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https://www.readbyqxmd.com/read/28444437/range-limitation-in-hip-internal-rotation-and-fifth-metatarsal-stress-fractures-jones-fracture-in-professional-football-players
#1
Yoshitomo Saita, Masashi Nagao, Takayuki Kawasaki, Yohei Kobayashi, Keiji Kobayashi, Hiroki Nakajima, Yuji Takazawa, Kazuo Kaneko, Hiroshi Ikeda
PURPOSE: To identify unknown risk factors associated with fifth metatarsal stress fracture (Jones fracture). METHODS: A case-controlled study was conducted among male Japanese professional football (soccer) players with (N = 20) and without (N = 40) a history of Jones fracture. Injury history and physical examination data were reviewed, and the two groups were compared. Univariate and multivariate logistic regression controlling for age, leg dominance and body mass index were used to obtain odds ratios (ORs) and 95% confidence intervals (CIs) to describe the association between physical examination data and the presence or absence of Jones fractures...
April 25, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28442275/wellbeing-perception-and-the-impact-on-external-training-output-among-elite-soccer-players
#2
Shane Malone, Adam Owen, Matt Newton, Bruno Mendes, Leo Tiernan, Brian Hughes, Kieran Collins
OBJECTIVES: The objective of the investigation was to observe the impact of player wellbeing on the training output of elite soccer players. DESIGN: Prospective cohort design. METHODS: Forty-eight soccer players (age: 25.3±3.1years; height: 183±7cm; mass: 72±7kg) were involved in this single season observational study across two teams. Each morning, pre-training, players completed customised perceived wellbeing questionnaires. Global positioning technology devices were used to measure external load (total distance, total high-speed running distance, high speed running, player load, player load slow, maximal velocity, maximal velocity exposures)...
April 13, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28438635/testosterone-and-cortisol-responses-in-male-soccer-players-the-effect-of-home-and-away-venues
#3
Melissa Fothergill, Sandy Wolfson, Nick Neave
The present studies examined the influence of playing venue on psychobiological responses in male soccer players. Many studies have demonstrated the existence of a home advantage, wherein teams perform better at home than away. A recent focus has attempted to explain this advantage from a psychobiological perspective, with studies showing hormonal differences with regard to venue, game outcome, dominance and perceived stress. Two studies investigated testosterone and cortisol responses in relation to home and away venues...
April 21, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28437548/arthroscopic-treatment-of-a-displaced-nonunion-of-the-anterior-inferior-iliac-spine-causing-extra-articular-impingement
#4
Motoi Shibahara, Yasuo Ohnishi, Eisaburo Honda, Dean K Matsuda, Soshi Uchida
This report describes a case of nonunion of an anterior inferior iliac spine (AIIS) apophyseal avulsion fracture with resultant subspine impingement combined with symptomatic femoroacetabular impingement (FAI). A 16-year-old male soccer player presented with a 6-month history of right groin pain exacerbated by kicking and running. The patient was diagnosed with a displaced nonunion of the AIIS apophysis avulsion fracture causing secondary extra-articular impingement beyond cam-type FAI by physical examination and radiological findings...
April 24, 2017: Orthopedics
https://www.readbyqxmd.com/read/28429636/differences-in-game-reading-between-selected-and-non-selected-youth-soccer-players
#5
Ruud J R Den Hartigh, Steffie Van Der Steen, Bas Hakvoort, Wouter G P Frencken, Koen A P M Lemmink
Applying an established theory of cognitive development-Skill Theory-the current study compares the game-reading skills of youth players selected for a soccer school of a professional soccer club (n = 49) and their non-selected peers (n = 38). Participants described the actions taking place in videos of soccer game plays, and their verbalisations were coded using Skill Theory. Compared to the non-selected players, the selected players generally demonstrated higher levels of complexity in their game-reading, and structured the information of game elements-primarily the player, teammate and field-at higher complexity levels...
