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Vigh-Larsen JF, Junge N, Cialdella-Kam L, Tomás R, Young L, Krustrup P, Mohr M, Nybo L. Testing in Intermittent Sports-Importance for Training and Performance Optimization in Adult Athletes. Med Sci Sports Exerc 2024; 56:1505-1537. [PMID: 39004796 DOI: 10.1249/mss.0000000000003442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/16/2024]
Abstract
ABSTRACT Performance in intermittent sports relies on the interplay between multiple physiological systems determining the capacity to perform short explosive efforts as well as repeated intense actions with limited recovery over the course of an entire game. Testing should reflect these demands to allow for sport- and position-specific capacity analyses that eventually may translate into optimized training and improved performance. This may include individual load management and optimized training prescription, intensity targeting for specific positions or individual athletes, as well as benchmarking for monitoring of training progression and enhanced engagement of athletes. This review provides an overview of available tests in different exercise domains identified as relevant (from assessment of single explosive actions to intermittent endurance capacity), forming the basis for recommendations on how to compose a comprehensive yet feasible test battery that may be integrated into the seasonal competition and training plan. The test procedures should cover the performance spectrum of relevance for the individual athlete-also in team sports to account for positional differences. We emphasize the benefits of sport-specific tests, highlight parameters of importance for test standardization, and discuss how the applied test battery may be supplemented with secondary tests directed toward specific energy systems to allow for more in-depth analyses when required (e.g., in terms of an underperforming athlete). The synergy between testing and tracking of match performance (utilizing time-motion or global positioning systems) is highlighted, and although tracking cannot substitute for testing, combining the tools may provide a comprehensive overview of the physiological demands and performance during competition contextualized to the athletes' maximal exercise capacity.
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Affiliation(s)
| | - Nicklas Junge
- Department of Nutrition, Exercise and Sport Sciences, University of Copenhagen, Copenhagen, DENMARK
| | - Lynn Cialdella-Kam
- Warfighter Performance Department, Naval Health Research Center, San Diego, CA
| | - Rita Tomás
- Portugal Football School, Federação Portuguesa de Futebol Avenida das Seleções, Oeiras, PORTUGAL
| | - Laura Young
- American College of Sports Medicine, Indianapolis, IN
| | | | | | - Lars Nybo
- Department of Nutrition, Exercise and Sport Sciences, University of Copenhagen, Copenhagen, DENMARK
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Henríquez M, Reina R, Castillo D, Iturricastillo A, Yanci J. Contextual factors and match-physical performance of international-level footballers with cerebral palsy. SCI MED FOOTBALL 2024; 8:232-241. [PMID: 37093020 DOI: 10.1080/24733938.2023.2206384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/16/2023] [Indexed: 04/25/2023]
Abstract
This study aimed to explore the match-physical response of international-level footballers with cerebral palsy (CP) according to contextual factors such as team ranking, the quality level of opposition, and match outcome. Eighty-two male outfield footballers with CP from top-ranked teams (n = 26) and bottom-ranked teams (n = 56) took part in this study. The match-player response was recorded using global positioning devices considering the total distance, distance covered at different velocities and number of short-term actions. Players from top-ranked teams covered more distance at low intensities compared to players from bottom-ranked teams (p < 0.05; 0.45 < ES < 0.49). Higher sprint distance, moderate and high accelerations/decelerations were found in players from top-ranked teams playing against teams of similar levels (p < 0.05; 0.73g< 0.86). When players from bottom-ranked teams played against teams of equivalent rank, more physical requirements were presented in total distance, running from medium to sprint intensities, and the number of short-term actions (p < 0.0.05; -0.55S < -0.89). Players from the top-ranking teams presented greater sprint demands in losing matches (p<0.05; dg=-1.01). Considering the bottom-ranking opposition, players presented more running demands in matches with losing results in moderate running, sprinting, and moderate-to-high deceleration (p < 0.05; -0.61 < dg < -0.64). The match-physical response of players with CP varies according to the contextual factors studied. The results provide advice for coaches and classifiers to understand more comprehensively the competing demands in CP football. This knowledge could help practitioners to prepare competition matches and planning training load or post-match recovery strategies, but also for the observation assessments of the classification process in this team para-sport.
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Affiliation(s)
- Matías Henríquez
- Escuela de Kinesiología, Facultad de Odontología y Ciencias de la Rehabilitación, Universidad San Sebastián, Providencia, Chile
| | - Raul Reina
- Sports Research Centre, Miguel Hernández University, Elche, Spain
| | - Daniel Castillo
- Valoración del Rendimiento Deportivo, Actividad Física y Salud, y Lesiones Deportivas (REDAFLED), Faculty of Education, University of Valladolid, Soria, Spain
| | - Aitor Iturricastillo
- Sports and Physical Exercise Research Group (GIKAFIT), Department of Physical Education and Sport, Faculty of Education and Sport, University of the Basque Country, Vitoria-Gasteiz, Spain
| | - Javier Yanci
- Sports and Physical Exercise Research Group (GIKAFIT), Department of Physical Education and Sport, Faculty of Education and Sport, University of the Basque Country, Vitoria-Gasteiz, Spain
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Teixeira JE, Branquinho L, Leal M, Morgans R, Sortwell A, Barbosa TM, Monteiro AM, Afonso P, Machado G, Encarnação S, Ferraz R, Forte P. Match-to-Match Variation on High-Intensity Demands in a Portuguese Professional Football Team. J Funct Morphol Kinesiol 2024; 9:120. [PMID: 39051281 PMCID: PMC11270202 DOI: 10.3390/jfmk9030120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Revised: 06/30/2024] [Accepted: 07/01/2024] [Indexed: 07/27/2024] Open
Abstract
The aim of this study was to analyze the match-to-match variation in high-intensity demands from one Portuguese professional football team according to playing positions. Twenty-three male outfield professional football players were observed during eighteen matches of the Portuguese Second League. Time-motion data were collected using Global Positioning System (GPS) technology. Match running performance was analyzed based on the following three playing positions: defenders (DF), midfielders (MF), and forwards (FW). Repeated measures ANOVA was utilized to compare match running performance within each position role, and seasonal running variation. Practical differences were assessed using the smallest worthwhile change (SWC), coefficient of variation (CV), and twice the coefficient of variation (2CV). Significant differences were found among playing positions in total distance covered (F = 15.45, p < 0.001, η2 = 0.33), average speed (F = 12.79, p < 0.001, η2 = 0.29), high-speed running (F = 16.93, p < 0.001, η2 = 0.36), sprinting (F = 13.49, p < 0.001, η2 = 0.31), accelerations (F = 4.69, p = 0.001, η2 = 0.132), and decelerations (F = 12.21, p < 0.001, η2 = 0.284). The match-to-match running performance encompassed TD (6.59%), AvS (8.67%), HSRr (37.83%), SPR (34.82%), ACC (26.92%), and DEC (27.85%). CV values for total distance covered ranged from 4.87-6.82%, with forwards and midfielders exhibiting the greatest and smallest variation, respectively. Midfielders demonstrated the highest match-to-match variation for all other analyzed variables (8.12-69.17%). All playing positions showed significant variation in high-demanding variables (26.94-37.83%). This study presents the initial analysis of match-to-match variation in high-intensity demands within a Portuguese professional football team. Thus, the position's specificity and context can provide a helpful strategy for evaluating match-to-match running performance, and for recommending individualized training exercises based on the peak and high-intensity demands for each player's role within the game.
