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https://www.readbyqxmd.com/read/28229576/hormonal-responses-during-two-different-concurrent-training-trials-in-youth-elite-soccer-players-does-changing-the-organisation-of-training-impact-the-hormonal-response-to-concurrent-exercise
#1
Kevin Enright, James Morton, John Iga, Barry Drust
BACKGROUND: There are no data describing the acute hormonal responses to concurrent- training programmes in youth elite soccer players. Therefore, the aim of this study was to describe the total testosterone (T), cortisol (C), and growth hormone (hGH) responses during two same-day concurrent-training (CT) trials in elite soccer players. METHODS: n=13 youth elite players (age: 17.0±0.2 yrs; height, 1.80±0.07 m; body mass, 73.1±5.7 kg; VO2 max, 64.4±4.8ml-1.kg-1...
February 22, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28229574/athlete-presentations-and-sports-injury-frequencies-by-sport-branches-at-a-university-sports-medicine-clinic
#2
Bernard Tahirbegolli, Şensu Dinçer, Ömer B Gözübüyük, Ufuk Değirmenci, Safinaz Yildiz, Suphi Vehid
BACKGROUND: We aimed to investigate the profile of athletes by determining the branch of sports, type, and area of sustained sports injury, and the frequencies through athletes' presentations to the largest university clinic in one of the most crowded and athletepopulated cities of Turkey, Istanbul. MATERIALS AND METHODS: THE study population comprised 1302 athletes who presented to the sports medicine clinic between the dates of July 1st, 2014, and June 30th, 2015...
February 22, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28229570/the-periodization-of-resistance-training-in-soccer-players-changes-in-maximal-strength-lower-extremity-power-body-composition-and-muscle-volume
#3
Amir Barjaste, Bahman Mirzaei
BACKGROUND: The purpose of this study was to investigate the effect of 12-weeks traditional periodized resistance training on some physical capacities of soccer players. METHODS: Eighteen amateur soccer players with very little experience in resistance training voluntarily participated in this study. Subjects were assigned into two groups; Experimental (EX) group (n: 10) that conducted a traditional linear periodized resistance training program and a control (C) group (n: 8) that did not participate in any resistance training...
22, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28229569/nonlinear-sprint-performance-differentiates-professional-from-young-soccer-players
#4
Maithe Cardoso de Araújo, Christian Baumgart, Jürgen Freiwald, Matthias W Hoppe
BACKGROUND: Linear and nonlinear sprinting activities are relevant physical capacities in soccer. This study aimed (1) to compare linear and nonlinear sprint performance between professional and young soccer players and (2) to investigate relationships between both sprint types. METHODS: Sixty-eight German male elite field soccer players were grouped based on age as professional (PRO, n = 20), under-23 (U23, n = 16), under-19 (U19, n = 18), and under-17 (U17, n = 14)...
February 22, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28229567/repeated-sprint-training-in-the-fasted-state-during-ramadan-morning-or-evening-training
#5
Asma Aloui, Tarak Driss, Hana Baklouti, Hamdi Jaafar, Omar Hammouda, Karim Chamari, Nizar Souissi
BACKGROUND: The present study assessed the optimal moment-of-day for repeated-sprint training in the fasted state during Ramadan. METHODS: Thirty amateur soccer players were randomly assigned to a morning training group (MTG, training at ~08:00 a.m., n = 10), an evening training group (ETG, training at ~06:00 p.m., n = 10), and a control group (n = 10). Training sessions, conducted on alternate days, consisted of 3 sets of 6 × 40-m shuttle sprints (2 × 20 m with 180° direction changes)...
February 22, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28225689/sex-differences-in-anthropometrics-and-heading-kinematics-among-division-i-soccer-athletes
#6
Abigail C Bretzin, Jamie L Mansell, Ryan T Tierney, Jane K McDevitt
BACKGROUND: Soccer players head the ball repetitively throughout their careers; this is also a potential mechanism for a concussion. Although not all soccer headers result in a concussion, these subconcussive impacts may impart acceleration, deceleration, and rotational forces on the brain, leaving structural and functional deficits. Stronger neck musculature may reduce head-neck segment kinematics. HYPOTHESIS: The relationship between anthropometrics and soccer heading kinematics will not differ between sexes...
March 2017: Sports Health
https://www.readbyqxmd.com/read/28222578/the-effects-of-prevent-injury-and-enhance-performance-program-in-a-female-soccer-team
#7
Cristina Rodríguez, Soledad Echegoyen, Takeshi Aoyama
BACKGROUND: The purpose of this study is to evaluate the changes of muscle strength in lower limbs and knee valgus alignment using the Prevent Injury and Enhance Performance Program (PEP program) to prevent ACL injuries in female soccer players during an entire season. METHODS: A longitudinal and prospective study was done in twenty female soccer players at the Universidad Nacional Autónoma de México, from a senior team. During 24 weeks the training program was applied three times a week as a part of the team workouts...
