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https://www.readbyqxmd.com/read/28360143/return-to-play-after-hamstring-injuries-in-football-soccer-a-worldwide-delphi-procedure-regarding-definition-medical-criteria-and-decision-making
#1
Nick van der Horst, Fjg Backx, Edwin A Goedhart, Bionka Ma Huisstede
There are three major questions about return to play (RTP) after hamstring injuries: How should RTP be defined? Which medical criteria should support the RTP decision? And who should make the RTP decision? The study aimed to provide a clear RTP definition and medical criteria for RTP and to clarify RTP consultation and responsibilities after hamstring injury. The study used the Delphi procedure. The results of a systematic review were used as a starting point for the Delphi procedure. Fifty-eight experts in the field of hamstring injury management selected by 28 FIFA Medical Centres of Excellence worldwide participated...
March 30, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28254746/what-strategies-can-be-used-to-effectively-reduce-the-risk-of-concussion-in-sport-a-systematic-review
#2
REVIEW
Carolyn A Emery, Amanda M Black, Ash Kolstad, German Martinez, Alberto Nettel-Aguirre, Lars Engebretsen, Karen Johnston, James Kissick, David Maddocks, Charles Tator, Mark Aubry, Jiří Dvořák, Shinji Nagahiro, Kathryn Schneider
AIM OR OBJECTIVE: To examine the effectiveness of concussion prevention strategies in reducing concussion risk in sport. DESIGN: Systematic review according to the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analysis) guidelines. DATA SOURCES: Eleven electronic databases searched and hand-search of references from selected studies. ELIGIBILITY CRITERIA FOR SELECTING STUDIES: The following were the study inclusion criteria: (1) contained original human research data; (2) investigated an outcome of concussion or head impact; (3) evaluated a concussion prevention intervention; (4) included sport participants; (5) analytical study designand (6) peer-reviewed...
June 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28239594/subluxation-of-the-cricoarytenoid-joint-after-external-laryngeal-trauma-a-rare-case-and-review-of-the-literature
#3
Eviatar Friedlander, Paula Martínez Pascual, Julia Da Costa Belisario, Daniel Poletti Serafini
Cricoarytenoid joint subluxation is rare condition. There are <200 cases reported in the English literature. The most frequent cause of this condition is a traumatic tracheal intubation which account for approximately 80 % of all cases. The most common symptoms are dysphonia and pain of the anterior region of the neck which appear after upper airway manipulation or cervical trauma. In this report we present a well-documented case of a 31 year old male that was referred to the outpatient clinic because of acute dysphonia and pain that appeared immediately after receiving a blow of a soccer ball...
March 2017: Indian Journal of Otolaryngology and Head and Neck Surgery
https://www.readbyqxmd.com/read/28220500/neuroplus-biofeedback-improves-attention-resilience-and-injury-prevention-in-elite-soccer-players
#4
Aiace Rusciano, Giuliano Corradini, Ivilin Stoianov
Performance and injury prevention in elite soccer players are typically investigated from physical-tactical, biomechanical, and metabolic perspectives. However, executive functions, visuospatial abilities, and psychophysiological adaptability or resilience are also fundamental for efficiency and well-being in sports. Based on previous research associating autonomic flexibility with prefrontal cortical control, we designed a novel integrated autonomic biofeedback training method called Neuroplus to improve resilience, visual attention, and injury prevention...
