scholarly journals Análisis de variables condicionales y técnico-tácticas mediante juegos reducidos en futbolistas semiprofesionales (Analysis of physical and technical-tactical demands through small-sided games in semi-professional football players)

Retos ◽  
2018 ◽  
pp. 87-90
Author(s):  
Víctor Torreblanca-Martínez ◽  
Rubén Cordero-Ojeda ◽  
José Antonio González-Jurado
Keyword(s):  
High Intensity ◽  
Repeated Measures ◽  
Football Players ◽  
Professional Football ◽  
Physical Domain ◽  
Total Distance ◽  
Physical Variables

Objetivo: Analizar el rendimiento en variables condicionales y técnico-tácticas en función del número de contactos permitidos en juegos reducidos en futbolistas semiprofesionales. Métodos: Ocho jugadores semiprofesionales de fútbol (21,1 ± 1,5 años; 174,7 ± 3,5 cm; 71,3 ± 4,7 kg) fueron sometidos a situaciones juego reducidos 4x4, con uno (JR1T), dos (JR2T) y tres contactos al balón (JR3T) y sin portero. Las variables condicionales medidas fueron las distancias totales recorridas (DTR), distancias a alta intensidad (DAI) y distancias a sprint (DS), y las variables técnico-tácticas evaluadas fueron el número de pases acertados (PA), los balones perdidos (BP) y el porcentaje de pases acertados (%PA). Para las comparaciones entre formatos de JR se aplicó ANOVA de medidas repetidas y para las correlaciones entre variables se calculó la r de Pearson. Resultados: Se registraron mayores valores (p < 0,05) en DTR en los JR1T (1132,7 ± 61,3) con respecto a los JR3T (1059,1 ± 88,3), así como en los JR2T (1165,7 ± 60,4) con respecto a los JR3T. La DAI y la DS es mayor (p < 0,05) en los JR2T (DAI: 145,63 ± 37; DS: 12,88 ± 7,1) que en los JR3T (DAI: 99,1 ± 33,2; DS: 5,75 ± 5,6). En cuanto a las variables técnico-tácticas, en los JR1T los PA (36,3 ± 6,4) y los BP (28 ± 4,2) fueron más numerosos (p <0,05) que en los JR2T (PA: 26,9 ± 12,2; BP: 14 ± 1,51) y en JR3T (PA: 23,8 ± 3,4; BP: 12,1 ± 2,7). El %PA fue menor (p < 0,05) en los JR1T (56,18 ± 7,82) con respecto a los JR3T (66,21 ± 7,94). Conclusiones: A nivel físico, la DTR en los JR1T fue mayor que en los JR2T y en JR3T, siendo la DAI y la DS menor en los JR3T con respecto a los JR2T. A nivel técnico-táctico, la situación de JR1T mostró más PA y menos BP que las situaciones JR2T y JR3T, siendo el %PA menor en JR1T con respecto a JR3T.Abstract. Aim: Analyzing physical and technical-tactical performance based on the number of authorized ball touches in small-sided games in semi-professional football players. Methods: Eight semi-professional football players (21,1 ± 1,5 years; 174,7 ± 3,5 cm; 71,3 ± 4,7 kg) performed 4x4 small-sided games with one touch (SG1T), two touches (SG2T) and three touches of the ball authorized (SG3T), without goalkeeper. Physical variables measured were total distance (TD), high intensity distance (HID) and sprint distance (SD). The tactical/technical variables included were number of successful passes (SP), ball losses (BL), and percentage of successful passes (%SP). Small-sided games were compared with an ANOVA of repeated measures and Pearson r was used to establish correlation between variables. Results: regarding the physical variables, higher values (p < 0,05) were obtained for TD in SG1T (1132,7 ± 61,3) compared to SG3T (1059,1 ± 88,3), and in SG2T (1165,7 ± 60,4) compared to SG3T. HID and SD values were higher (p < 0,05) in SG2T (HID: 145,63 ± 37; SD: 12,88 ± 7,1) than in SG3T (HID: 99,1 ± 33,2; SD: 5,75 ± 5,6). In the tactical/technical variables, SP (36,3 ± 6,4) and BL (28 ± 4,2) were higher in SG1T (p < 0,05) than in SG2T (SP: 26,9 ± 12,2; BL: 14 ± 1,51) and in SG3T (SP: 23,8 ± 3,4; BL: 12,1 ± 2,7). The %SP was smaller (p < 0,05) in SG1T (56,18 ± 7,82) than in SG3T (66,21 ± 7,94). Conclusions: In the physical domain, TD in SG1T was higher than in SG2T and SG3T, being HID and SD smaller in SG3T with respect to SG2T. At the technical-tactical level, SG1T situations showed more SP and less BL than SG2T and SG3T, being the %SP smaller in SG1T than in SG2T.