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Affiliation(s)
- José E. Teixeira
- Department of Sport Sciences, Polytechnic of Guarda, 6300-559 Guarda, Portugal
- Department of Sport Sciences, Instituto Politécnico de Bragança, 5300-253 Bragança, Portugal; (T.M.B.); (A.M.M.); (S.E.); (P.F.)
- SPRINT—Sport Physical Activity and Health Research & Inovation Center, 2001-904 Guarda, Portugal
- Research Center for Active Living and Wellbeing (Livewell), Instituto Politécnico de Bragança, 5300-252 Bragança, Portugal
- Research Centre in Sports Sciences, Health Sciences and Human Development, 5001-801 Vila Real, Portugal; (A.S.); (R.F.)
- CI-ISCE, Higher Institute of Educational Sciences of the Douro (ISCE Douro), 4560-708 Penafiel, Portugal; (L.B.); (M.L.)
| | - Luís Branquinho
- CI-ISCE, Higher Institute of Educational Sciences of the Douro (ISCE Douro), 4560-708 Penafiel, Portugal; (L.B.); (M.L.)
- Life Quality Research Center (LQRC-CIEQV), Complexo Andaluz, Apartado 279, 2001-904 Santarém, Portugal
- Biosciences Scholl of Elvas, Polytechnic Institute of Portalegre, 7300-110 Portalegre, Portugal
| | - Miguel Leal
- CI-ISCE, Higher Institute of Educational Sciences of the Douro (ISCE Douro), 4560-708 Penafiel, Portugal; (L.B.); (M.L.)
| | - Ryland Morgans
- School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff CF23 6XD, UK;
| | - Andrew Sortwell
- Research Centre in Sports Sciences, Health Sciences and Human Development, 5001-801 Vila Real, Portugal; (A.S.); (R.F.)
- School of Health Sciences and Physiotherapy, University of Notre Dame Australia, Fremantle, WA 6160, Australia
| | - Tiago M. Barbosa
- Department of Sport Sciences, Instituto Politécnico de Bragança, 5300-253 Bragança, Portugal; (T.M.B.); (A.M.M.); (S.E.); (P.F.)
- Research Center for Active Living and Wellbeing (Livewell), Instituto Politécnico de Bragança, 5300-252 Bragança, Portugal
| | - António M. Monteiro
- Department of Sport Sciences, Instituto Politécnico de Bragança, 5300-253 Bragança, Portugal; (T.M.B.); (A.M.M.); (S.E.); (P.F.)
- Research Center for Active Living and Wellbeing (Livewell), Instituto Politécnico de Bragança, 5300-252 Bragança, Portugal
| | - Pedro Afonso
- Department of Sports, Exercise and Health Sciences, University of Trás-os-Montes e Alto Douro, 5001-801 Vila Real, Portugal;
| | - Guilherme Machado
- Department of Athletes’ Integration and Development, Paulista Football Federation (FPF), São Paulo 05614-060, Brazil;
| | - Samuel Encarnação
- Department of Sport Sciences, Instituto Politécnico de Bragança, 5300-253 Bragança, Portugal; (T.M.B.); (A.M.M.); (S.E.); (P.F.)
- Research Center for Active Living and Wellbeing (Livewell), Instituto Politécnico de Bragança, 5300-252 Bragança, Portugal
- Department of Pysical Activity and Sport Sciences, Universidad Autónoma de Madrid, Ciudad Universitaria de Cantoblanco, 28049 Madrid, Spain
| | - Ricardo Ferraz
- Research Centre in Sports Sciences, Health Sciences and Human Development, 5001-801 Vila Real, Portugal; (A.S.); (R.F.)
- Department of Sports Sciences, University of Beria Interior, 6201-001 Covilhã, Portugal
| | - Pedro Forte
- Department of Sport Sciences, Instituto Politécnico de Bragança, 5300-253 Bragança, Portugal; (T.M.B.); (A.M.M.); (S.E.); (P.F.)
- Research Center for Active Living and Wellbeing (Livewell), Instituto Politécnico de Bragança, 5300-252 Bragança, Portugal
- Research Centre in Sports Sciences, Health Sciences and Human Development, 5001-801 Vila Real, Portugal; (A.S.); (R.F.)
- CI-ISCE, Higher Institute of Educational Sciences of the Douro (ISCE Douro), 4560-708 Penafiel, Portugal; (L.B.); (M.L.)
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Salazar H, Ujakovic F, Plesa J, Lorenzo A, Alonso-Pérez-Chao E. Do Elite Basketball Players Maintain Peak External Demands throughout the Entire Game? SENSORS (BASEL, SWITZERLAND) 2024; 24:4318. [PMID: 39001097 PMCID: PMC11244264 DOI: 10.3390/s24134318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Revised: 05/29/2024] [Accepted: 06/24/2024] [Indexed: 07/16/2024]
Abstract
Consideration of workload intensity and peak demands across different periods of basketball games contributes to understanding the external physical requirements of elite basketball players. Therefore, the aim of this study was to investigate the average intensity and peak demands encountered by players throughout game quarters. PlayerLoad per minute and PlayerLoad at three different time samples (30 s, 1 min, and 3 min) were used as workload metrics. A total of 14 professional elite male basketball players were monitored during 30 official games to investigate this. A linear mixed model and Cohen's d were employed to identify significant differences and quantify the effect sizes among game quarters. The results showed a significant, moderate effect in PlayerLoad per minute between Q1 vs. Q4, and a small effect between Q2 and Q3 vs. Q4. Furthermore, a small to moderate decline was observed in external peak values for PlayerLoad across game quarters. Specifically,, a significant decrease was found for the 3 min time window between Q1 and other quarters. The findings from the present study suggest that professional basketball players tend to experience fatigue or reduced physical output as the game progresses.
