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https://www.readbyqxmd.com/read/29145110/traumatic-separation-of-osseous-segments-in-a-double-layered-patella
#1
Andreas Jørgensen, Erik Brandt, Anton Ulstrup
INTRODUCTION: Double-layered patella is a rare intra-articular disorder associated with multiple epiphyseal dysplasia. PRESENTATION OF CASE: We present a case of a 40-year old man with acute pain in his left knee after a tackle during soccer play. DISCUSSION: Clinical examination and radiographs confirmed the diagnosis of a bilateral double-layered patella with traumatic separation of the osseous segments on the afflicted left side. Surgical management comprised of open arthrotomy and debridement of the bony interface...
November 10, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29141772/acoustic-analysis-of-soccer-fans-in-acute-phonotrauma-after-the-match
#2
Mehmet Ozgur Pinarbasli, Ercan Kaya, Erkan Ozudogru, Melek Kezban Gurbuz, Ertugrul Colak, Mehmet Akif Aksoy, Leman Birdane, Fatma Ozgur Guney
OBJECTIVES: Acute phonotrauma is the result of sound production by shouting or straining one's voice. In this study, we aimed to investigate the acute changes in the vocal folds and voices of soccer fans who voluntarily applied to our clinic after the soccer match where they engaged in acute phonotrauma. There are no other studies in the literature conducted on a similar sample group. STUDY DESIGN: This is a case-control study. METHODS: Videolaryngostroboscopic (VLS) examination, acoustic voice analysis, and Voice Handicap Index (VHI) questionnaire were performed on 29 voluntary soccer fans included to the study before the match and at the first hour after the match...
November 13, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/29140913/sex-differences-in-aerobic-fitness-in-top-class-soccer-referees
#3
Carlo Castagna, Mario Bizzini, Stefano DʼOttavio, Susana C Araújo Póvoas
Castagna, C, Bizzini, M, D'Ottavio, S, and Araújo Póvoas, SC. Gender differences in aerobic fitness in top-class soccer referees. J Strength Cond Res XX(X): 000-000, 2017-The aim of this study was to assess the aerobic-fitness differences between male and female top-class soccer field referees (FRs). This with the purpose to provide cutoff values useful for training prescription in female FRs. Forty female top-class FRs (age 34.18 ± 3.50 years and 5 ± 3.9 years international refereeing experience) and 52 male FRs (age 38...
November 14, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29140811/prevalence-of-spondylolysis-in-symptomatic-adolescent-athletes-an-assessment-of-sport-risk-in-nonelite-athletes
#4
Mitchell Selhorst, Anastasia Fischer, James MacDonald
OBJECTIVE: To assess the risk of spondylolysis by sport in nonelite adolescent athletes with low back pain (LBP). DESIGN: Retrospective case series. SETTING: Hospital-based sports medicine clinic. PATIENTS: The medical charts of 1025 adolescent athletes with LBP (age 15 ± 1.8 years) were examined; 308 (30%) were diagnosed with a spondylolysis. ASSESSMENT OF RISK: Risk of spondylolysis was assessed in 11 sports for males and 14 sports for females...
November 14, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29140810/are-we-scoring-a-goal-by-banning-headers-from-soccer
#5
Fernando J Manalac, Claudio Loffreda-Mancinelli
No abstract text is available yet for this article.
November 14, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29136255/loss-of-internal-tibial-rotation-after-anterior-cruciate-ligament-reconstruction
#6
Shawn R Brandenburg, Thomas M Matelic
The flexion angle of the knee and the position of the tibia need to be considered during tensioning of the anterior cruciate ligament (ACL) graft to avoid overconstraining the knee. The purpose of this report was to describe 2 cases of loss of tibial internal rotation after single-bundle anatomic ACL reconstruction with graft tensioning in flexion. Retrospective review of each patient's operative chart revealed that the graft was tensioned in flexion and placed in an anatomic position in the femoral tunnel at the time of the index operation...
November 11, 2017: Orthopedics
https://www.readbyqxmd.com/read/29135269/return-to-play-after-hip-arthroscopic-surgery-for-femoroacetabular-impingement-in-professional-soccer-players
#7
Renato Locks, Hajime Utsunomiya, Karen K Briggs, Shannen McNamara, Jorge Chahla, Marc J Philippon
BACKGROUND: Arthroscopic hip surgery has been shown to be effective in returning professional athletes back to play at a high level of performance in different sports. Limited information exists regarding professional soccer players and their return to play. PURPOSE: To determine the rate and time to return to sport for professional soccer players after hip arthroscopic surgery for the treatment of femoroacetabular impingement (FAI) and to identify possible risk factors associated with a delay in returning to play...
