12,662 results match your criteria soccer

Elite professional goalkeepers report high rate of sport resumption after shoulder surgery.

Knee Surg Sports Traumatol Arthrosc 2021 Jun 15. Epub 2021 Jun 15.

Shoulder and Elbow Unit, Department of Orthopedic and Trauma Surgery, Humanitas Clinical and Research Center, IRCCS, via Manzoni 56, Rozzano, 20089, Milan, Italy.

Purpose: The aim of this study is to evaluate the return to sport after surgical treatment of shoulder injuries in professional goalkeepers in relationship with the mechanism of injury and the pattern of related shoulder lesions.

Methods: Twenty-six shoulders in nineteen elite male professional soccer goalkeepers were retrospectively analyzed considering multiple diseases (instability, rotator cuff, biceps or other tendon injuries). Data was collected for injury modality and context, pathological findings, surgical procedures, time, level of return to sport, and complications. Read More

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Effect of playing position, passage duration and starting status on the most demanding passages of match play in professional football.

Res Sports Med 2021 Jun 14:1-10. Epub 2021 Jun 14.

Health Research Centre, University of Almería, Almería, Spain.

The aims of this research were to analyse the effect that different playing positions, passage durations and starting status had on the most demanding passages (MDP) of play in professional football matches. Players were categorized by positions and the MDP of distance (DIS), high-speed running distance (HSRD) and sprinting distance (SPD) were analysed for four passage durations (1, 3, 5 and 10 minutes). The results indicated that DIS ( < 0. Read More

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The importance of biomechanical assessment after Return to Play in athletes with ACL-Reconstruction.

Gait Posture 2021 Jun 8;88:240-246. Epub 2021 Jun 8.

Department of Basic Medical Sciences, Neuroscience and Sense Organs, School of Medicine, University of Bari "Aldo Moro", AOU Consorziale Policlinico, Piazza Giulio Cesare 11, 70124 Bari, Italy; Orthopaedic & Trauma Unit, AOU Consorziale Policlinico, Piazza Giulio Cesare 11, 70124 Bari, Italy.

Background: Barriers to successful return to previous level of activity following Anterior Cruciate Ligament Reconstruction (ACLR) are multifactorial and recent research suggests that athletic performance deficits persist after completion of the rehabilitation course in a large percentage of patients.

Research Question: Do technology-based biomechanical assessments reveal underneath differences in both recreational and competitive athletes in Return to Play after ACL-Reconstruction?

Methods: Thirty soccer athletes (26.9 ± 5. Read More

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Nationwide Subjective and Objective Assessments of Potential Talent Predictors in Elite Youth Soccer: An Investigation of Prognostic Validity in a Prospective Study.

Front Sports Act Living 2021 28;3:638227. Epub 2021 May 28.

Institute of Sports Science, Eberhard Karls University of Tübingen, Tübingen, Germany.

Recent studies have provided empirical evidence on the prognostic relevance of objective performance diagnostics in the soccer talent identification and development process. However, little is known about the prognostic validity of coaches' subjective evaluations of performance. This study evaluated objective and subjective assessments within a nationwide talent development program and addressed motor, perceptual skill, and personality-related performance factors. Read More

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Sprint Mechanical Characteristics of Female Soccer Players: A Retrospective Pilot Study to Examine a Novel Approach for Correction of Timing Gate Starts.

Front Sports Act Living 2021 28;3:629694. Epub 2021 May 28.

Faculty of Sport and Physical Education, University of Belgrade, Belgrade, Serbia.

The purpose of this study was to compare model estimates of linear sprint mechanical characteristics using timing gates with and without time correction. High-level female soccer players ( = 116) were evaluated on a 35-m linear sprint with splits at 5, 10, 20, 30, and 35 m. A mono-exponential function was used to model sprint mechanical metrics in three ways: without a time correction, with a fixed (+0. Read More

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Physiological Monitoring Detected Changes During Women's Soccer Anterior Cruciate Ligament Injury.

Cureus 2021 May 4;13(5):e14838. Epub 2021 May 4.

Division of Sports Medicine, Department of Orthopaedic Surgery, University of Cincinnati College of Medicine, Cincinnati, USA.

A growing number of studies utilizing wearable technologies are examining the influence of the autonomic nervous system (ANS) on intense training, recovery, and injury risk. Exercise biometric (EB) data were collected on collegiate, female soccer players during a preseason camp. One player sustained an anterior cruciate ligament (ACL) injury. Read More

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Shoulder Isokinetic Strength Balance Ratio in Overhead Athletes: A Cross-Sectional Study.