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Affiliation(s)
- Hugo Salazar
- Faculty of Education and Sport, University of Basque Country (UPV/EHU), 01007 Vitoria-Gasteiz, Spain;
| | - Filip Ujakovic
- Basketball Club Cedevita Olimpija, 1000 Ljubljana, Slovenia; (F.U.)
| | - Jernej Plesa
- Basketball Club Cedevita Olimpija, 1000 Ljubljana, Slovenia; (F.U.)
| | - Alberto Lorenzo
- Faculty of Physical Activity and Sport Sciences—INEF, Polytechnic University of Madrid, 28040 Madrid, Spain
| | - Enrique Alonso-Pérez-Chao
- Department of Physical Activity and Sports Science, University Alfonso X el Sabio, 28691 Villanueva de la Cañada, Spain;
- Faculty of Sports Science, European University of Madrid, 28670 Villaviciosa de Odón, Spain
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Konefał M, Szmigiel B, Bochenek B, Morgans R, Żmijewski P. Match running performance preceding scoring and conceding a goal in men's professional soccer. Sci Rep 2024; 14:12885. [PMID: 38839913 PMCID: PMC11153542 DOI: 10.1038/s41598-024-63785-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 06/03/2024] [Indexed: 06/07/2024] Open
Abstract
This study aimed to investigate the potential differences in the match running performance of professional soccer players 5 min. before scoring and conceding a goal in the Polish Ekstraklasa. The sample consisted of 278 matches with 570 goals scored during official matches of the 2022/23 Polish Ekstraklasa season. All data was collected utilising the computerised multiple-camera optical tracking system TRACAB. Total distance covered (TD), standing distance (StD; < 0.72 km h-1), walking distance (WD; 0.73-7.2 km h-1), jogging distance (JG; 7.21-14.4 km h-1), running distance (RD; 14.41-19.8 km h-1), high-speed running distance (HSR; 19.81-25.2 km h-1) and sprinting distance (SprD; > 25.2 km h-1) were analysed in 5-min intervals prior to a goal scored for both teams. The employed linear mixed models showed that all examined match-running performance metrics were higher in teams that scored a goal compared to teams that conceded a goal. Within 5 min before scoring a goal in Polish Ekstraklasa matches, the scoring team produced significantly greater TD (∆ 95%CI 256.8-300.4 m; p = 0.001), WD (∆ 95%CI 52.3-95.8 m; p = 0.001), JG (∆ 95%CI 100.5-144.1 m; p = 0.001) and RD (∆ 95%CI 16.2-59.8 m; p = 0.001) compared to the conceding team, although no differences were found for HSR and SprD. These results demonstrate the enhanced identification potential of key physical performance factors influencing goal scoring in the Polish Ekstraklasa, thereby optimising the training process and improving overall performance. To enhance the effectiveness of soccer training, coaching and performance staff should consider this study's findings, that indicate an increase in the volume of medium- and low-intensity running efforts preceding a goal.
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Affiliation(s)
- Marek Konefał
- Department of Human Motor Skills, Wrocław University of Health and Sport Sciences, Paderewskiego 35, 51-612, Wrocław, Poland.
| | - Błażej Szmigiel
- Department of Human Motor Skills, Wrocław University of Health and Sport Sciences, Paderewskiego 35, 51-612, Wrocław, Poland
| | - Bogdan Bochenek
- Wrocław University of Science and Technology, Wybrzeże Stanisława Wyspiańskiego 27, 50-370, Wrocław, Poland
| | - Ryland Morgans
- School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, UK
| | - Piotr Żmijewski
- Department of Biomedical Sciences, Józef Piłsudski University of Physical Education in Warsaw, Marymoncka 34, 00-968, Warsaw, Poland
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Teoldo I, Dambroz F, Brito J. Performance of soccer players under acute physical fatigue: An approach based on cognitive, tactical and physical aspects. Heliyon 2024; 10:e30516. [PMID: 38726114 PMCID: PMC11079249 DOI: 10.1016/j.heliyon.2024.e30516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 04/21/2024] [Accepted: 04/29/2024] [Indexed: 05/12/2024] Open
Abstract
This study aimed to verify whether peripheral perception, tactical behaviour, and physical performance are influenced by acute physical fatigue in soccer players. The study included 24 trained soccer players (18.6 ± 1.5 years) from two Brazilian clubs. The TSAFT90 test was used to induce acute physical fatigue. The results showed that physical fatigue did not affect peripheral perception (p = 0.360). Regarding tactical behaviour, improved efficiency was observed for the principles of offensive coverage (p = 0.029), width and length with the ball (p = 0.044), and concentration (p = 0.008). On the other hand, a reduction was observed in the number of tactical actions of offensive coverage (p = 0.020) and recovery balance (p = 0.042). Also, improved accuracy in the principles of defensive balance (p = 0.009), recovery balance (p = 0.021) and defensive unity (p = 0.003) occurred under physical fatigue. A reduction in the physical performance outcomes total distance covered (p < 0.001), average speed (p < 0.001), sprints (p = 0.029), number of accelerations (p = 0.008) and decelerations (p = 0.008) were also detected. The internal (p < 0.01) and external (p < 0.01) workload was higher under physical fatigue. Overall, acute physical fatigue did not influence peripheral perception. However, physical performance was reduced under fatigue, the perceived effort increased, and tactical behaviours were affected by decreasing tactical actions performed near the ball, increasing errors in defensive movements in the lateral corridors and the last defensive line, and improving offensive tactical actions performance.