February 21, 2017: Psychophysiology
https://www.readbyqxmd.com/read/28190999/higher-drop-in-speed-during-a-repeated-sprint-test-in-soccer-players-reporting-former-hamstring-strain-injury
#5
Ola D Røksund, Morten Kristoffersen, Bård E Bogen, Alexander Wisnes, Merete S Engeseth, Ann-Kristin Nilsen, Vegard V Iversen, Silje Mæland, Hilde Gundersen
Aim: Hamstring strain injury is common in soccer. The aim of this study was to evaluate the physical capacity of players who have and have not suffered from hamstring strain injury in a sample of semi-professional and professional Norwegian soccer players in order to evaluate characteristics and to identify possible indications of insufficient rehabilitation. Method: Seventy-five semi-professional and professional soccer players (19 ± 3 years) playing at the second and third level in the Norwegian league participated in the study...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28144414/comparison-of-lateral-abdominal-muscle-thickness-and-cross-sectional-area-of-multifidus-in-adolescent-soccer-players-with-and-without-low-back-pain-a-case-control-study
#6
Pardis Noormohammadpour, Alireza Hosseini Khezri, Paweł Linek, Mohammad Ali Mansournia, Alireza Hassannejad, Ali Younesian, Farzin Farahbakhsh, Ramin Kordi
BACKGROUND: Low back pain (LBP) is a common complaint amongst adolescent athletes. While different studies have shown association between LBP and trunk muscle thickness in the general population, few articles have studied it in adolescent athletes. OBJECTIVES: The aim of this study is to compare lateral abdominal muscle thickness and function, and cross sectional area (CSA) of lumbar multifidus (LM) in adolescent soccer players with and without LBP. METHODS: In total, 28 adolescent soccer players with and without LBP, from the premier league participated in this study...
December 2016: Asian Journal of Sports Medicine
https://www.readbyqxmd.com/read/27966972/role-of-organic-hydrocarbons-in-atmospheric-ice-formation-via-contact-freezing
#7
Kristen N Collier, Sarah D Brooks
An optical ice microscope apparatus equipped with a sealed cooling stage and a CCD camera was used to examine contact freezing events between a water droplet and ice nucleating particles (INP) containing organic hydrocarbons including octacosane, squalane, and squalene. Sample viscosities were measured with a capillary viscometer and compositions were characterized using Fourier transfer infrared spectroscopy with horizontal attenuated total reflectance and Raman microspectroscopy. All of the samples proved to be moderately efficient ice nuclei that induced freezing between -23 and -26 °C, regardless of whether the INP was solid or liquid...
December 29, 2016: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/27735885/effects-of-5-week-pre-season-small-sided-game-based-training-on-repeat-sprint-ability
#8
Alejandro Rodríguez-Fernández, Javier Sánchez Sánchez, José A Rodríguez-Marroyo, David Casamichana, José G Villa
BACKGROUND: Numerous studies have analyzed during competitive season different conditioning programs to improve soccer players' repeat sprint ability (RSA). However, few studies have focused on analyzing what happens with this ability after small-sided-game- (SSG-) -based training. Thus, the aim of this study was to determine the changes in physical performance after 5 weeks of pre-season training composed of SSGs in amateur soccer players. METHODS: Twenty-four male soccer players performed RSA, a sit-and-reach and two vertical jump (squat and countermovement jump) tests before and after 5 weeks of pre-season training mainly consisting of SSGs...
May 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/27685009/effect-of-dry-needling-on-thigh-muscle-strength-and-hip-flexion-in-elite-soccer-players
#9
Christian Haser, Thomas Stöggl, Monika Kriner, Jörg Mikoleit, Bernd Wolfahrt, Johannes Scherr, Martin Halle, Florian Pfab
PURPOSE: Increase in muscle force, endurance, and flexibility is desired in elite athletes to improve performance and to avoid injuries, but it is often hindered by the occurrence of myofascial trigger points. Dry needling (DN) has been shown effective in eliminating myofascial trigger points. METHODS: This randomized controlled study in 30 elite youth soccer players of a professional soccer Bundesliga Club investigated the effects of four weekly sessions of DN plus water pressure massage on thigh muscle force and range of motion of hip flexion...
February 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27632868/associations-between-functional-and-isolated-performance-measures-in-collegiate-women-s-soccer-players
#10
Ryan S McCann, Kyle B Kosik, Masafumi Terada, Megan Q Beard, Gretchen E Buskirk, Phillip A Gribble
CONTEXT: The Star Excursion Balance Test (SEBT) and Functional Movement Screen (FMS) are functional performance measures capable of predicting lower extremity injury risk. While suboptimal SEBT and FMS performances are influenced by multiple factors, the contribution of hip strength and flexibility to these tests is mostly unknown. Examination of hip strength and flexibility influences on the SEBT and FMS may direct clinicians to better methods of correcting functional deficits. OBJECTIVE: Determine the relationships of isometric hip strength and hip passive range of motion (PROM) with functional performance measures...