April 21, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28422525/soccer-match-play-represents-an-important-component-of-the-power-training-stimulus-in-premier-league-players
#6
Ryland Morgans, Rocco Di Michele, Barry Drust
PURPOSE: Competitive match-play is a dominant component of the physical load completed by soccer players within a training micro-cycle. Characterising the temporal disruption in homeostasis that follows exercise may provide some insight into the potential for match-play to elicit an adaptive response. METHODS: Countermovement jump (CMJ) performance was characterised 3 days post-match for 15 outfield players from an English Premier League soccer team (age: 25.8 ± 4...
April 19, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28422524/straight-line-and-change-of-direction-intermittent-running-in-professional-soccer-players
#7
Mohamed S Fessi, Fayçal Farhat, Alexandre Dellal, James J Malone, Wassim Moalla
PURPOSE: The present study aimed to investigate the difference between straight-line (STL) and change of direction (COD) intermittent running exercises in soccer players. METHODS: Seventeen male professional soccer players performed the agility T-test and 6 intermittent running exercises: 10s at 130% of maximal aerobic speed (MAS) alternated with 10s of rest (10-10), 15s at 120% of MAS alternated with 15s of rest (15-15) and 30s at 110% of MAS alternated with 30s of rest (30-30) both in STL and with COD...
April 19, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28419175/talent-identification-and-recruitment-in-youth-soccer-recruiter-s-perceptions-of-the-key-attributes-for-player-recruitment
#8
Paul Larkin, Donna O'Connor
Using the modified Delphi method, we aimed to understand the attributes youth coaches and recruiters perceive as important when identifying skilled youth performance at the entry level of representative soccer in Australia (i.e., Under 13 years). Furthermore, we also aimed to describe the current methods youth coaches and recruiters use to assess and identify these attributes in youth players. Australian regional youth technical directors and coaches (n = 20) completed a three stage process, including an initial interview and two subsequent questionnaires, whereby attributes and qualities associated with talent identification were rated and justified according to the importance for youth player performance and talent identification...
2017: PloS One
https://www.readbyqxmd.com/read/28416354/unilateral-jumps-in-different-directions-a-novel-assessment-of-soccer-associated-power
#9
Conall F Murtagh, Jos Vanrenterghem, Andrew O'Boyle, Ryland Morgans, Barry Drust, Robert M Erskine
OBJECTIVES: We aimed to determine whether countermovement jumps (CMJs; unilateral and bilateral) performed in different directions assessed independent lower-limb power qualities, and if unilateral CMJs would better differentiate between elite and non-elite soccer players than the bilateral vertical (BV) CMJ. DESIGN: Elite (n=23; age, 18.1±1.0years) and non-elite (n=20; age, 22.3±2.7years) soccer players performed three BV, unilateral vertical (UV), unilateral horizontal-forward (UH) and unilateral medial (UM) CMJs...
March 29, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28413696/prevalence-of-potential-sports-associated-risk-factors-in-swiss-amyotrophic-lateral-sclerosis-patients
#10
Nina Feddermann-Demont, Astrid Junge, Konrad P Weber, Michael Weller, Jiří Dvořák, Alexander A Tarnutzer
OBJECTIVES: Amyotrophic lateral sclerosis (ALS) has been reported to occur with increased incidence amongst physically active people. The role of extrinsic risk factors as physical activity, head trauma and drug/pesticide-exposure in the pathophysiology of ALS and especially in the context of practising sports remains controversial. MATERIALS AND METHODS: We retrospectively studied exposure to extrinsic factors in 92 ALS patients in the presymptomatic stage. Metabolic equivalents (METs) were calculated and the association of physical activity, drug intake, head trauma and participation in specific sports (football [soccer], ice hockey) with age at symptom-onset was evaluated...