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Affiliation(s)
- Israel Teoldo
- Centre of Research and Studies in Soccer (NUPEF), Universidade Federal de Viçosa, Department of Physical Education, Viçosa, Brazil
| | - Felipe Dambroz
- Centre of Research and Studies in Soccer (NUPEF), Universidade Federal de Viçosa, Department of Physical Education, Viçosa, Brazil
| | - João Brito
- Portuguese Football Federation, Portugal Football School, Oeiras, Portugal
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Rabbani A, Ermidis G, Clemente FM, Twist C. Variability of External Load Measures During Soccer Match Play: Influence of Player Fitness or Pacing? Int J Sports Physiol Perform 2024; 19:340-346. [PMID: 38198797 DOI: 10.1123/ijspp.2023-0243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 11/07/2023] [Accepted: 11/30/2023] [Indexed: 01/12/2024]
Abstract
PURPOSE The aims of this study were to examine the variability of selected external load metrics within 15-minute intervals during soccer match play and examine their relationship with players' high-intensity intermittent fitness. METHODS A total of 18 male soccer players were monitored for their external load metrics during 26 matches, which included total distance, high-metabolic-load distance, and mechanical work (defined as the sum of accelerations and decelerations >3 m2). Additionally, players completed the 30-15 Intermittent Fitness Test. RESULTS Total distance had lower coefficients of variation than high-metabolic-load distance and mechanical work (effect size [ES]: 5.2 to 6.4; very large). Within-player Δ-15min showed moderate to large decreases (ES: -0.7 to -1.6) and increases (ES: 0.9 to 1.8) in absolute and coefficient-of-variation values, respectively. Large relationships (r = .55 to .61) were observed between the Intermittent Fitness Test and 15-minmean and 15-minbest in all selected external load metrics. However, small to moderate (0.27 to 0.41) associations were observed between the Intermittent Fitness Test and Δ-15min in selected external load metrics. CONCLUSIONS These findings suggest that players with relatively lower intermittent running capacity might show lower variability during matches, as evidenced by smaller reductions in high-intensity actions during the final 15 minutes. We attribute these observations to players' possessing better pacing strategies.
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Affiliation(s)
- Alireza Rabbani
- Sport Science Department, Ittihad Kalba F.C, Fujairah, United Arab Emirates
- Sport Science Department, OFI Crete F.C, Crete, Greece
| | | | - Filipe Manuel Clemente
- Escola Superior Desporto e Lazer, Instituto Politécnico de Viana do Castelo, Viana do Castelo, Portugal
- Sport Physical Activity and Health Research & Innovation Center (SRINT), Viana do Castelo, Portugal
- Gdansk University of Physical Education and Sport, Gdańsk, Poland
| | - Craig Twist
- Research Institute of Sport and Exercise Science, Liverpool John Moores University, Liverpool, United Kingdom
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Gonçalves LG, Nobari H, Rites AA, Nakamura FY, Garcia GR, Aquino R. Influence of contextual factors on match running performance of starters and non-starters in elite youth male soccer players. Sci Prog 2024; 107:368504241239187. [PMID: 38567429 PMCID: PMC10993682 DOI: 10.1177/00368504241239187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
This study investigated the effects of match location, quality of opposition (classified into: strong [1st to 4th position]; intermediate [5th to 15th position]; weak [16th to 20th position]), and match outcome on the match running performance of starters and non-starters from a top elite Brazilian soccer team. Absolute measures were calculated using total distance, high-speed (19.8-25.2 km·h-1), sprinting (≥ 25.2 km·h-1), total distance high-acceleration (> 2m·s2), and deceleration (< -2m·s2) were recorded by GPS units from a sample of young soccer players (N = 25) in a total of 17 matches. Relative measures were calculated by dividing absolute measures by the total duration of the matches. Non-starters covered greater total distance (p = 0.02), sprinting (p = 0.02), high-acceleration and deceleration (p = 0.04), sprinting distance relative per minute played (p = 0.005), and high-acceleration and deceleration relative per minute played (p < 0.001) when the team plays at home, strong opponents, and wins the matches. Starters covered greater total distance in high-speed running (p = 0.04), high-acceleration and deceleration (p = 0.03), and high-speed running relative per minute played (p = 0.04) when the team plays strong opponents and wins the matches. These findings highlight the impact of contextual factors during matches on the locomotor performance of young soccer players.
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Affiliation(s)
- Luiz Guilherme Gonçalves
- LabSport, Post-graduate Program in Physical Education, Centre of Physical Education and Sport (CEFD), Federal University of Espírito Santo, Vitória/ES, Brazil
| | - Hadi Nobari
- Department of Exercise Physiology, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran
- Faculty of Sport Sciences, University of Extremadura, Cáceres, Spain
| | - Alex Ambrosio Rites
- Department of Physiology, Fluminense Football Club, Rio de Janeiro/RJ, Brazil
- Department of Physical Education, Federal University of Rio de Janeiro, Rio de Janeiro/RJ, Brazil
| | - Fábio Yuzo Nakamura
- Research Center in Sports Sciences, Health Sciences and Human Development (CIDESD), University of Maia, Maia, Portugal
| | - Gabriel Rodrigues Garcia
- LabSport, Post-graduate Program in Physical Education, Centre of Physical Education and Sport (CEFD), Federal University of Espírito Santo, Vitória/ES, Brazil
| | - Rodrigo Aquino
- LabSport, Post-graduate Program in Physical Education, Centre of Physical Education and Sport (CEFD), Federal University of Espírito Santo, Vitória/ES, Brazil
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9
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Rey E, Kalén A, Lorenzo-Martínez M, López-Del Campo R, Nevado-Garrosa F, Lago-Peñas C. Elite Soccer Players Do Not Cover Less Distance in the Second Half of the Matches When Game Interruptions Are Considered. J Strength Cond Res 2024; 38:709-713. [PMID: 33337688 DOI: 10.1519/jsc.0000000000003935] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
ABSTRACT Rey, E, Kalén, A, Lorenzo-Martínez, M, López-Del Campo, R, Nevado-Garrosa, F, and Lago-Peñas, C. Elite soccer players do not cover less distance in the second half of the matches when game interruptions are considered. J Strength Cond Res 38(4): 709-713, 2024-This study aimed to analyze quantitative differences in the physical demands of male elite soccer players between the first and second halves during official matches, accounting for effective playing time (the duration of play after subtracting the game interruptions) and playing positions. A total of 4,249 individual match observations of 412 outfield players competing in the Spanish first division league (LaLiga) were undertaken during the 2018-2019 season, using a computerized tracking system (TRACAB, Chyronhego, New York, NY). The players were classified into 5 positional roles: central defenders (CD), external defenders (ED), central midfielders (CM), external midfielders (EM), and forwards (F). The main results showed that in contrast to those observed when total playing time was considered, independent of playing position, there were no significant differences on high-speed running (HSR) (5.5 ± 2.4 vs. 5.5 ± 2.4 m·min -1 ) and sprint (5.3 ± 3.3 vs. 5.4 ± 3.3 m·min -1 ) distances between the first and second halves in professional soccer players when the effective playing time was considered. However, differences in match running performance at HSR and sprint distances between the first and second halves were dependent on players' playing position. Whereas ED and EM maintained HSR and sprint efforts during the second half, CD and CM significantly increased ( p < 0.001) the distance covered at sprint during the second period of the match. Contrarily, F were unable to maintain their HSR (6.2 ± 2.3 vs. 5.9 ± 3.3 m·min -1 ) and sprint (7.0 ± 3.5 vs. 6.5 ± 3.4 m·min -1 ) match running performances during the second half. Such findings demonstrate that total playing time could overestimate fatigue-induced performance declines. Thus, effective playing time and playing position should be taken into account when interpreting the match running performance of professional soccer players.