August 24, 2016: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/27582278/no-relationship-between-hamstring-flexibility-and-hamstring-injuries-in-male-amateur-soccer-players-a-prospective-study
#11
Mitchell C M van Doormaal, Nick van der Horst, Frank J G Backx, Dirk-Wouter Smits, Bionka M A Huisstede
BACKGROUND: In soccer, although hamstring flexibility is thought to play a major role in preventing hamstring injuries, the relationship between hamstring flexibility and hamstring injuries remains unclear. PURPOSE: To investigate the relationship between hamstring flexibility and hamstring injuries in male amateur soccer players. STUDY DESIGN: Case-control study; Level of evidence, 3. METHODS: This study included 450 male first-class amateur soccer players (mean age, 24...
January 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27443327/associations-between-functional-and-isolated-performance-measures-in-collegiate-women-s-soccer-players
#12
Ryan S McCann, Kyle B Kosik, Masafumi Terada, Megan Q Beard, Gretchen E Buskirk, Phillip A Gribble
CONTEXT: The Star Excursion Balance Test (SEBT) and Functional Movement Screen (FMS) are functional performance measures capable of predicting lower extremity injury risk. While suboptimal SEBT and FMS performances are influenced by multiple factors, the contribution of hip strength and flexibility to these tests is mostly unknown. Examination of hip strength and flexibility influences on the SEBT and FMS may direct clinicians to better methods of correcting functional deficits. OBJECTIVE: Determine the relationships of isometric hip strength and hip passive range of motion (PROM) with functional performance measures...
July 21, 2016: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/27410769/effect-of-high-and-low-flexibility-levels-on-physical-fitness-and-neuromuscular-properties-in-professional-soccer-players
#13
E Rey, A Padrón-Cabo, R Barcala-Furelos, M Mecías-Calvo
This study aimed to analyse the impact of high and low flexibility levels of hamstring and quadriceps muscles on physical fitness and neuromuscular properties in professional soccer players. 62 male professional soccer players participated in this study and performed 2 instrumented flexibility tests (passive straight leg raise [PSLR] and quadriceps flexibility [QF]). Anaerobic performance was assessed using countermovement jump (CMJ), Abalakov vertical jump, 20-m sprint, and Balsom agility test. A k-means cluster analysis was performed to identify a cut-off value of hamstring and quadriceps flexibility and classify players as high hamstring flexibility (HHF) and low hamstring flexibility (LHF) or high quadriceps flexibility (HQF) and low quadriceps flexibility (LQF), respectively, according to the PSLR and QF performances...
October 2016: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/27398916/the-physical-and-athletic-performance-characteristics-of-division-i-collegiate-female-soccer-players-by-position
#14
Robert G Lockie, Matthew R Moreno, Adrina Lazar, Ashley J Orjalo, Dominic V Giuliano, Fabrice G Risso, DeShaun L Davis, Jeff B Crelling, John R Lockwood, Farzad Jalilvand
Playing positions in soccer can exhibit different movement demands during a match, contributing to variations in physical and performance characteristics. NCAA soccer features different substitution rules when compared to FIFA-sanctioned matches, which could influence each players' characteristics. Therefore, this study determined the athletic performance characteristics of Division I female soccer players. Twenty-six players (3 goalkeepers; 8 defenders; 10 midfielders; 5 forwards) from the same squad completed assessments of: lower-body power (vertical and standing broad jump); linear (0-5, 0-10, 0-30 meter [m] sprint intervals) and change-of-direction (pro-agility shuttle; Arrowhead change-of-direction speed test) speed; and soccer-specific fitness (Yo-Yo Intermittent Recovery Test [YYIRT] levels 1 and 2)...
July 7, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27385542/level-of-functional-capacities-following-soccer-specific-warm-up-methods-among-elite-collegiate-soccer-players
#15
Amir Vazini Taher, Abdolhossein Parnow
BACKGROUND: Different methods of warm-up may have implications in improving various aspects of soccer performance. The present study aimed to investigate acute effects of soccer specific warm-up protocols on functional performance tests. METHODS: This study using randomized within-subject design, investigated the performance of 22 collegiate elite soccer player following soccer specific warm-ups using dynamic stretching, static stretching, and FIFA 11+ program. Post warm-up examinations consisted: 1) Illinois Agility Test; 2) vertical jump; 3) 30 meter sprint; 4) consecutive turns; 5) flexibility of knee...