scholarly journals Analyse Success Model of Split Time and Cut-Off Point Values of Physical Demands to Keep Category in Semi-Professional Football Players

2020 ◽  
Vol 10 (15) ◽  
pp. 5299
Author(s):  
Jesus Vicente Gimenez ◽  
Luis Jimenez-Linares ◽  
Jorge Garcia-Unanue ◽  
Javier Sanchez-Sanchez ◽  
Leonor Gallardo ◽  
...  
Keyword(s):  
High Intensity ◽  
Ad Hoc ◽  
Controlled Study ◽  
Football Players ◽  
Professional Football ◽  
Physical Demands ◽  
Situational Variable ◽  
Success Model ◽  
Gps Devices ◽  
Split Time

The aim of this study was to analyse different success models and split time on cut-off point values on physical demands to keep category in semi-professional football players. An ad hoc observational controlled study was carried out with a total of ten (840 match data) outfield main players (25.2 ± 6.3 years, 1.79 ± 0.75 m, 74.9 ± 5.8 kg and 16.5 ± 6 years of football experience) and monitored using 15 Hz GPS devices. During 14 official matches from the Spanish division B in the 2016/2017 season, match data were coded considering the situational variable (score) and classified by match results (winning, losing or drawing). The results show significant differences between high-intensity attributes criteria that considered split time in velocity zones of 0–15 min (p = 0.043, ηp2 = 0.065, medium), 30–45 min (p = 0.010, ηp2 = 0.094, medium) and 60–75 min (p = 0.015, ηp2 = 0.086, medium), as well as sprint 60–75 min (p = 0.042, ηp2 = 0.066, medium) and 75–90 min (p = 0.002, ηp2 = 0.129, medium). Decision tree induction was applied to reduce the disparity range of data according to six 15-min intervals and to determine the cut-off point values for every parameter combination. It was possible to establish multivariate models for the main high-intensity actions criteria, allowing the establishment of all rules with their attributes and enabling the detection and visualisation of relationships and the pattern sets of variables for determining success.

scholarly journals Small-sided games do not replicate all external and internal loads of a football match-play during pre-season: A case study

2022 ◽  
pp. 174795412110699
Author(s):  
Guilherme de Sousa Pinheiro ◽  
Roberto Chiari Quintão ◽  
Vitor Bertoli Nascimento ◽  
João Gustavo Claudino ◽  
Adriano Lima Alves ◽  
...  
Keyword(s):  
Average Distance ◽  
Training Session ◽  
Football Players ◽  
Professional Football ◽  
Internal Load ◽  
Match Play ◽  
Average Value ◽  
Total Distance ◽  
Football Match

This study investigated the differences in external and internal load during pre-season training sessions carried out with different SSGs and a friendly match in top-class professional football players. The study was conducted over a full pre-season. Participants were 9 male top-class professional football players (25 ± 5 years; 74 ± 8 kg; 177 ± 8 cm). The following variables were measured: training session duration (min), average heart rate (bpm), total distance (m), distance covered per minute (m/min), the total number of accelerations > 2.5 m/s2, number of accelerations > 2.5 m/s2 per minute, average distance of accelerations (m), the average value of acceleration (m/s2). One-way ANOVA was performed to analyze the variance of all evaluated variables. No differences were found in the average accelerations (m/s2) (0.128) among all the training formats. Moderate differences were found in number of accelerations > 2.5 m/s2 per minute (η2 = 0.396, moderate effect) and average distance of accelerations (η2 = 0.545). Strong differences were found in HR (η2 = 0.788, large effect), total distance (η2 = 0.797, strong effect), distance per minute (η2 = 0.775 strong effect), total number of accelerations > 2.5 m/s2 (η2 = 0.699 strong effect). Significant correlations were found just for the number of accelerations > 2.5 m/s2 and the number of accelerations > 2.5 m/s2 per minute with the 4v4, 8v8 and the FM (r = 0.828–0.890, r2 = 69% – 79%; p < 0.01). External and internal loads differ across different SSGs and a FM during the pre-season training sessions.

scholarly journals Quantifying the Training and Match-Play External and Internal Load of Elite Gaelic Football Players