Int J Sports Phys Ther 2021 Jun 1;16(3):827-834. Epub 2021 Jun 1.

Universidade Federal de São Paulo (UNIFESP).

Background: Studies have grouped different overhead sports and evaluated together the isokinetic strength of shoulder internal (IR) and external (ER) rotator muscles. However, muscular adaptations could be a consequence of the specific sport, and some strength imbalance between these muscles may exist as a consequence of the muscular demand unique to the sport. Therefore, grouping different overhead sports together may not be adequate. Read More

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Differences in Muscle Activities and Kinematics between Forefoot Strike and Rearfoot Strike in the Lower Limb during 180° Turns.

Int J Sports Phys Ther 2021 Jun 1;16(3):715-723. Epub 2021 Jun 1.

University of Tsukuba, Ibaraki, Japan.

Background: A forefoot strike (FFS) could be a safer landing technique than a rearfoot strike (RFS) during a cutting motion to prevent anterior cruciate ligament (ACL) injury.

Purpose: This study aimed to determine the joint angles, ground reaction force (GRF), and muscle activity levels associated with FFS and RFS landings during 180° turns.

Study Design: Cross-sectional study. Read More

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Female Adolescent Soccer Players Utilize Different Neuromuscular Strategies Between Limbs During the Propulsion Phase of a Lateral Vertical Jump.

Int J Sports Phys Ther 2021 Jun 2;16(3):695-703. Epub 2021 Jun 2.

Northwestern University.

Background: Multiplanar dynamic stability is an important unilateral function in soccer performance but has been scarcely examined in female soccer players. The lateral vertical jump task assesses unilateral functional performance, and energy generation contribution examines how each joint (hip, knee, ankle) contributes to the vertical component of the vertical jump phase to measure inter- and intra-limb differences.

Purpose: To examine dominant versus non-dominant limb performance using energy generation contribution of the hip, knee, and ankle during the vertical jump component of the lateral vertical jump. Read More

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Biomechanical Changes During a 90º Cut in Collegiate Female Soccer Players With Participation in the 11.

Int J Sports Phys Ther 2021 Jun 2;16(3):671-680. Epub 2021 Jun 2.

Biomechanics and Movement Science, University of Delaware; Physical Therapy, University of Delaware.

Background: Valgus collapse and high knee abduction moments have been identified as biomechanical risk factors for ACL injury. It is unknown if participation in the 11+, a previously established, dynamic warm-up that emphasizes biomechanical technique and reduces ACL injury rates, reduces components of valgus collapse during a 90º cut.

Hypothesis/purpose: To determine whether participation in the 11+ during a single soccer season reduced peak knee abduction moment and components of valgus collapse during a 90º cut in collegiate female soccer players. Read More

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Are Soccer and Futsal Affected by the Relative Age Effect? The Portuguese Football Association Case.

Front Psychol 2021 28;12:679476. Epub 2021 May 28.

Portugal Football School, Portuguese Football Federation (FPF), Oeiras, Portugal.

A better understanding of the relative age effect (RAE) in youth will increase the awareness of the need for reducing the bias of (de)selection. Thus, we investigated the RAE in youth female and male soccer and futsal players in Portugal, using nationwide data. Birthdates of 5,306 female and 126,285 male soccer players, and 2,437 female and 23,988 male futsal players (U7-U19), registered in Portugal during the season 2019-2020, and Portuguese National teams (from U15 to AA soccer teams and from U17 to AA futsal teams) were analyzed. Read More

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Design and Validation of an Observational System for Penalty Kick Analysis in Football (OSPAF).

Front Psychol 2021 28;12:661179. Epub 2021 May 28.

Chair for Performance Analysis and Sport Informatics, Department of Sports and Health Sciences, Technical University of Munich, Munich, Germany.

The analysis of penalty kick has played an important role in performance analysis. The study aims are to get formal feedback on the relevance of variables for penalty kick analysis, to design and validate an observational system; and to assess experts' opinion on the optimum video footage in penalty kick analysis. A structured development process was adopted for content validity, reliability and agreement on video usage. Read More

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Adverse Childhood Experiences and Mindfulness in Chinese College Students During the COVID-19 Pandemic.

