The aim of the present study was to assess accuracy a multi-camera tracking system (Mediacoach®) track elite football players' movements in real time. A total 207 observations 38 official matches from Liga 1, 2, 3™ (2nd Spanish Division, season 2017/18) were included (88 defenders, 84 midfielders, and 35 attackers same team). Total distance (TD, m) zone 4 (DZ4) at speed 14-21 km/h, 5 (DZ5) 21-24 km/h (DZ5), 6 (DZ6) ≥24 maximum (km/h), number sprints (actions above 24 km/h) registered with...

The aim of this study was to analyse whether there are differences in bone mass girls playing different sports. Two hundred (10.6 ± 1.5 years old, Tanner stages I–III) participated the and were divided into groups 40 (swimmers, soccer players, basketball handball players controls). Bone mineral content density (BMD) (whole body hip) measured using dual-energy X-ray absorptiometry. degree sexual development determined test, physical activity habits recorded through a questionnaire designed ad...

The aim of this research was to evaluate the influence mechanical properties artificial turf systems on soccer players' performance. A battery perceptive physiological and physical tests were developed four different structural (System 1: Compacted gravel sub-base without elastic layer; System 2: with 3: Asphalt 4: layer). sample composed 18 players (22.44±1.72 years) who typically train compete turf. system less rotational traction (S3) showed higher total time in Repeated Sprint Ability...

The aim of this study was to evaluate the effect a repeated sprint ability (RSA) test on contractile properties muscles in elite futsal players. A total 20 players completed RSA (7 × 30 m), and response from rectus femoris (RF) biceps (BF) both legs were analysed pre post through tensiomyography. There significant increment 30-m times third onwards (p < 0.05). percent decrement (RSADEC) with respect first significantly higher last sprint. did not show evidence lateral asymmetry any muscle...

The aim of this study was to analyze the differences in body composition and physical fitness according weight status (normoweight, overweight obese) level adherence Mediterranean diet (MD; low, medium or high), physically active children adolescents. Furthermore, also analyzed relationship between with Body Mass Index (BMI), fat mass MD. In total, 1676 participants aged 6–17 from different municipal sports schools participated cross-sectional study. Data on MD (a KIDMED questionnaire),...

Background: Beach handball (BH) is a sport in which sporting performance influenced, together with team interaction, by individual terms of strength. Body composition one the main factors for sports and eating habits can condition this variable. The Mediterranean diet (MD) significantly reduce risk mortality or cardiovascular disease. In addition, Spanish Ministry Agriculture, Food Environment carries out different campaigns to promote it among young athletes, establishing as suitable...

This study aims to investigate how accumulated training load over different time windows (7, 14, and 28 days) influences the incidence of hamstring injuries in elite football players. A descriptive longitudinal was developed 343 players three teams (2nd Team, U-19 team, U-18 team) from academy an club Spanish La Liga that also competed Union European Football Associations Champions League during four seasons, 2017/18 2020/21. External variables (total distance, high-speed running,...

Introduction: The main aim of this study was to examine the effects detraining period based on initial physical fitness level determined through Total Score Athleticism (TSA) in female soccer players. Material and method: Fourteen football players underwent pre- post-detraining (i.e., 2 weeks) assessments, which included a countermovement jump test (CMJ), 30-meter sprint test, repeated ability (RSA: 8 sprints 30 meters with 25 seconds recovery). were classified TSA obtained before (TSAB =...

Previous studies have analysed the influence of contextual variables on performance and physical demands in soccer. However, points needed to remain category been an element that has not previously. The aim present study was investigate match location, period, strength opponent required keep professional soccer players. Fourteen Spanish second B Division League matches played by a football team were during 2016/17 season using GPS devices. 10 main players each used throughout match. Total...

The current study aimed at analyzing the relationship between body composition, adherence to Mediterranean diet (MD), and physical fitness (PF) in a young active population. A total of 1198 athletes (boys = 875; girls 323) enrolled different municipal sports schools participated this study. Data on MD (KIDMED questionnaire), anthropometric measurements, PF (20 m shuttle run test, handgrip strength, vertical jump forced spirometry) were collected. Results show that pubertal boys had higher...

The aim of this study was to analyze the influence match half and playing position on physical requirements in Spanish Professional Futsal League players during official games. external load from distance, speed, acceleration deceleration variables were obtained fourteen elite futsal 10 matches 2019–2020 season using a Local Positioning System with ultra-wideband technology installed pitch. results revealed similar between first second (p &gt; 0.05). Wingers demonstrated greater high-speed...

Abstract Background This study aimed to analyze the associations of maturity status, chronological age and sex with physical fitness body composition among active children. Methods A total 1682 children (72% boys; = 11.22 ± 2.64 years; height 147.57 15.87 cm; weight 44.55 15.29 kg) from rural areas participating in extracurricular sports were divided into four groups according their status (prepubertal pubertal stages described by Tanner). Body (body mass index, muscle fat mass) (20-m...