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Affiliation(s)
- Ezequiel Rey
- Faculty of Education and Sport Sciences, University of Vigo, Spain ; and
| | - Anton Kalén
- Faculty of Education and Sport Sciences, University of Vigo, Spain ; and
| | | | | | | | - Carlos Lago-Peñas
- Faculty of Education and Sport Sciences, University of Vigo, Spain ; and
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10
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Skoki A, Gašparović B, Ivić S, Lerga J, Štajduhar I. Building Individual Player Performance Profiles According to Pre-Game Expectations and Goal Difference in Soccer. SENSORS (BASEL, SWITZERLAND) 2024; 24:1700. [PMID: 38475238 DOI: 10.3390/s24051700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 02/24/2024] [Accepted: 02/29/2024] [Indexed: 03/14/2024]
Abstract
Soccer player performance is influenced by multiple unpredictable factors. During a game, score changes and pre-game expectations affect the effort exerted by players. This study used GPS wearable sensors to track players' energy expenditure in 5-min intervals, alongside recording the goal timings and the win and lose probabilities from betting sites. A mathematical model was developed that considers pre-game expectations (e.g., favorite, non-favorite), endurance, and goal difference (GD) dynamics on player effort. Particle Swarm and Nelder-Mead optimization methods were used to construct these models, both consistently converging to similar cost function values. The model outperformed baselines relying solely on mean and median power per GD. This improvement is underscored by the mean absolute error (MAE) of 396.87±61.42 and root mean squared error (RMSE) of 520.69±88.66 achieved by our model, as opposed to the B1 MAE of 429.04±84.87 and RMSE of 581.34±185.84, and B2 MAE of 421.57±95.96 and RMSE of 613.47±300.11 observed across all players in the dataset. This research offers an enhancement to the current approaches for assessing players' responses to contextual factors, particularly GD. By utilizing wearable data and contextual factors, the proposed methods have the potential to improve decision-making and deepen the understanding of individual player characteristics.
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Affiliation(s)
- Arian Skoki
- Department of Computer Engineering, Faculty of Engineering, University of Rijeka, Vukovarska 58, 51000 Rijeka, Croatia
| | - Boris Gašparović
- Department of Computer Engineering, Faculty of Engineering, University of Rijeka, Vukovarska 58, 51000 Rijeka, Croatia
| | - Stefan Ivić
- Department of Fluid Mechanics, Faculty of Engineering, University of Rijeka, Vukovarska 58, 51000 Rijeka, Croatia
| | - Jonatan Lerga
- Department of Computer Engineering, Faculty of Engineering, University of Rijeka, Vukovarska 58, 51000 Rijeka, Croatia
- Center for Artificial Intelligence and Cybersecurity, University of Rijeka, R. Matejcic 2, 51000 Rijeka, Croatia
| | - Ivan Štajduhar
- Department of Computer Engineering, Faculty of Engineering, University of Rijeka, Vukovarska 58, 51000 Rijeka, Croatia
- Center for Artificial Intelligence and Cybersecurity, University of Rijeka, R. Matejcic 2, 51000 Rijeka, Croatia
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11
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Kavanagh R, McDaid K, Rhodes D, McDonnell J, Oliveira R, Morgans R. An Analysis of Positional Generic and Individualized Speed Thresholds Within the Most Demanding Phases of Match Play in the English Premier League. Int J Sports Physiol Perform 2024; 19:116-126. [PMID: 38134895 DOI: 10.1123/ijspp.2023-0063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 09/14/2023] [Accepted: 10/12/2023] [Indexed: 12/24/2023]
Abstract
OBJECTIVES To analyze the positional distances covered above generic and individualized speed thresholds within the most demanding phases of match play. Categorized by position, 17 English Premier League players' match data were analyzed over 2 consecutive seasons (2019-20 and 2020-21). The most demanding phases of play were determined using a rolling average across 4 periods of 1, 3, 5, and 10 minutes. Distance covered in the time above the standard speed of 5.5 m/s was analyzed, with individualized metrics based on the maximal aerobic speed (MAS) test data. RESULTS Central defenders displayed lower values for high-intensity periods when compared with fullbacks, midfielders, and wide midfielders for both generic and individualized metrics. MAS during 1-minute periods was significantly higher for forwards when compared with central defenders (82.9 [18.9] vs 67.5 [14.8] for maximum high-speed running [HSR] and 96.0 [15.9] vs 75.7 [13.8] HSR for maximum MAS activity). The maximum effect size differences between the central midfielders, wide midfielders, and fullbacks for HSR and MAS measures under the maximum HSR criterion was 0.28 and 0.18 for the 1-minute period, 0.36 and 0.19 for the 3-minute period, 0.46 and 0.31 for the 5-minute period, and 0.49 and 0.315 for the 10-minute period. CONCLUSIONS Individualized speed metrics may provide a more precise and comparable measure than generic values. Data appear to be consistent across playing positions except for central defenders. This information may allow practitioners to directly compare individualized physical outputs of non-central defenders during the most demanding phases of play regardless of the players' positional group. This may provide coaches with important information regarding session design, training load, and fatigue monitoring.