November 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29134052/effects-of-an-interpersonal-style-intervention-for-coaches-on-young-soccer-players-motivational-processes
#8
Juan J Pulido, David Sánchez-Oliva, Francisco M Leo, Sergio Matos, Tomás García-Calvo
The main goal of the study was to assess the effects of an intervention programme developed with soccer coaches, based on promoting strategies to optimise the satisfaction of the basic psychological needs of athletes. Eight soccer coaches, aged between 19 and 50 years (M = 32.5; SD = 14.34), participated in the study. They were selected intentionally (without academic or federative training) and divided equally into a control and an experimental group by random peer selection. Also, 109 soccer players, aged between 11 and 15 years (M = 13...
October 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/29134051/does-context-practice-or-competition-affect-female-athletes-achievement-goal-dominance-goal-pursuit-burnout-and-motivation
#9
Javier Fernández-Rio, Jose A Cecchini, Antonio Méndez-Giménez
The goal of this study was to assess the effects of two different achievement sport contexts, practice and competition, on the motivational profile of professional/semi-professional athletes. Forty-eight Spanish national/international-level female athletes (basketball = 18; handball = 12; soccer = 11; volleyball = 7), mean age 25.14 ± 3.43 years, agreed to participate in the study. They completed a questionnaire, prior and after training and competition, to assess achievement goals, achievement goal dominance, goal pursuit, motivational climate, motivation, burnout and perceived recovery-exertion...
October 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/29134050/mental-strategies-predict-performance-and-satisfaction-with-performance-among-soccer-players
#10
Magdalena Kruk, Jan Blecharz, Monika Boberska, Karolina Zarychta, Aleksandra Luszczynska
This study investigated the changes in mental strategies across the season and their effects on performance and satisfaction with individual performance. Data were collected three times: at the pre-season at Time 1 (T1; baseline), in the mid-season at Time 2 (T2; two-month follow-up), and at the end-of-season at Time 3 (T3; nine-month follow-up) among male soccer players (N = 97) aged 16-27. Athletes completed the questionnaires assessing the use of nine psychological strategies in competition and the level of satisfaction with individual performance...
October 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/29133819/low-perceptual-sensitivity-to-altered-video-speed-in-viewing-a-soccer-match
#11
Claudio de'Sperati, Gabriel Baud Bovy
When watching videos, our sense of reality is continuously challenged. How much can a fundamental dimension of experience such as visual flow be modified before breaking the perception of real time? Here we found a remarkable indifference to speed manipulations applied to a popular video content, a soccer match. In a condition that mimicked real-life TV watching, none of 100 naïve observers spontaneously noticed speed alterations up/down to 12%, even when asked to report motion anomalies, and showed very low sensitivity to video speed changes (Just Noticeable Difference, JND = 18%)...
November 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29132263/movement-pattern-and-physiological-response-in-recreational-small-sided-football-effect-of-number-of-players-with-a-fixed-pitch-size
#12
Morten B Randers, Christina Ørntoft, Marie Hagman, Jens J Nielsen, Peter Krustrup
Recreational soccer is an effective health-promoting activity, but it is unclear how different game formats influence internal and external load. Thus, to be able to advise how to maximise the outcome of recreational football, we examined movement pattern and physiological response in 11 untrained men (32.6 ± 6.7 yrs, 23.3 ± 4.9 fat%, 43.4 ± 5.3 ml·min(-1)·kg(-1)) during three football sessions comprising 4 × 12 min of 3v3, 5v5 or 7v7 with a constant pitch size of 20 × 40 m. Movement pattern, heart rate (HR), blood lactate and RPE were measured during and after the 12-min periods...
November 13, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29130575/a-prospective-investigation-to-evaluate-risk-factors-for-lower-extremity-injury-risk-in-male-youth-soccer-players
#13
Paul J Read, Jon L Oliver, Mark B A De Ste Croix, Gregory D Myer, Rhodri S Lloyd
There is an inherent risk of injury in male youth football; however, pertinent risk factors for injury have yet to be examined. This study used a prospective cohort design with 357 elite male youth football players (aged 10-18 years) assessed during the pre-season period and then monitored during the season recording all non-contact lower extremity injuries. Screening tests included: single leg hop for distance (SLHD); 75% of maximum hop and stick (75%Hop); single leg countermovement jump (SLCMJ); and the tuck jump assessment (TJ)...
