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Soccer training

Michael J Ellis, Lesley J Ritchie, Patrick J McDonald, Dean Cordingley, Karen Reimer, Satnam Nijjar, Mark Koltek, Shahid Hosain, Janine Johnston, Behzad Mansouri, Scott Sawyer, Norm Silver, Richard Girardin, Shannon Larkins, Sara Vis, Erin Selci, Michael Davidson, Scott Gregoire, Angela Sam, Brian Black, Martin Bunge, Marco Essig, Peter MacDonald, Jeff Leiter, Kelly Russell
OBJECTIVES: To summarize the clinical characteristics and outcomes of pediatric sports-related concussion (SRC) patients who were evaluated and managed at a multidisciplinary pediatric concussion program and examine the healthcare resources and personnel required to meet the needs of this patient population. METHODS: We conducted a retrospective review of all pediatric SRC patients referred to the Pan Am Concussion Program from September 1st, 2013 to May 25th, 2015...
October 24, 2016: Canadian Journal of Neurological Sciences. le Journal Canadien des Sciences Neurologiques
Brun Jean-Frédéric, Varlet-Marie Emmanuelle, Fédou Christine, Raynaud de Mauverger Eric
We investigated to what extent a prediction of the 'ideal' hematocrit based on individual hemorheological profile with an equation of viscosity is relevant in trained athletes, and how the agreement between theoretical and actual values is modified by changes in training volume and performance. Elite soccer players (national level: 18-32 yr, weight 61-83 kg, body mass index 20.9-25.8 kg/m2) were seen twice at one year interval. Hemorheologic parameters were measured with the MT90 viscometer and the Myrenne aggregometer the theoretical bell-shaped curve of hematocrit/viscosity ratio as a function of hematocrit was reconstructed with Quemada's equation using actual plasma viscosity and red cell rigidity to predict hematocrit/viscosity at various hematocrit levels...
October 15, 2016: Clinical Hemorheology and Microcirculation
Rosario Scarfone, Antonio Ammendolia
BACKGROUND: The aim of this study was to investigate the physiological demands and technical-tactical performances of field players in Italian elite beach soccer team. METHODS: Three official matches of the Italian First Division beach soccer tournament were analyzed to evaluate the heart rate (HR) and time-motion analysis considering: standing, walking, jogging, running and sprinting, and technical-tactical aspects. Repeated-measures ANOVAs were used to determine the effects of time on the physiological measures and time motion analysis...
October 20, 2016: Journal of Sports Medicine and Physical Fitness
Noortje H Rijken, Remko Soer, Ewold de Maar, Hilco Prins, Wouter B Teeuw, Jan Peuscher, Frits G J Oosterveld
The aim of this pilot study was to investigate the effects of an intervention consisting of mental coaching combined with either electro encephalogram (EEG) alpha power feedback or heart rate variability (HRV) feedback on HRV, EEG outcomes and self-reported factors related to stress, performance, recovery and sleep quality in elite athletes. A prospective pilot study was performed with two distinct cohorts. Soccer players were provided with four sessions of mental coaching combined with daily HRV biofeedback (Group A); track and field athletes were provided with four sessions of mental coaching in combination with daily neurofeedback (Group B)...
October 19, 2016: Applied Psychophysiology and Biofeedback
Angel Ric, Carlota Torrents, Bruno Gonçalves, Jaime Sampaio, Robert Hristovski
This study aimed to identify the tactical patterns and the timescales of variables during a soccer match, allowing understanding the multilevel organization of tactical behaviors, and to determine the similarity of patterns performed by different groups of teammates during the first and second halves. Positional data from 20 professional male soccer players from the same team were collected using high frequency global positioning systems (5 Hz). Twenty-nine categories of tactical behaviors were determined from eight positioning-derived variables creating multivariate binary (Boolean) time-series matrices...
2016: Frontiers in Psychology
Jared J Murray, Colleen M Renier, Jenny J Ahern, Barbara A Elliott
OBJECTIVE: To document neuromuscular training (NMT) availability and its relationship to anterior cruciate ligament (ACL) injuries in 4 major high school sports by gender, sport, and rural/urban geography, with the hypothesis that increased exposure to NMT would be associated with fewer ACL injuries. DESIGN: A retrospective cohort study. SETTING: All Minnesota high schools identified in the Minnesota State High School League (MSHSL) database for fall 2014 boys' football and soccer, and girls' volleyball and soccer...