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Affiliation(s)
- Ronan Kavanagh
- Nottingham Forest FC, Nottingham, United Kingdom
- Football Performance Hub, Institute of Coaching and Performance, University of Central Lancashire, Preston, United Kingdom
| | - Kevin McDaid
- Applied Data Analytics Research Group, Dundalk Institute of Technology, Louth, Ireland
| | - David Rhodes
- Human Performance Department, Burnley Football Club, Burnley, United Kingdom
| | - Jack McDonnell
- Applied Data Analytics Research Group, Dundalk Institute of Technology, Louth, Ireland
| | - Rafael Oliveira
- Sports Science School of Rio Maior-Polytechnic Institute of Santarém, Rio Maior, Portugal
- Research Center in Sport Sciences, Health Sciences and Human Development, Vila Real, Portugal
- Life Quality Research Center, Rio Maior, Portugal
| | - Ryland Morgans
- Football Performance Hub, Institute of Coaching and Performance, University of Central Lancashire, Preston, United Kingdom
- School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, United Kingdom
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12
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Guimarães RDS, García-Calvo T, Raya-González J, Ponce-Bordón JC, Fatela P, Lobo-Triviño D. Effects of Contextual Variables on Match Load in a Professional Soccer Team Attending to the Different Season Periods. SENSORS (BASEL, SWITZERLAND) 2024; 24:679. [PMID: 38276372 PMCID: PMC10820192 DOI: 10.3390/s24020679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 01/11/2024] [Accepted: 01/17/2024] [Indexed: 01/27/2024]
Abstract
This study aimed to analyze the effects of contextual variables (i.e., match location and match outcome) and season periods on match load (i.e., internal and external load) in professional Brazilian soccer players. Thirty-six professional players from the same soccer team participated in this study. The season was split into four phases: matches 1-16 (i.e., Phase 1 = P1); matches 17-32 (i.e., Phase 2 = P2); matches 33-48, (i.e., Phase 3 = P3); matches 49-65 (i.e., Phase 4 = P4). Considering match outcome, when the team wins, Cognitive load, Emotional load, and Affective load were significantly higher in away vs. home matches (p < 0.05). Considering season phases, in P3, Mental Fatigue was significantly higher in drawing than in losing matches (p < 0.05). Additionally, considering the match outcome, when the team lost, Total Distance (TD)/min and TD > 19 km·h-1/min were significantly lower in P1 than P2 (p < 0.001), P3 (p < 0.001), and P4 (p < 0.001). These results suggest to strength and conditioning coaches the need to consider the outcome and location of the previous game when planning the week, as well as the phase of the season they are in to reduce fatigue and injury risk.
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Affiliation(s)
- Rodrigo dos Santos Guimarães
- Faculty of Sport Sciences, University of Extremadura, Avenida de la Universidad S/N, 10003 Caceres, Spain; (R.d.S.G.); (J.R.-G.); (J.C.P.-B.); (D.L.-T.)
| | - Tomás García-Calvo
- Faculty of Sport Sciences, University of Extremadura, Avenida de la Universidad S/N, 10003 Caceres, Spain; (R.d.S.G.); (J.R.-G.); (J.C.P.-B.); (D.L.-T.)
| | - Javier Raya-González
- Faculty of Sport Sciences, University of Extremadura, Avenida de la Universidad S/N, 10003 Caceres, Spain; (R.d.S.G.); (J.R.-G.); (J.C.P.-B.); (D.L.-T.)
| | - José C. Ponce-Bordón
- Faculty of Sport Sciences, University of Extremadura, Avenida de la Universidad S/N, 10003 Caceres, Spain; (R.d.S.G.); (J.R.-G.); (J.C.P.-B.); (D.L.-T.)
| | - Pedro Fatela
- Faculty of Human Kinetics, University of Lisbon, Estr. da Costa, 1495-751 Cruz Quebrada, Portugal;
| | - David Lobo-Triviño
- Faculty of Sport Sciences, University of Extremadura, Avenida de la Universidad S/N, 10003 Caceres, Spain; (R.d.S.G.); (J.R.-G.); (J.C.P.-B.); (D.L.-T.)
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13
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Van de Casteele F, Deprez D, Van Haaren J, Derave W, Lievens E. In professional football the decline in high-intensity running activities from first to second half is more pronounced in players with a fast muscle typology. Scand J Med Sci Sports 2024; 34:e14508. [PMID: 37792860 DOI: 10.1111/sms.14508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 08/30/2023] [Accepted: 09/19/2023] [Indexed: 10/06/2023]
Abstract
Muscle typology is heterogeneous among national level football (soccer) players, but positional differences remain unclear. Furthermore, fast typology (FT) individuals fatigue more than slow typology (ST) individuals in lab conditions. Therefore, we investigated if muscle typology is different between playing positions and if the decay in high-intensity activities from the first to the second half is larger in FT football players than in ST players. We estimated muscle typology in 147 male professional football players by measuring soleus and gastrocnemius muscle carnosine via proton magnetic resonance spectroscopy. Players were classified as ST, intermediate typology (IT) or FT and categorized as goalkeeper, center back, full back, midfielder, winger or forward. Across four seasons in-game distances covered in multiple running speed, acceleration and deceleration zones were collected during the first and second half. We found no differences in muscle typology between positions (p = 0.412). FT players covered 10.9% more high acceleration distance (>3 m.s-2 ) in the first half than ST players (p = 0.021) and high acceleration distance decay was larger for FT players (-12.4%) than ST (-7.7%; p = 0.006) and IT players (-7.3%; p = 0.010). Moreover, the decline in distance covered in several high-intensity zones tended to be larger in FT players (-11.2% high-intensity >15 km.h-1 ; -12.7% high deceleration <-3 m.s-2 ; -11.5% medium acceleration 2-3 m.s-2 ) than in ST players (-7.1% high-intensity; -8.1% high deceleration; -8.1% medium acceleration; 0.05 < p < 0.1). In conclusion, possessing a particular muscle typology is not required to play any football position at the national level. However, there are indications that FT players might fatigue more toward the end of the game compared to ST players.