2021 ◽  
Vol 11 (4) ◽  
pp. 1756
Author(s):  
Shane Malone ◽  
Kieran Collins ◽  
Allistair McRobert ◽  
Dominic Doran
Keyword(s):  
Repeated Measures ◽  
High Speed ◽  
Perceived Exertion ◽  
Current Data ◽  
Rating Of Perceived Exertion ◽  
External Loading ◽  
Football Players ◽  
Internal Load ◽  
Match Play ◽  
Total Distance

The current investigation quantified the training and match-play load of elite Gaelic football players across a two-season period using global positioning system technology (GPS), rating of perceived exertion (RPE) and sessional rating of perceived exertion (sRPE). Total weekly workload variables were collected across GPS, RPE, and sRPE across thirty-six elite Gaelic footballers (mean ± SD, age: 26 ± 5 years; height: 177 ± 8 cm; mass: 81 ± 7 kg) from one elite squad during a two-season observational period. External training load variables included: Total distance (m), High speed running (m; ≥ 17.1 km·h−1), Sprint distance (m; 22 km·h−1), Accelerations (n), Average metabolic power (W·kg−1), High-power distance (m; ≥ 25 W·kg−1). Internal load variables included: sRPE and RPE. Repeated measures ANOVA were used to understand the differences in loading patterns across phases, position, and week types when significant main effects were observed a Tukey’s post hoc test was applied and standardized effect sizes were calculated to understand the practical meaning of these differences. When total weekly loading across phases was considered total load was significantly greater in club 1 and provincial 1 with these phases showing the highest loading for players when compared to all other phases (p ≤ 0.001; ES: 2.95–7.22; very large). Furthermore, in-season 1 was greater for total loading when compared to in-season 2 and both championship phases (p ≤ 0.05; ES: 0.47–0.54; small). Total distance in training was greater during preseason 1 when compared to all other phases of the season (p ≤ 0.001; ES: 2.95–7.22; very large). During the in-season period, training based total distance was higher during provincial 1 when compared to other phases with similar trends across all measures (p ≤ 0.005). Finally, a positional profile for load measures was observed, with weekly context (match or non-match) having an impact on the internal and external loading players experienced across phases. The current data provide useful information for practitioners on the training periodization currently present within the elite Gaelic football training process. Specifically, the data provide positional profiles of loading across weekly and segmented phased of an elite Gaelic football season. These data can increase understanding as to the periods of increased and decreased loading across different phases of an elite Gaelic football season, while providing a framework for future analysis concerning Gaelic football periodization.

scholarly journals Position Specific Running Performances in Professional Football (Soccer): Influence of Different Tactical Formations

Sports ◽  
2020 ◽  
Vol 8 (12) ◽  
pp. 161
Author(s):  
Toni Modric ◽  
Sime Versic ◽  
Damir Sekulic
Keyword(s):  
Body Mass ◽  
Analysis Of Variance ◽  
Global Positioning System ◽  
High Intensity ◽  
Training Programs ◽  
Body Height ◽  
Football Players ◽  
Positioning System ◽  
Professional Football ◽  
Global Positioning

Running performances (RPs) are known to be important parameters of success in football (soccer), but there is a lack of studies where RPs are contextualized regarding applied tactical solutions. This study aims to quantify and analyze the differences in position-specific RPs in professional football, when games are played with three defensive players (3DP) and four defensive players (4DP). The participants here include professional football players (M ± SD, age 23.57 ± 2.84 years, body height 181.9 ± 5.17 cm, body mass 78.36 ± 4.18 kg) playing at the highest competitive level in Croatia. RPs were measured by global positioning system and classified into four groups based on playing positions: central defenders (CD; n = 47), wide defenders (WD; n = 24), midfielders (MF; n = 48), or forwards (FW; n = 19). Analysis of variance and discriminant canonical analysis are used to identify differences between 3DP and 4DP tactical solutions in terms of the RPs for each playing position. The number of accelerations and decelerations most significantly contributed to the differentiation of 3DP and 4DP among MFs (Wilks λ = 0.31, p < 0.001), with higher occurrences with 3DP. For CDs, total distance, and high-intensity running were higher in 3DP (Wilks λ = 0.66, p < 0.001). No multivariate differences were found for FW and WD players in terms of the RPs between 3DP and 4DP tactical formations. The characteristics and differences shown in this study may provide useful information for coaching staff regarding changing in-season tactical formations. Additionally, the results are useful for optimizing training programs for football players with different playing positions. When changing from 4DP to 3DP tactical formations, WDs training programs should include more of high-intensity running, while MFs training programs should be more based on short intensity activities (accelerations and decelerations).

scholarly journals The Effect of the COVID-19 Lockdown on the Position-Specific Match Running Performance of Professional Football Players; Preliminary Observational Study