February 21, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28222573/soccer-related-performance-in-eumenorrheic-tunisian-high-level-soccer-players-effects-of-menstrual-cycle-phase-and-moment-of-day
#8
Mohamed Tounsi, Hamdi Jaafar, Asma Aloui, Nizar Souissi
BACKGROUND: This study aimed to examine the combined effects of menstrual cycle phase and moment of day on female soccer players' performances in the five-jump test (5JT), the repeated shuttle- sprint ability test (RSSA), and the Yo-Yo intermittent recovery test level 1 (YYIRT1). METHODS: Eleven eumenorrheic Tunisian high-level soccer players volunteered to participate. Each subject individually participated in three testing periods: one in the early follicular phase (menses), one in the late follicular phase, and another in the luteal phase...
February 21, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28220500/neuroplus-biofeedback-improves-attention-resilience-and-injury-prevention-in-elite-soccer-players
#9
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/28219108/relative-age-maturation-and-physical-biases-on-position-allocation-in-elite-youth-soccer
#10
Chris Towlson, Stephen Cobley, Adrian Wayne Midgley, Andrew Garrett, Guy Parkin, Ric Lovell
This study assessed the contribution of relative age, anthropometry, maturation, and physical fitness characteristics on soccer playing position (goalkeeper [GK], central-defender [CD], lateral-defender [LD], central-midfield [CM], lateral-midfielder [LM], and forward [FWD]) for 465 elite-youth players (U13-U18's). U13-14 CD were relatively older than LD and CM (likely small effects). CD and GK were generally taller and heavier (likely small to very-likely moderate effects) than other players at each developmental stage and were advanced maturers at U13-14 (very-likely small to likely moderate effects)...
February 20, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28217570/risk-factors-of-anterior-cruciate-ligament-injury-in-football-players-a-systematic-review-of-the-literature
#11
Piero Volpi, Gian Nicola Bisciotti, Karim Chamari, Emanuela Cena, Giulia Carimati, Nicola Luigi Bragazzi
BACKGROUND: The ACL lesion represents one of the most dramatic injuries in a sportsman's career. There are many injury risk factors related to intrinsic, or non-modifiable, and extrinsic, or modifiable, factors. In literature at today current evidence suggests that ACL injury risk is multifactorial and involves biomechanical, anatomical, hormonal and neuromuscular factors. PURPOSE: To perform a systematic review of the literature concerning the ACL injury risk factors in soccer...
October 2016: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/28209570/head-accelerations-across-collegiate-high-school-and-youth-female-and-male-soccer-players
#12
Jaclyn B Caccese
No abstract text is available yet for this article.
February 16, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28205009/mixed-pathologies-including-chronic-traumatic-encephalopathy-account-for-dementia-in-retired-association-football-soccer-players
#13
Helen Ling, Huw R Morris, James W Neal, Andrew J Lees, John Hardy, Janice L Holton, Tamas Revesz, David D R Williams
In retired professional association football (soccer) players with a past history of repetitive head impacts, chronic traumatic encephalopathy (CTE) is a potential neurodegenerative cause of dementia and motor impairments. From 1980 to 2010, 14 retired footballers with dementia were followed up regularly until death. Their clinical data, playing career, and concussion history were prospectively collected. Next-of-kin provided consent for six to have post-mortem brain examination. Of the 14 male participants, 13 were professional and 1 was a committed amateur...
February 15, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28203599/surgical-management-of-rectus-femoris-avulsion-among-professional-soccer-players
#14
Bertrand Sonnery-Cottet, Nuno Camelo Barbosa, Sanesh Tuteja, Roland Gardon, Matt Daggett, Damien Monnot, Charles Kajetanek, Mathieu Thaunat
BACKGROUND: Rectus femoris injuries are common among athletes, especially in kicking sports such as soccer; however, proximal rectus femoris avulsions in athletes are a relatively rare entity. PURPOSE/HYPOTHESIS: The purpose of this study was to describe and report the results of an original technique of surgical excision of the proximal tendon remnant followed by a muscular suture repair. Our hypothesis was that this technique limits the risk of recurrence in high-level athletes and allows for rapid recovery without loss of quadriceps strength...