April 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28409516/relationships-between-fitness-test-and-kicking-velocity-in-young-soccer-players
#11
Víctor Torreblanca-Martínez, José A González-Jurado, Fernando M Otero-Saborido
BACKGROUND: To study the relation between fitness test and kicking velocity in young soccer players, which has not been previously studied in this group of age. METHODS: Ninety eight Under-11 soccer players who belonged to two professional Spanish clubs and two amateur clubs were subjected to sprint test (15 and 30 meters), CMJ (Countermovement Jump), estimation of maximal oxygen intake (VO2max), kicking velocity test, fatigue index of jump height and anthropometrical measures...
April 13, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28408889/effects-of-sesame-sesamum-indicum-l-supplementation-on-creatine-kinase-lactate-dehydrogenase-oxidative-stress-markers-and-aerobic-capacity-in-semi-professional-soccer-players
#12
Carlos V da Silva Barbosa, Alexandre S Silva, Caio V C de Oliveira, Nayara M L Massa, Yasmim R F de Sousa, Whyara K A da Costa, Ayice C Silva, Plínio Delatorre, Rhayane Carvalho, Valdir de Andrade Braga, Marciane Magnani
Nutritional intervention with antioxidants rich foods has been considered a strategy to minimize the effects of overtraining in athletes. This experimental, randomized, and placebo-controlled study evaluated the effects of consumption of sesame (Sesamum indicum L.) on muscle damage markers, oxidative stress, systemic inflammation, and aerobic performance in male semi-professional soccer players. Twenty athletes were randomly assigned to groups that received 40 g (two tablespoons) per day of sesame or a placebo during 28 days of regular training (exposed to routine training that includes loads of heavy training in the final half of the season)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28408058/security-high-tech-individual-extra-light-device-mask-2-0-cad-cam-evolution
#13
V Ramieri, V Vellone, S Crimi, P Cascone
In 2008, we presented our security "high-tech" individual extra-light device mask (SHIELD), a protective shield based on the face cast of an injured soccer player that can be customised. It allows a shortened convalescent period, is comfortable, fits well, and allows the patient to continue to play at a professional level in their chosen sport or activity in the shortest time possible. It has been used often in both amateur and professional categories of many sports, and we now present an update.
April 10, 2017: British Journal of Oral & Maxillofacial Surgery
https://www.readbyqxmd.com/read/28399668/kinesiology-tape-mediates-soccer-simulated-and-local-peroneal-fatigue-in-soccer-players
#14
Claire Farquharson, Matt Greig
To investigate the efficacy of kinesiology taping in mediating the influence of fatigue on ankle sprain risk, 12 male soccer players completed single-leg dynamic balance trials pre- and post-exercise (soccer-specific protocol, isokinetic ankle inversion/eversion protocol) in each of three counter-balanced taping conditions (no tape, zinc oxide tape ZO, kinesiology tape KT). Balance was quantified as the overall stability index (OSI) and directional stability indices of platform deflection. Soccer-specific fatigue only increased OSI in the no tape condition (p = 0...
April 12, 2017: Research in Sports Medicine
https://www.readbyqxmd.com/read/28399624/effect-of-respiratory-muscle-training-on-pulmonary-function-and-aerobic-endurance-in-soccer-players
#15
Tarik Ozmen, Gokce Y Gunes, Ilyas Ucar, Hanife Dogan, Tuba U Gafuroglu
BACKGROUND: Few studies investigated the effects of the respiratory muscle training (RMT) in soccer although exhaustive high intensity exercise is known to lead to muscle fatigue in respiratory muscles. The purpose of this study was to investigate the effect of RMT on pulmonary function and aerobic endurance in soccer players. METHODS: Eighteen male soccer players (mean age 22.2±1.4 years) participated in this study. Participants were assigned randomly to either an RMT or a control (CON) group...