October 17, 2016: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
Leo Djaoui, Karim Chamari, Adam Owen, Alexandre Dellal
The aim of the present study was to compare 1) the maximal sprinting speed (MSS) attained by soccer players during matches (MSSmatch) according to their level of play (professional 1st French division vs. elite amateur 4th French division) and the playing positions; and 2) the MSS attained by professional soccer players during 14 different types of small-sided games (SSG, MSSSSG) and match-play. All players monitored through the study performed a 40-m sprint test to assess individual MSS (MSStest) and compare it to the training and match activity, with the calculation of the percentage of MSStest (%MSStest) reached...
September 23, 2016: Journal of Strength and Conditioning Research
Austyn L Nealer, Dustin D Dunnick, Kylie K Malyszek, Megan A Wong, Pablo B Costa, Jared W Coburn, Lee E Brown
Speed is a crucial element an athlete must possess to be successful. In soccer, the ability to accelerate faster than your opponent can result in being first to reach a ball on a breakaway or stopping a counter attack. A unique way to train explosive movements is to evoke postactivation potentiation (PAP) in the working muscles. Traditionally, an overload stimulus with a long rest period is used, but a model utilizing an overspeed stimulus with shorter rest periods is less understood. Therefore, the purpose of this study was to determine the acute effects of varied rest intervals following assisted sprinting on bodyweight sprint time...
October 6, 2016: Journal of Strength and Conditioning Research
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 analysing what happens with this ability after small-sided games (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 counter movement jump) tests before and after 5-weeks of pre- season training using fundamentally SSGs...
October 13, 2016: Journal of Sports Medicine and Physical Fitness
J O'Brien, W Young, C F Finch
The efficacy of injury prevention exercise programs (IPEPs) for amateur youth soccer has been established, but little is known about their adaptability to other soccer populations. This study aimed to assess the use of individual injury prevention exercises by professional youth soccer teams, against the industry-standard, FIFA 11+ program. Four teams' chosen IPEPs were observed across one season and documented on a standardized form. The use of each FIFA 11+ exercise was coded as "performed", "performed modified" or "not performed"...
October 7, 2016: Scandinavian Journal of Medicine & Science in Sports
Wassim Moalla, Mohamed Saifeddin Fessi, Fayçal Farhat, Sabeur Nouira, Del P Wong, Grégory Dupont
We studied the relationship between daily training load (TL) experienced by professional soccer players and the Hooper questionnaire reflecting their perceived quality of sleep, fatigue, stress and delayed onset muscle soreness. During a 16-week training period, the rating of perceived exertion and duration were collected after each training session, and daily TL was calculated from 14 professional soccer players. The Hooper questionnaire was completed every day before the first training session and the Hooper's score (HS) was then calculated...
October 7, 2016: Research in Sports Medicine
Pamela J Magee, Alison M Gallagher, Jacqueline M McCormack
Although dehydration of ≥2% body weight (BW) loss significantly impairs endurance performance, dehydration remains prevalent among athletes and may be owing to a lack of knowledge in relation to fluid requirements. The aim of this study was to assess the hydration status of university/club level athletes (n=430) from a range of sports/activities (army officer cadet training; bootcamp training; cycling; Gaelic Athletic Association camogie, football and hurling; golf; hockey; netball; rugby; running (sprinting and endurance); Shotokan karate and soccer) immediately before and after training/competition and to assess their nutritional knowledge...
October 6, 2016: International Journal of Sport Nutrition and Exercise Metabolism
I Loturco, F Y Nakamura, R Kobal, S Gil, B Pivetti, L A Pereira, H Roschel
It is unknown whether traditional periodization of strength-power training involving accumulation, transformation and realization blocks is superior to other simpler and more practical training schemes. The purpose of this study was thus to investigate changes in strength/power/speed characteristics of elite soccer players in response to either classic strength-power periodization (TSP) or optimum power load (OPL). 23 professional soccer players were randomly assigned to TSP or OPL for 6 weeks in-season regular training (3 times per week)...