November 11, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29125217/an-evaluation-of-the-impact-of-fifa-world-cup-on-soccer-emergency-department-injuries-among-montreal-adolescents
#14
Glenn Keays, Debbie Friedman, Marianne Beaudin, Isabelle Gagnon
AIM: The 'trickle-down effect', or how major sports events have a positive impact on sports participation, has been the subject of many studies, but none produced conclusive results. We took a different approach and rather than look at sports participation, we used injuries as a proxy and see if injuries increased, or remained the same, after the International Federation of Association Football World Cup. METHODS: Using a retrospective cohort design, we looked at the injuries suffered by males and females (13-16 years old) while playing team sports in Montreal, that occurred in May to July, from 1999 to 2014...
November 10, 2017: Journal of Paediatrics and Child Health
https://www.readbyqxmd.com/read/29125074/-a-soccer-player-with-an-unstable-knee
#15
D Janssen, B Koc, E Jansen
A 19-year-old soccer player presented with instability of his left knee after a rotation trauma. Congenital absence of the anterior cruciate ligament was suspected because of leg length discrepancy and specific MRI findings. He regained stability after an anterior cruciate reconstruction.
2017: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/29125037/an-audit-of-injuries-in-six-english-professional-soccer-academies
#16
Paul J Read, Jon L Oliver, Mark B A De Ste Croix, Gregory D Myer, Rhodri S Lloyd
Regulations now state that professional academies in the United Kingdom are required to substantially increase the volume of soccer training. This study assessed the current injury occurrence, providing an update to reports published prior to the introduction of the Elite Player Performance Plan (EPPP). 608 soccer players aged 11-18 years from six professional soccer clubs were prospectively monitored, recording injuries during the 2014-2015 season. An injury rate of 1.32 injuries per player/season was indicated with a mean time loss of 21...
November 10, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29125029/match-derived-relative-pitch-area-changes-the-physical-and-team-tactical-performance-of-elite-soccer-players-in-small-sided-soccer-games
#17
Sigrid B H Olthof, Wouter G P Frencken, Koen A P M Lemmink
Small-sided games (SSGs) are used in training sessions to prepare for full-sized matches. For the same number of players, smaller pitch sizes result in decreased physical performance and shorter interpersonal distances. A relative pitch area derived from the full-sized match results in larger pitch sizes and this may increase the fit between SSGs and full-sized matches. This study aimed to investigate SSGs with a traditional small pitch and a match-derived relative pitch area in youth elite soccer players. Four age categories (under-13, under-15, under-17 and under-19) played 4 vs...
November 10, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29119246/skeletal-muscle-and-performance-adaptations-to-high-intensity-training-in-elite-male-soccer-players-speed-endurance-runs-versus-small-sided-game-training
#18
Dan Fransson, Tobias Schmidt Nielsen, Karl Olsson, Tobias Christensson, Paul S Bradley, Ioannis G Fatouros, Peter Krustrup, Nikolai Baastrup Nordsborg, Magni Mohr
PURPOSE: To examine the skeletal muscle and performance responses across two different exercise training modalities which are highly applied in soccer training. METHODS: Using an RCT design, 39 well-trained male soccer players were randomized into either a speed endurance training (SET; n = 21) or a small-sided game group (SSG; n = 18). Over 4 weeks, thrice weekly, SET performed 6-10 × 30-s all-out runs with 3-min recovery, while SSG completed 2 × 7-9-min small-sided games with 2-min recovery...
November 8, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29118716/etiology-and-recovery-of-neuromuscular-fatigue-following-competitive-soccer-match-play
#19
Callum G Brownstein, Jack P Dent, Paul Parker, Kirsty M Hicks, Glyn Howatson, Stuart Goodall, Kevin Thomas
Aim: Previous research into the etiology of neuromuscular fatigue following competitive soccer match-play has primarily focused on peripheral perturbations, with limited research assessing central nervous system function in the days post-match. The aim of the present study was to examine the contribution and time-course of recovery of central and peripheral factors toward neuromuscular fatigue following competitive soccer match-play. Methods: Sixteen male semi-professional soccer players completed a 90-min soccer match...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29117025/heads-up-the-presentation-of-schizoaffective-disorder-in-an-elite-college-soccer-player-with-prior-concussion
#20
Solomon J Adelsky, Simon Ducharme, Emily K Wilner, Benjamin Yudkoff, Simon Lejeune
No abstract text is available yet for this article.
November 2017: Harvard Review of Psychiatry
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