athletes and adolescents are groups where the priority is to protect tissues from perioperative damage. OBJECTIVE: We present our modification of the Buck's, direct pars repair method, which we believe offers maximum protection of tissues. We used the modified surgical method in young, competitive athletes, in whom non-surgical treatment was not effective...
May 11, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28492862/establishing-baseline-normative-values-for-the-child-sport-concussion-assessment-tool
#17
M Alison Brooks, Traci R Snedden, Benjamin Mixis, Scott Hetzel, Timothy A McGuine
Importance: The Child Sport Concussion Assessment Tool (SCAT3) is a postconcussion sideline assessment tool measuring symptoms, cognition, and balance in preadolescent children. Minimal normative baseline data exist to aid decision making in clinical and athletic settings. Objective: To collect normative baseline data for the Child SCAT3 in a large cohort of young athletes. Design, Setting, and Participants: A cross-sectional study was conducted from May 31 to August 12, 2014, at various sporting events (basketball, soccer, baseball, and swimming) in Central Wisconsin among children 5 to 13 years of age who were English-speaking and did not report a lower leg injury within the past 2 months or a concussion within the past month...
May 8, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/28489955/isometric-and-dynamic-strength-and-neuromuscular-attributes-as-predictors-of-vertical-jump-performance-in-11%C3%A2-13-year-old-male-athletes
#18
Brandon John McKinlay, Phillip J Wallace, Raffy Dotan, Devon Long, Craig Tokuno, David A Gabriel, Bareket Falk
In explosive contractions, neural activation is a major factor in determining the rate of torque development, while the latter is an important determinant of jump performance. However, the contribution of neuromuscular activation and rate of torque development to jump performance in children and youth is unclear. PURPOSE: To examine the relationships between the rate of neuromuscular activation, peak torque, rate of torque development, and jump performance in young male athletes. METHODS: Forty-one 12...
May 10, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28488835/incidence-of-injury-and-illness-in-south-african-professional-male-football-players-a-prospective-cohort-study
#19
Helen Bayne, Martin Schwellnus, Dina Janse Van Rensburg, Jhano Botha, Lervasen Pillay
BACKGROUND: Medical illnesses and sports-related injuries both have an effect on athlete health and performance. Epidemiology of injury and illness has been extensively researched during international football tournaments and the European football season. Reports on injury location and severity differ across geographical regions, and there is limited information on injury epidemiology in African football leagues. No studies have investigated the illness burden in football in Africa. METHODS: This was a prospective cohort study involving two football teams over the 10- month duration of the 2015/16 Premier Soccer League in South Africa...
May 9, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28488830/match-outcome-and-sprinting-activities-in-match-play-by-elite-german-soccer-players
#20
Marcin Andrzejewski, Paweł Chmura, Marek Konefał, Edward Kowalczuk, Jan Chmura
PURPOSE: The aim of the study was to examine the ways playing positions and match outcome (i.e. win, draw, loss) affect the sprint distance covered and the number of sprints performed by German Bundesliga soccer players. METHODS: Match performance data were collected from 350 soccer players competing in the German Bundesliga during the 2014/2015 domestic season. A total of 4393 individual match observations were undertaken on outfield players. The analysis was carried using the Impire AG motion analysis system with records of all movements of players in all the 306 matches...
May 9, 2017: Journal of Sports Medicine and Physical Fitness
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