May 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/27054354/determination-of-the-effects-of-playing-soccer-on-physical-fitness-in-individuals-with-transtibial-amputation
#16
Zehra Guchan, Kezban Bayramlar, Nevin Ergun
BACKGROUND: The aim of this paper is to determine the effects of playing soccer on various components of physical performance such as body composition, muscular endurance, anaerobic power, flexibility, balance, and speed of individuals with transtibial amputation. METHODS: Twelve amputee football players aged 26.67±7.76 years and twelve sedentary individuals aged 33±6.7 years were involved in this study. Body composition, and isotonic and isometric endurance of trunk muscles were assessed...
June 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/26990721/influence-of-skeletal-maturity-on-size-function-and-sport-specific-technical-skills-in-youth-soccer-players
#17
M Gouvea, E S Cyrino, A S Ribeiro, D R P da Silva, D Ohara, J Valente-Dos-Santos, M J Coelho-E-Silva, E Ronque
This study compared variation in size, function and sport-specific technical skills of youth soccer players associated with differences in biological maturity status. 60 male soccer players of under-14 (U14) and under-17 (U17) categories were submitted to anthropometric and body composition measurements as well as motor and soccer-specific technical skill tests. Skeletal maturity was determined by skeletal age. Athletes of both categories were classified as early, on-time or late-maturing, according to the difference between chronological age and skeletal age...
June 2016: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/26849477/effects-on-muscle-strength-maximal-jump-height-flexibility-and-postural-sway-after-soccer-and-zumba-exercise-among-female-hospital-employees-a-9-month-randomised-controlled-trial
#18
RANDOMIZED CONTROLLED TRIAL
Svein Barene, Andreas Holtermann, Harald Oseland, Ole-Lars Brekke, Peter Krustrup
This 9-month randomised controlled workplace physical activity trial investigated the effects of soccer and Zumba exercise, respectively, on muscle strength, maximal jump height, sit-and-reach flexibility and postural sway among female workers. A total of 107 female hospital employees aged 25-63 were cluster-randomised to a soccer group, a Zumba group or a control group. Training was conducted outside working hours as two to three 1-h weekly sessions the first 3 months and once a week the last 6 months. Tests were conducted at baseline, after 3 and 9 months...
October 2016: Journal of Sports Sciences
https://www.readbyqxmd.com/read/26829607/hamstring-and-lower-back-flexibility-in-male-amateur-soccer-players
#19
Nick van der Horst, Annique Priesterbach, Frank Backx, Dirk-Wouter Smits
OBJECTIVE: This study investigated the hamstring-and-lower-back flexibility (HLBF) of male adult amateur soccer players, using the sit-and-reach test (SRT), with a view to obtaining population-based reference values and to determining whether SRT scores are associated with player characteristics. DESIGN: Cross-sectional cohort study. SETTING: Teams from high-level Dutch amateur soccer competitions were recruited for participation. PARTICIPANTS: Dutch male high-level amateur field soccer players (n = 449) of age 18 to 40 years...
January 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/26657073/cognitive-functions-in-elite-and-sub-elite-youth-soccer-players-aged-13-to-17-years
#20
Barbara C H Huijgen, Sander Leemhuis, Niels M Kok, Lot Verburgh, Jaap Oosterlaan, Marije T Elferink-Gemser, Chris Visscher
Soccer players are required to anticipate and react continuously in a changing, relatively unpredictable situation in the field. Cognitive functions might be important to be successful in soccer. The current study investigated the relationship between cognitive functions and performance level in elite and sub-elite youth soccer players aged 13-17 years. A total of 47 elite youth soccer players (mean age 15.5 years, SD = 0.9) and 41 sub-elite youth soccer players (mean age 15.2 years, SD = 1.2) performed tasks for "higher-level" cognitive functions measuring working memory (i...
2015: PloS One
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