2021 ◽  
Vol 18 (22) ◽  
pp. 12221
Author(s):  
Damir Sekulic ◽  
Sime Versic ◽  
Andrew Decelis ◽  
Jose Castro-Piñero ◽  
Dejan Javorac ◽  
...  
Keyword(s):  
Physical Performance ◽  
High Intensity ◽  
Effect Sizes ◽  
Football Players ◽  
Professional Football ◽  
Running Performance ◽  
Low Intensity ◽  
Before And After ◽  
National Competition ◽  
Physical Performances

The COVID-19 pandemic interrupted professional football in the 2019/2020 season, and football experts anticipate that the consequences of lockdown measures will negatively affect the physical performance of players once competition restarts. This study aimed to evaluate position-specific match running performance (MRP) to determine the effect of COVID-19 lockdowns on the physical performance of professional football players. Players’ MRPs (n = 124) were observed in matches before and after the COVID-19 lockdown in the 2019/2020 season of the highest level of national competition in Croatia and were classified according to player position: central defenders (CD; n = 42), fullbacks (FB; n = 20), midfielders (MF; n = 46), and forwards (FW; n = 16). The MRPs were measured using Global Positioning System, and included the total distance covered, low-intensity running (≤14.3 km/h), running (14.4–19.7 km/h), high-intensity running (≥19.8 km/h), total accelerations (>0.5 m/s2), high-intensity accelerations (>3 m/s2), total decelerations (less than –0.5 m/s2), and high-intensity decelerations (less than –3 m/s2). The results indicated that, in matches after the COVID-19 lockdown, (i) CDs and FBs featured lower running and high-intensity running (t-value: from 2.05 to 3.51; all p < 0.05; moderate to large effect sizes), (ii) MFs covered a greater distance in low-intensity running and achieved a lower number of total accelerations, and total and high-intensity decelerations (t-value: from –3.54 to 2.46; all p < 0.05, moderate to large effect sizes), and (iii) FWs featured lower high-intensity running (t-value = 2.66, p = 0.02, large effect size). These findings demonstrate that the physical performances of football players from the Croatian first division significantly decreased in matches after the COVID-19 lockdown. A combination of inadequate adaptation to football-specific match demands and a crowded schedule after the competition was restarted most likely resulted in such an effect.

scholarly journals Evaluation of the Super League Team’s Competition Analysis before and after the COVID-19 Outbreak Is Given

2021 ◽  
Vol 7 (1) ◽  
pp. 45
Author(s):  
M. Onur Sever ◽  
Ömer Zambak
Keyword(s):  
High Intensity ◽  
High Speed ◽  
Football Players ◽  
Competition Analysis ◽  
Average Speed ◽  
Total Distance ◽  
Significant Difference ◽  
Before And After ◽  
Paired T Test ◽  
Super League

The paper is aimed to determine whether there is a loss of performance by comparing the competition values of the Super League team before and after the COVID-19 epidemic. In order to reduce the performance losses of the athletes due to lack of training, 60-75 minutes of self-weight training was applied during the quarantine period. Paired t test was used for statistical analysis. A statistically significant difference was found in the Total Distance, High Intensity Distance, Sprint Distance, High Speed Distance, Number of High Intensity Runs, Number of Sprints, Number of High Speed Runs, Average Speed, Total Distance in Possession, Total Distance Out of Possession, Total Distance Ball Out of Play, High Intensity Distance in Possession, High Intensity Distance Out of Possession, High Intensity Distance Ball Out of Play, Sprint in Possession, Sprint Out of Possession, Sprint Ball Out of Play, High Speed Distance in Possession, High Speed Distance Out of Possession, High Speed Distance Ball Out of Play values of the athletes compared to p < 0.05. As a result, it has been observed that the training of super league football players with their own body weight during the quarantine period positively affects their performance during the season.

Post-match recovery of eccentric knee flexor strength in male professional football players

2021 ◽  
Vol 47 ◽  
pp. 140-146
Author(s):  
César Augusto Bueno ◽  
João Breno de Araujo Ribeiro-Alvares ◽  
Gabriel dos Santos Oliveira ◽  
Rafael Grazioli ◽  
Filipe Veeck ◽  
...  
Keyword(s):  
Football Players ◽  
Professional Football ◽  
Knee Flexor ◽  
Flexor Strength

Lunate and Perilunate Dislocations in Professional Football Players

1994 ◽  
Vol 22 (6) ◽  
pp. 841-845 ◽  
Author(s):  
David J. Raab ◽  
David A. Fischer ◽  
Donald C. Quick
Keyword(s):  
Football Players ◽  
Professional Football
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