Front Psychiatry 2021 26;12:619128. Epub 2021 May 26.

Institute of Social Development, Wenzhou University, Wenzhou, China.

Mindfulness has been found to have many positive effects on life outcomes, including mental health and educational achievement. However, less is known about the antecedents of mindfulness, particularly in Chinese college students. This study examines the effect of adverse childhood experiences (ACEs) on mindfulness among Chinese college students in September 2020, during the COVID-19 pandemic. Read More

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Relationships between RPE-derived internal training load parameters and GPS-based external training load variables in elite young soccer players.

Res Sports Med 2021 Jun 14:1-16. Epub 2021 Jun 14.

Faculty of Education and Sports Sciences, University of Vigo, Pontevedra, Spain.

This study aimed to identify the GPS-based external training load variables that influence the internal training loads (RPE-derived parameters: RPE and session RPE - sRPE), and generate a model to predict GPS-based external load variables from RPE and perceived wellness values. Training load data for 21 elite young players were collected over 72 training sessions and 23 matches from the same competitive season, and 564 observations (training sessions, 462; matches, 102) were analysed. Considering all observations (training sessions and matches), significant moderate and large correlations (p < 0. Read More

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Dietary and Ergogenic Supplementation to Improve Elite Soccer Players' Performance.

Haniel Fernandes

Ann Nutr Metab 2021 Jun 11:1-7. Epub 2021 Jun 11.

Nutrition Department, Estácio de Sá College, Fortaleza, Brazil.

Background: Soccer is an extremely competitive sport, where the most match important moments can be defined in detail. Use of ergogenic supplements can be crucial to improve the performance of a high-performance athlete. Therefore, knowing which ergogenic supplements are important for soccer players can be an interesting strategy to maintain high level in this sport until final and decisive moments of the match. Read More

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Assessment of diet quality and physical activity of soccer players aged 13 to 16, from the Principality of Asturias, Spain.

An Pediatr (Engl Ed) 2021 Jun 9. Epub 2021 Jun 9.

Equipo de Investigación PRECAM, Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, Spain; Facultad de Medicina y Ciencias de la Salud, Universidad de Oviedo, Oviedo, Spain; Área Sanitaria 3, Servicio de Salud del Principado de Asturias, Avilés, Spain.

Introduction: Diet and physical activity are factors that have key roles in childhood overweight and obesity prevention. Appropriate assessment of these factors is an essential task in public health.

Objective: The main aims of the study are to assess body composition, physical activity, and adherence to Mediterranean diet of soccer players, aged 13 to 16 years old in Asturias, Spain. Read More

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Rider Energy Expenditure During High Intensity Horse Activity.

J Equine Vet Sci 2021 Jul 8;102:103463. Epub 2021 Apr 8.

Texas A&M University, Department of Health and Kinesiology, College Station, TX.

Despite the fact that horseback riding is a popular sport, there is little information available on horseback riding as a physical activity. The objective of this experiment was to quantify energy expenditure of participants (n=20) during three riding tests: a 45min walk-trot-canter ride (WTC), a reining pattern ride and a cutting simulation ride while wearing a telemetric gas analyzer. Total energy expenditure (tEE), mean and peak metabolic equivalents of task (MET), heart rate (HR), respiratory frequency (RF), relative oxygen consumption (relVO), and respiratory exchange ratio (RER) were assessed. Read More

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Reliability, validity, and maturation-related differences of frontal and sagittal plane landing kinematic measures during drop jump and tuck jump screening tests in male youth soccer players.

Phys Ther Sport 2021 May 28;50:206-216. Epub 2021 May 28.

Department of Physical Activity and Sport, Faculty of Sport Sciences, Campus of Excellence Mare Nostrum, University of Murcia, Murcia, Spain; Sports and Musculoskeletal System Research Group (RAQUIS), University of Murcia, Murcia, Spain.

Objectives: To determine the inter-rater and intra-rater reliability of frontal and sagittal plane landing kinematic measures during drop jump (DVJ) and tuck jump (TJA) tasks in male youth soccer players, to assess the concurrent validity between DVJ and TJA tests, and to evaluate the ability of both tasks to detect differences between players' stage of maturation.

Design: Cross-sectional study.

Participants: 223 male youth soccer players. Read More

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The Efficacy of Heat Acclimatization Pre-World Cup in Female Soccer Players.

Front Sports Act Living 2021 25;3:614370. Epub 2021 May 25.