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Affiliation(s)
| | | | - Jan Van Haaren
- Club Brugge NV, Knokke-Heist, Belgium
- Department of Computer Science, KU Leuven, Leuven, Belgium
| | - Wim Derave
- Department of Movement and Sports Sciences, Ghent University, Ghent, Belgium
| | - Eline Lievens
- Department of Movement and Sports Sciences, Ghent University, Ghent, Belgium
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Ribeiro JN, Yousefian F, Illa J, Couceiro M, Sampaio J, Travassos B. The Effects of Players' Rotations on High-Intensity Activities in Professional Futsal Players. J Hum Kinet 2024; 90:215-226. [PMID: 38380292 PMCID: PMC10875702 DOI: 10.5114/jhk/169522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 04/21/2023] [Indexed: 02/22/2024] Open
Abstract
The current study aimed to investigate the effects of interchange rotations on players` physical performance during competition, with special reference to high-intensity activity (HIA) according to the playing position. Physical performance data, collected from 19 professional players during seven official matches from the Spanish futsal league using a portable local positioning system, included the number of high-speed running activities (>18 km·h-1), high-intensity accelerations (>3 m·s-2), and high-intensity decelerations (>3 m·s-2). Statistically significant (p ≤ 0.05) differences were observed in the number of HIA efforts across rotations and between positions. Players performed more HIA efforts in the first rotation (n = 17.6), suggesting that their first rotation was more demanding than all subsequent rotations. Wingers demonstrated a higher HIA effort and frequency of HIA efforts when compared to defenders (p ≤ 0.05) and pivots (p ≤ 0.001). For all positions, the first rotation was more physically demanding as the number of HIA efforts per rotation decreased with an increased number of rotations throughout the match. Furthermore, higher HIA profile positions, such as wingers and defenders, were less likely to maintain consistent HIA properties (repetition number, time-frequency, and the work-rate) across subsequent rotations during the match. The findings of the study can inform coaching decisions regarding players' rotations to maintain consistent HIA performance throughout the match.
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Affiliation(s)
- João Nuno Ribeiro
- Department of Sport Sciences, University of Beira Interior, Covilhã, Portugal
- Research Centre in Sport Sciences, Health Sciences and Human Development, CIDESD, CreativeLab Research Community, Vila Real, Portugal
- Portugal Football School, Portuguese Football Federation, Oeiras, Portugal
| | - Farzad Yousefian
- Department of Sport Sciences, University of Beira Interior, Covilhã, Portugal
- Research Centre in Sport Sciences, Health Sciences and Human Development, CIDESD, CreativeLab Research Community, Vila Real, Portugal
- Portugal Football School, Portuguese Football Federation, Oeiras, Portugal
| | - Jordi Illa
- Sports Performance Area, Sport Science Department, Futbol Club Barcelona, Spain
| | | | - Jaime Sampaio
- Research Centre in Sport Sciences, Health Sciences and Human Development, CIDESD, CreativeLab Research Community, Vila Real, Portugal
| | - Bruno Travassos
- Department of Sport Sciences, University of Beira Interior, Covilhã, Portugal
- Research Centre in Sport Sciences, Health Sciences and Human Development, CIDESD, CreativeLab Research Community, Vila Real, Portugal
- Portugal Football School, Portuguese Football Federation, Oeiras, Portugal
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15
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Snyder BJ, Maung-Maung C, Whitacre C. Indicators of Fatigue during a Soccer Match Simulation Using GPS-Derived Workload Values: Which Metrics Are Most Useful? Sports (Basel) 2023; 12:9. [PMID: 38251283 PMCID: PMC10818658 DOI: 10.3390/sports12010009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 12/12/2023] [Accepted: 12/25/2023] [Indexed: 01/23/2024] Open
Abstract
Research into women's competitive soccer matches has shown distance and high-speed running (HSR) reductions over time, but the effects on some GPS-derived metrics have not been investigated. The purpose of this project was to examine the utility of common GPS metrics for indicating fatigue from the T-SAFT90 match simulation in collegiate soccer players. Unlike in competitive matches, changes to these metrics occurred as early as 15 min, with HSR, average and max speed, and speed intensity (SI) exhibiting significant declines. HSR and SI were even further decreased in later periods, with HSR lower in minutes 30-40 (T30-35 and T35-40) than T15-20 and lower in T70-85 than T45-60. SI showed a similar pattern of continued decline, reaching its lowest value in the last three time segments. Accelerations and decelerations were also decreased beginning at T15-20 and T20-25, respectively, but the fatigue index (FI), dynamic stress load (DSL), and step balance (SB) were unchanged. It can be concluded that in contrast to competitive matches where players can dictate their own intensity, a match simulation may result in a quicker onset of fatigue, but not all GPS-derived values change as expected in fatiguing environments. Coaches and sports scientists may use these findings to properly monitor fatigue in real time.
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Affiliation(s)
- Benjamin J. Snyder
- Department of Health Sciences, Furman University, Greenville, SC 29613, USA;
| | - Cameron Maung-Maung
- Department of Health Sciences, Furman University, Greenville, SC 29613, USA;
| | - Cameron Whitacre
- School of Medicine Greenville, University of South Carolina, 607 Grove Rd., Greenville, SC 29605, USA;
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16
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Bortnik L, Nir O, Forbes N, Alexander J, Harper D, Bruce-Low S, Carling C, Rhodes D. Worst Case Scenarios in Soccer Training and Competition: Analysis of Playing Position, Congested Periods, and Substitutes. RESEARCH QUARTERLY FOR EXERCISE AND SPORT 2023:1-13. [PMID: 38100605 DOI: 10.1080/02701367.2023.2290265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 11/28/2023] [Indexed: 12/17/2023]
Abstract
Aim: To understand mean (WCSmean) and peak (WCSpeak) worst case scenarios within training and game play in male professional soccer. Methods: Thirty-one (n = 31) first team players were monitored across 37 matches and 14 MD-3 sessions. Playing status was distinguished, football drills analyzed, and performance explored in long-period: >6 days, moderate-period: 5-6 days, and congested-period: ≤4 days. Relative total distance (TD), high-speed running distance (HSRD, >19.8 km·h-1), sprint distance (SD, >25.2 km·h-1), accelerations/decelerations (A+D, >3 m·s-2), accelerations (Acc, >3 m·s-2), and decelerations (Dec, >-3 m·s-2) were measured as well as Maximum acceleration (Max Acc; m·s-2) and deceleration (Max Dec; m·s-2). Results: Analysis of variance found differences between matches and training in WCSmean for TD, HSRD, SD, and Max Dec in all positions (p < .001; partial η2 > .275). Fullbacks displayed differences between match and training in Max Acc (moderate ESs; p < .001), while center backs and central midfielders in Max Dec (large ESs; p > .05). Main effects of playing status were discovered for all metrics except Max Dec (p < .001; partial η2 > .124). Analysis showed differences between long- and congested-period for A+D and Dec (large ESs; p ≤ .05). Conclusions: Findings provide more insights into short peak intensity demands of soccer showing that the maximum high velocity action of acceleration and deceleration is not being replicated in training. Nonstarters lack maximum intensity exposure in matches (WCSpeak) increasing the gap between training and competition even higher during congested fixture periods.