The aim of this study was to analyse the differences in A-S profile elite football players induced by playing position and microcycle day. Players belonged a second division club Spanish La Liga competition. They were classified into five positions: central defenders (CD), full backs (FB), midfielders (MF), wide (WMF) forwards (FW). Microcycle days categorised according until matchday (MD, MD-1, MD-2, MD-3, MD-4 MD-5). Data collected along six microcycles, including one match per microcycle....

Football fields of artificial turf are in constant evolution. The resulting improvements have given rise to a large diversity structural components. There various types infill and fibre for different designs materials the support structure (sub-base elastic layer). design sub-base presence or absence layer can influence performance surface’s useful lifetime. aim this study was assess situ effect structures on mechanical properties after deterioration caused by wear year. assessed were force...

The aim of this paper is to analyse different interactions the variables (age, position, or quality team and league) crowdsourcing Transfermarkt values male players in top European leagues. All (n = 2259) five most highly valued leagues—Spain, England, Italy, France, Germany—from 2017/2018 season were included study. Data retrieved from open-source football database (Transfermarkt). present economic value (VPRESENT) maximum (VMAX) all with professional contracts registered. Regression...

This study aimed to investigate morphological, functional, and neuromuscular asymmetries on futsal players' lower limbs at different competitive levels. Sixteen male elite players from the Spanish National Futsal League thirteen sub-elite third division participated in this study. Morphological asymmetry was assessed through bioelectrical impedance (fat-mass (g %) lean-mass (g)). Functional by means of a 20-second static unipedal balance test. Finally, using tensiomiography tests both rectus...

Football is a very demanding sport which requires players to exert maximum effort, producing fatigue and eventually injuries. Thermography can be used detect prevent its consequences through thermal asymmetries in the bilateral body areas; however, adequacy for elite footballers has not been widely studied. Therefore, objective of present investigation was determine suitability thermography male football players. For this reason, twenty participants were gathered into pair subgroups (low...

The demanding nature of elite football requires players to be closely monitored ensure optimal performance and minimize injury risk. This study aimed evaluate the relationship between physical demands, skin temperature, well-being status in 30 over a 12-week competitive period. Thermography assessments, weekly Well-being questionnaires, daily training match load recordings were used gather data. Results indicated that along microcycles there was decrease high-intensity accelerations...

This study examined physical and technical demands the influence of team's level on elite goalkeepers' performance during six consecutive seasons in Spanish Professional Soccer League. The data were obtained by analyzing a total 3,874 matches using multiple-camera computerized tracking system. match variables registered were: distance traveled; Sprinted number sprints; passes; successful pass percentage; recovered balls; lost ratio balls: balls, saves. results showed that saves made has...

Sánchez-Sánchez, J, García-Unanue, Felipe, JL, Jiménez-Reyes, P, Viejo-Romero, D, Gómez-López, M, Hernando, E, Burillo, and Gallardo, L. Physical physiological responses of amateur football players on third generation artificial turf systems during simulated game situations. J Strength Cond Res 30(11): 3165-3177, 2016-The aim this study is to evaluate the physical load imposed in a situation different systems. For that purpose, 20 (21.65 ± 3.10 year old) were monitored with Global...

This study aimed to analyze the differences in physical fitness variables, body composition, and adherence Mediterranean diet according cardiorespiratory maturational stage young football players. A total of 194 male players (aged 8-16) from three sport schools participated this study. Data on (the 20-m shuttle run test), anthropometric measurements, handgrip strength, respiratory capacity (forced spirometry), (KIDMED questionnaire) were collected. Players divided into two groups depending...

Refereeing is a demanding and intermittent activity that combines high-speed low-intensity action.The aim of this study to analyse the external internal load professional Spanish football referees during matches, compare physical demands between halves in different categories.The on 40 from first second divisions were recorded using global positioning system (GPS) technology heart rate bands. External (distance covered, speed, acceleration deceleration) (perceived exertion [RPE] [HR])...

The aim was to analyse the consequences of a congested schedule (due COVID-19 lockdown) on creatine kinase (CK) in elite football players using GPS tracking technology. A total 17 were monitored training and competition with global positioning system. Variables including distance, high-intensity distance acceleration deceleration analysed. Different measurements serum concentration performed match day (MD) at 24 h (MD+1), 48 (MD+2), 72 (MD+3) after each study muscle damage individual player...

Background Swimming in indoor pools treated with combined chemical treatments (e.g. ozone) may reduce direct exposure to disinfection byproducts and thus have less negative effects on respiratory function compared chlorinated pools. The aim of this study is analyze the a short-term training intervention lung epithelial damage adults exercising swimming pool waters different methods (chlorine vs. ozone bromine). Methods Lung permeability biomakers [surfactant protein D (SP-D) Clara cell...