May 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28395147/acute-effect-of-stretching-modalities-on-global-coordination-and-kicking-accuracy-in-12-13year-old-soccer-players
#16
Mohamed Frikha, Mohammad S Derbel, Nesrine Chaâri, Adnene Gharbi, Karim Chamari
The aim of the study was to compare the effect of stretching procedures on global coordination and accuracy in instep soccer kicks achieved in different stress conditions. Twenty male young soccer players completed the global coordination test (GC), the instep kicking accuracy test in free (FKA) and in time-pressure (TPKA) conditions, either after static (SS), dynamic (DS), ballistic (BS) or no-stretching (CTR) protocols, on nonconsecutive days and in a randomized order. After performing a 5min standardized intensity jogging (70% of MAV), followed by stretching exercises for 10min, each participant completed, successively, the GC, FKA and TPKA tests...
April 7, 2017: Human Movement Science
https://www.readbyqxmd.com/read/28394831/progression-in-youth-soccer-selection-and-identification-in-youth-soccer-players-aged-13-15-years
#17
Iraia Bidaurrazaga-Letona, José Antonio Lekue, Markos Amado, Susana Maria Gil
The aim of this study was to identify the factors which are important for the identification and selection of young soccer players. Ninety four adolescent soccer players from the Under-13 (U13; age=12.3 ± 0.3 years; n=50) and Under-15 (U15; age=14.0 ± 0.2 years; n=44) categories belonging to a professional club participated in the study. Anthropometric measurements, physical tests (sprint, agility, endurance and jump) and maturity status (age at peak height velocity) were recorded over four seasons. Comparisons were performed amongst new players joining the club (Enter players, n=15), players progressing to the next age category (Club players, n=54) and players leaving the club (Deselected players, n=25)...
April 7, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28389864/does-the-fifa-11-%C3%A2-injury-prevention-program-reduce-the-incidence-of-acl-injury-in-male-soccer-players
#18
Holly J Silvers-Granelli, Mario Bizzini, Amelia Arundale, Bert R Mandelbaum, Lynn Snyder-Mackler
BACKGROUND: The FIFA 11+ injury prevention program has been shown to decrease the risk of soccer injuries in men and women. The program has also been shown to decrease time loss resulting from injury. However, previous studies have not specifically investigated how the program might impact the rate of anterior cruciate ligament (ACL) injury in male soccer players. QUESTIONS/PURPOSES: The purpose of this study was to examine if the FIFA 11+ injury prevention program can (1) reduce the overall number of ACL injuries in men who play competitive college soccer and whether any potential reduction in rate of ACL injuries differed based on (2) game versus practice setting; (3) player position; (4) level of play (Division I or II); or (5) field type...
April 7, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28387555/epidemiology-of-sport-related-concussions-in-high-school-athletes-national-athletic-treatment-injury-and-outcomes-network-nation-2011-2012-through-2013-2014
#19
Kathryn L O'Connor, Melissa M Baker, Sara L Dalton, Thomas P Dompier, Steven P Broglio, Zachary Y Kerr
CONTEXT: Sports participation is one of the leading causes of concussions among nearly 8 million US high school student-athletes. OBJECTIVE: To describe the epidemiology of sport-related concussion (SRC) in 27 high school sports during the 2011-2012 through 2013-2014 academic years. DESIGN: Descriptive epidemiology study. SETTING: Aggregate injury and exposure data from 27 sports in 147 high schools in the National Athletic Treatment, Injury and Outcomes Network (NATION)...
March 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/28387553/head-impact-measurement-devices-a-systematic-review
#20
Kathryn L O'Connor, Steven Rowson, Stefan M Duma, Steven P Broglio
CONTEXT: With an estimated 3.8 million sport- and recreation-related concussions occurring annually, targeted prevention and diagnostic methods are needed. Biomechanical analysis of head impacts may provide quantitative information that can inform both prevention and diagnostic strategies. OBJECTIVE: To assess available head-impact devices and their clinical utility. DATA SOURCES: We performed a systematic search of the electronic database PubMed for peer-reviewed publications, using the following phrases: accelerometer and concussion, head impact telemetry, head impacts and concussion and sensor, head impacts and sensor, impact sensor and concussion, linear acceleration and concussion, rotational acceleration and concussion, and xpatch concussion...
March 2017: Journal of Athletic Training
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