October 5, 2016: International Journal of Sports Medicine
Mohamed Ali Hammami, Abderraouf Ben Abderrahman, Anthony C Hackney, Wiem Kebsi, Adam L Owen, Amar Nebigh, Ghazi Racil, Zouhair Tabka, Hassane Zouhal
The aim of this study was to investigate the effects of two soccer-training seasons on physical fitness and hormone concentrations in elite youth soccer players. Twenty male elite soccer players (SP, age 14.5 ± 0.4 years) and 20 male control subjects (CS, age 14.3 ± 0.3years) participated to the study. Anthropometric measurements, aerobic (Yo-Yo Intermittent Recovery Test Level 1 (YYIRT1)) and anaerobic soccer relevant performances (jump and sprint tests), blood testosterone (T), cortisol (C),sex hormone binding globulin (SHBG) and T/C ratio were assessed 5 times (from T0 to T4) during two competitive seasons...
September 23, 2016: Journal of Strength and Conditioning Research
John R Harry, Leland A Barker, John A Mercer, Janet S Dufek
There is a wealth of research on impact force characteristics when landing from a jump. However, there are no data on impact forces during landing from a jump with an airborne rotation about the vertical axis. We examined impact force parameters in the vertical and horizontal axes during vertical jump (VJ) landings and vertical jump landings with a 180-degree rotation (VJR). Twenty-four Division 1 male soccer players performed three VJ and VJR landings on a dual-force platform system. Paired-samples t-tests (α=0...
September 22, 2016: Journal of Strength and Conditioning Research
Fábio Y Nakamura, Lucas A Pereira, Irineu Loturco, Marcelo Rosseti, Felipe A Moura, Paul S Bradley
The main objective of this study was to characterize the occurrence of single sprint and repeated-sprint sequences (RSS) during elite female soccer matches, using fixed (20 kmh) and individually based speed thresholds (>90% of the mean speed from a 20 m sprint test). Eleven elite female soccer players from the same team participated in the study. All players performed a 20 m linear sprint test, and were assessed in up to 10 official matches using Global Positioning System (GPS) technology. Magnitude-based inferences were used to test for meaningful differences...
September 20, 2016: Journal of Strength and Conditioning Research
Carlo Signorelli, Anna Odone, Alessia Miduri, Paola Cella, Cesira Pasquarella, Armando Gozzini, Pasquale Tamburrino, Enrico Castellacci
Scant data is available on immunization policies and practices among professional athletes. Following up on a recent review on the topic, we conducted a survey among Italian Serie A soccer teams during the influenza season 2015-16, to explore vaccination practices and attitudes as well as influenza vaccine uptake. The survey covered a sample of over 600 professional athletes from 20 teams and was carried out in collaboration with the Italian Association of Physicians of Professional Football Teams (L.A.M.I...
September 13, 2016: Acta Bio-medica: Atenei Parmensis
Jocelyn K Mara, Kevin G Thompson, Kate L Pumpa, Stuart Morgan
The aim of this study was to determine the high-speed running and sprinting profiles of elite female soccer players during competitive matches using a new Optical Player Tracking System. Eight stationary video cameras were positioned at vantage points surrounding the soccer field so that when each camera view was combined the entire field could be viewed simultaneously. Following each match, an optical player tracking system detected the coordinates (x,y) of each player for every video frame. Algorithms applied to the x and y coordinates were used to determine activity variables for twelve elite female players across seven competitive matches...
September 6, 2016: Journal of Strength and Conditioning Research
Robert J Naughton, Barry Drust, Andy O'Boyle, Ryland Morgans, Julie Abayomi, Ian G Davies, James P Morton, Elizabeth Mahon
While traditional approaches to dietary analysis in athletes have focused on total daily energy and macronutrient intake, it is now thought that daily distribution of these parameters can also influence training adaptations. Using seven-day food diaries, we quantified the total daily macronutrient intake and distribution in elite youth soccer players from the English Premier League in U18 (n=13), U15/16 (n=25) and U13/14 squads (n=21). Total energy (43.1±10.3, 32.6±7.9, 28.1±6.8 kcal·kg(-1)·day(-1)), CHO (6±1...
August 24, 2016: International Journal of Sport Nutrition and Exercise Metabolism
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
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