Division of Sports Medicine and School of Kinesiology, University of British Columbia, Vancouver, BC, Canada.

The efficacy of a 14-day field-based heat acclimatization (HA) training camp in 16 international female soccer players was investigated over three phases: phase 1: 8 days moderate HA (22. 1°C); phase 2: 6 days high HA (34.5°C); and phase 3: 11 days of post-HA (18. Read More

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The Influence of Social Support and Ability Perception on Coping Strategies for Competitive Stress in Soccer Players: The Mediating Role of Cognitive Assessment.

Front Psychol 2021 25;12:554863. Epub 2021 May 25.

College of Physical Education, Sichuan Normal University, Chengdu, China.

To explore the effect of social support and ability perception on stress coping strategies for competitive stress, and to reveal the mediating effects of primary and secondary evaluation, so as to further improve the theoretical model of stress coping in soccer players. A total of 331 male athletes from 22 teams in the Chengdu Middle School Campus Football League were taken as survey samples, and surveys were conducted on their stress experience, social support, ability perception, cognitive assessment, and coping strategies for competition stress. SPSS 21. Read More

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Assessment of Muscle Volume Using Magnetic Resonance Imaging (MRI) in Football Players after Hamstring Injuries.

Eur J Sport Sci 2021 Jun 10:1-17. Epub 2021 Jun 10.

Institute for Diagnostic and Interventional Radiology, Goethe University Frankfurt, Frankfurt am Main, Germany.

Muscle injuries of the hamstrings are among the most frequent in football and a main cause for significant time away from training and competition. The purpose of this study was to prospectively evaluate the loss of muscle volume in recreational football players three and six weeks after initial trauma. We hypothesized that significant muscle volume loss occurs within 6 weeks after the initial injury event. Read More

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Age at Nomination Among Soccer Players Nominated for Major International Individual Awards: A Better Proxy for the Age of Peak Individual Soccer Performance?

Front Psychol 2021 24;12:661523. Epub 2021 May 24.

Department of Neuromedicine and Movement Science, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway.

Individual soccer performance is notoriously difficult to measure due to the many contributing sub-variables and the variety of contexts within which skills must be utilised. Furthermore, performance differs across rather specialised playing positions. In research, soccer performance is often measured using combinations of, or even single, sub-variables. Read More

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Improvement of Physical Performance Following a 6 Week Change-of-Direction Training Program in Elite Youth Soccer Players of Different Maturity Levels.

Front Physiol 2021 24;12:668437. Epub 2021 May 24.

Tunisian Research Laboratory, Sport Performance Optimization, National Center of Medicine and Science in Sports (CNMSS), Tunis, Tunisia.

Change-of-direction (CoD) is a necessary physical ability of a field sport and may vary in youth players according to their maturation status. The aim of this study is: to compare the effectiveness of a 6-week CoD training intervention on dynamic balance (CS-YBT), horizontal jump (5JT), speed (10 and 30-m linear sprint times), CoD with (15 m-CoD + B) and without (15 m-CoD) the ball, in youth male soccer players at different levels of maturity [pre- and post-peak height velocity (PHV)]. Thirty elite male youth soccer players aged 10-17 years from the Tunisian first division participated in this study. Read More

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Reliability and Sensitivity of Reaction Time Measurements During Quasi-Realistic Soccer Situations.

Motor Control 2021 Jun 9:1-11. Epub 2021 Jun 9.

University of Granada.

Reliability and sensitivity of reaction time (RT) during quasi-realistic soccer situations was explored in 10 professional soccer players (skilled; age = 20.9 ± 3.6 years) and 10 males without soccer experience (nonskilled; age = 23. Read More

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[Two Cases of Renal Pelvic Rupture Due to Trauma in a Patient with Ureteropelvic Junction Stenosis].

Hinyokika Kiyo 2021 Apr;67(4):141-145

The Department of Urology, Ijinkai Takeda General Hospital.

A pathologic kidney with hydronephrosis is prone to rupture after minor trauma to the renal pelvis ; however, it is controversial whether drainage, such as nephrostomy and ureteral stenting, should be performed in this setting. Herein we report traumatic rupture of the renal pelvis in 2 patients with ureteropelvic junction stenosis at two centers. Case 1 : A 15-year-old boy sustained a blunt injury on his left back while playing football. Read More

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Return-to-Play Times and Player Performance After ACL Reconstruction in Elite UEFA Professional Soccer Players: A Matched-Cohort Analysis From 1999 to 2019.