January 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28203217/a-comparison-of-players-and-coaches-perceptions-of-the-coach-created-motivational-climate-within-youth-soccer-teams
#15
Nina Elise Møllerløkken, Håvard Lorås, Arve Vorland Pedersen
The coach-created motivational climate within youth sports teams has been shown to be of great importance for the quality of youths' sports experiences as well as their motivation for continuing or discontinuing sport participation. While the player's perspective on motivational climates has been studied extensively, the coach's perspective has received considerably less attention. Thus, little is known about the concordance of perceptions of the motivational climate between coaches and their players, or the lack thereof...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28199402/short-or-long-rest-intervals-during-repeated-sprint-training-in-soccer
#16
F Marcello Iaia, Matteo Fiorenza, Luca Larghi, Giampietro Alberti, Grégoire P Millet, Olivier Girard
The present study compared the effects of two repeated-sprint training (RST) programs, differing in duration of the between-sprint rest intervals, on various soccer-related exercise performances. For 5 weeks during the competitive season, twenty-nine young trained male soccer players either replaced two of their habitual fitness conditioning sessions with RST characterized by short (5-15; n = 9) or long (5-30; n = 10) rest intervals, or served as control (n = 10). The 5-15 and 5-30 protocols consisted of 6 repetitions of 30-m (~5 s) straight-line sprints interspersed with 15 s or 30 s of passive recovery, respectively...
2017: PloS One
https://www.readbyqxmd.com/read/28198600/relationship-between-field-tests-and-match-running-performance-in-high-level-young-brazilian-soccer-players
#17
Rodrigo Aquino, Luiz H Palucci Vieira, Lucas de Paula Oliveira, Luiz G Cruz Goncalves, Paulo R Pereira Santiago
BACKGROUND: The main aim of this study was to analyse the relationship between field tests and match running performance using computational tracking technology in high-level young Brazilian soccer players. METHODS: Twenty-five young male Brazilian soccer players participated in this study (U-15, n = 13; U-17, n = 12). In the same week the players were submitted to field tests and actual matches. The field tests were: Maximum Speed (10m-30m), Zig-Zag, Running-based Anaerobic Sprint Test, and Yo-Yo Intermittent Recovery Test level 1...
February 14, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28197674/role-of-vision-in-sighted-and-blind-soccer-players-in-adapting-to-an-unstable-balance-task
#18
María Campayo-Piernas, Carla Caballero, David Barbado, Raúl Reina
This study tested whether a compensatory hypothesis exists on postural control during standing unstable balance tasks comparing blind soccer players (n = 7) to sighted soccer players (n = 15) and sighted sedentary individuals (n = 6). All subjects performed a pre-test, a training of ten practice trials on a single day, and a post-test balance test. All tests were performed on an unstable surface placed on a force platform and under closed-eyes conditions, and a final test was performed with open eyes...
February 14, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28197354/neuromuscular-coordination-deficit-persists-12-months-after-acl-reconstruction-but-can-be-modulated-by-6-weeks-of-kettlebell-training-a-case-study-in-women-s-elite-soccer
#19
Mette K Zebis, Christoffer H Andersen, Jesper Bencke, Christina Ørntoft, Connie Linnebjerg, Per Hölmich, Kristian Thorborg, Per Aagaard, Lars L Andersen
The aim of the present single-case study was to investigate the effect of 6 weeks' kettlebell training on the neuromuscular risk profile for ACL injury in a high-risk athlete returning to sport after ACL reconstruction. A female elite soccer player (age 21 years) with no previous history of ACL injury went through neuromuscular screening as measured by EMG preactivity of vastus lateralis and semitendinosus during a standardized sidecutting maneuver. Subsequently, the player experienced a noncontact ACL injury...
2017: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/28192831/training-effects-of-the-fifa-11-and-harmoknee-on-several-neuromuscular-parameters-of-physical-performance-measures
#20
Francisco Ayala, Carlos Pomares-Noguera, Francisco Javier Robles-Palazón, Maria Del Pilar García-Vaquero, Ignacio Ruiz-Pérez, Sergio Hernández-Sánchez, Mark De Ste Croix
The main purpose of this study was to analyse the training effects of the FIFA 11+ and Harmoknee on several parameters of physical performance measures in youth amateur football players. 41 adolescent players were randomised within each team into 2 groups (team 1: control vs. FIFA 11+; team 2: control vs. Harmoknee). The FIFA 11+ and Harmoknee groups performed the program 3 times a week for 4 weeks; the control groups completed their usual warm-up routines. 13 physical performance measures (joint range of motion, dynamic postural control, single legged hop limb symmetry, sprint time, jumping height and agility) were assessed...
February 13, 2017: International Journal of Sports Medicine
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