Orthop J Sports Med 2021 May 28;9(5):23259671211008892. Epub 2021 May 28.

Department of Orthopaedic Surgery, The Winnipeg Clinic, Winnipeg, Manitoba, Canada.

Background: Anterior cruciate ligament (ACL) rupture is one of the most common injuries afflicting soccer players and requires a lengthy recovery processes after reconstructive surgery. The impact of ACL reconstruction (ACLR) on return to play (RTP) time and player performance in professional soccer players remains poorly studied.

Purpose/hypothesis: To determine player performance and RTP rate and time after ACLR in elite professional soccer players with a retrospective matched-cohort analysis. Read More

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Psychological and Physiological Changes in Response to the Cumulative Demands of a Women's Division I Collegiate Soccer Season.

J Strength Cond Res 2021 Jun 3. Epub 2021 Jun 3.

Department of Exercise Science, the University of South Carolina, Columbia, South Carolina; Institute for Food, Nutrition, and Health (IFNH), Rutgers, the State University of New Jersey, New Brunswick, New Jersey; Department of Exercise Science, Lebanon Valley College, Annville, Pennsylvania; and School of Social and Health Sciences, Leeds Trinity University, Leeds, United Kingdom.

Abstract: McFadden, BA, Walker, AJ, Bozzini, BN, Hofacker, M, Russell, M, and Arent, SM. Psychological and physiological changes in response to the cumulative demands of a women's division I collegiate soccer season. J Strength Cond Res XX(X): 000-000, 2021-This study sought to determine the effects of a women's collegiate soccer season on psychological markers, biomarkers, sleep, and performance. Read More

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Effects of the COVID-19 Lockdown on Neuromuscular Performance and Body Composition in Elite Futsal Players.

J Strength Cond Res 2021 Jun 3. Epub 2021 Jun 3.

UCAM Research Center for High Performance Sport, Catholic University of Murcia, Murcia, Spain; Faculty of Sport Sciences, Catholic University of Murcia, Murcia, Spain; Strength and Conditioning Society, Rome, Italy; Research Group Murcia Soccer Federation, Murcia, Spain; Sports Science Center (CCD), Colombian Ministry of Sport (Mindeporte), Bogotá, Colombia; Masira Research Institute, University of Santander (UDES), Bucaramanga, Colombia; Laboratory of Analysis of Sport Performance, University of Basque Country, Vitoria, Spain; Faculty of Kinesiology, University of Zagreb, Zagreb, Croatia; NAR-Nucleus of High Performance in Sport, São Paulo, Brazil; Department of Human Movement Sciences, Federal University of São Paulo, São Paulo, Brazil; and Department of Sport and Exercise, University of South Wales, Pontypridd, Wales.

Abstract: Spyrou, K, Alcaraz, PE, Marín-Cascales, E, Herrero-Carrasco, R, Cohen, DD, Calleja-Gonzalez, J, Pereira, LA, Loturco, I, and Freitas, TT. Effects of the COVID-19 lockdown on neuromuscular performance and body composition in elite futsal players. J Strength Cond Res XX(X): 000-000, 2021-Recent world events (i. Read More

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Injury risk profile of amateur Irish women soccer players and players' opinions on risk factors and prevention strategies.

Phys Ther Sport 2021 Jun 1;50:184-194. Epub 2021 Jun 1.

School of Allied Health, Health Research Institute, University of Limerick (UL), Limerick, Ireland; Ageing Research Centre, Health Research Institute, University of Limerick, Limerick, Ireland. Electronic address:

Objective: To explore injury profile, opinions on risk factors and injury prevention, among Irish amateur women soccer players.

Design: A cross-sectional online survey.

Setting: Irish amateur winter league. Read More

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Construct validity of age at predicted adult height and BAUS skeletal age to assess biological maturity in academy soccer.

Ann Hum Biol 2021 Mar;48(2):101-109

Institute of Sports and Preventive Medicine, Saarland University, Saarbrücken, Germany.

Background: The assessment of biological maturity status plays an important role in talent identification and development programs.

Aim: To compare age at predicted adult height and BAUS skeletal age as indicators of biological maturity status in youth soccer players using a construct-validity approach.

Subjects And Methods: Participants were 114 players from the U12 to U17 age groups of a professional youth soccer academy. Read More

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