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Affiliation(s)
- Lukasz Bortnik
- University of Central Lancashire
- Analysis Department at Hapoel Beer Sheva FC
| | - Ofer Nir
- Analysis Department at Hapoel Beer Sheva FC
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17
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Pan P, Li F, Han B, Yuan B, Liu T. Exploring the impact of professional soccer substitute players on physical and technical performance. BMC Sports Sci Med Rehabil 2023; 15:143. [PMID: 37898786 PMCID: PMC10612320 DOI: 10.1186/s13102-023-00752-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 10/13/2023] [Indexed: 10/30/2023]
Abstract
BACKGROUND Substitutions are generally used to promote the match performance of the whole team. This study aimed to analyze the performance of substitute players and explore the performance difference among substitute players, completed players, and replaced players across each position. METHODS Chinese Super Soccer League (CSL) matches in the season 2018 including 5871 individual observation from 395 professional soccer players were analyzed by establishing linear mixed models to quantify the performance difference among substitute players (SP) (n = 1,071), entire match players (EMP) (n = 3,454), and replaced players (RP) (n = 1,346), and then separately for each position (central defenders, fullbacks, central midfielders, wide midfielders, and attackers). RESULTS The results show SP display higher high intensity distance and sprint distance significantly (p < 0.05) relative to playing time than RP and EMP. SP in offensive positions (attackers, wide midfielders) showed significantly higher (p < 0.05) passing and organizing performance such as passes, ball control, short passes, and long passes than RP or EMP. The scoring performances of central midfielders of SP including goals, shots, and shots on target are significantly higher (p < 0.05) than RP or EMP. Central defenders of SP showed higher shot blocks and pass blocks (p < 0.05) while lower passing and organizing performance (p < 0.05). CONCLUSION Depending on different playing positions, substitute players could indeed improve physical and technical performance related to scoring, passing, and defending as offensive substitute players can boost organizing performance and substitute defenders enhance defending performance. These could help coaches better understand substitute players' influence on match performance and optimize the substitution tactic.
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Affiliation(s)
- Pengyu Pan
- College of Physical Education and Sports, Beijing Normal University, Beijing, 100875, China
| | - Fangbin Li
- College of Physical Education and Sports, Beijing Normal University, Beijing, 100875, China
| | - Bo Han
- China Football College, Beijing Sport University, Beijing, 100084, China
| | - Bo Yuan
- China Football College, Beijing Sport University, Beijing, 100084, China
| | - Tianbiao Liu
- College of Physical Education and Sports, Beijing Normal University, Beijing, 100875, China.
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18
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Pérez-Chao EA, Portes R, Gómez MÁ, Parmar N, Lorenzo A, Jiménez-Sáiz SL. A Narrative Review of the Most Demanding Scenarios in Basketball: Current Trends and Future Directions. J Hum Kinet 2023; 89:231-245. [PMID: 38053946 PMCID: PMC10694712 DOI: 10.5114/jhk/170838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 05/29/2023] [Indexed: 12/07/2023] Open
Abstract
Since the analysis of most demanding scenarios (MDS) in basketball has improved the practical knowledge about match demands and possible impacts for the training process, it seems important to summarize the scientific evidence providing useful information and future directions related to MDS. This review assesses the results reflected in the available literature about the MDS in basketball, synthesizing and discussing data from scientific papers, and then providing relevant insights about terminology, sex and sample size, competition category, workload variables recorded, technology used, method of calculation, time windows analyzed, and activities evaluated related to MDS. Therefore, the present narrative review would be of practical use for coaches, scientists, athletes as well as strength and conditioning trainers exploring the current trends and future directions related to MDS in basketball.
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Affiliation(s)
- Enrique Alonso Pérez-Chao
- Facultad de Ciencias de la Actividad Física y del Deporte, Universidad Politécnica de Madrid, Madrid, Spain
- Faculty of Sports Sciences, University Alfonso X el Sabio, Villanueva de la Cañada, Spain
| | | | - Miguel Ángel Gómez
- Facultad de Ciencias de la Actividad Física y del Deporte, Universidad Politécnica de Madrid, Madrid, Spain
| | - Nimai Parmar
- London Sport Institute, Faculty of Science and Technology, Middlesex University, London, UK
| | - Alberto Lorenzo
- Facultad de Ciencias de la Actividad Física y del Deporte, Universidad Politécnica de Madrid, Madrid, Spain
| | - Sergio L. Jiménez-Sáiz
- Sport Sciences Research Centre, Faculty of Education & Sport Sciences and Interdisciplinary Studies, Universidad Rey Juan Carlos, Fuenlabrada, Spain
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19
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Jerome BWC, Stoeckl M, Mackriell B, Seidl T, Dawson CW, Fong DTP, Folland JP. The influence of ball in/out of play and possession in elite soccer: Towards a more valid measure of physical intensity during competitive match-play. Eur J Sport Sci 2023; 23:1892-1902. [PMID: 37078225 DOI: 10.1080/17461391.2023.2203120] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/21/2023]
Abstract
The physical demands of soccer match-play have typically been assessed using a low-resolution whole match approach ignoring whether the ball is in or out of play (BIP/BOP) and during these periods which team has possession. This study investigated the effect of fundamental match structure variables (BIP/BOP, in/out of possession) on the physical demands, and especially intensity, of elite match-play. For 1083 matches from a major European league, whole match duration, and player physical tracking data, were divided into BIP/BOP, and in/out of possession periods throughout the match, using on-ball event data. These distinct phases were used to derive absolute (m) and rate (m·min-1) of distance covered in total and within six speed categories during BIP/BOP and in/out possession. The rate of distance covered, an index of physical intensity, was >2-fold greater during BIP vs BOP. Whole match total distance covered was confounded by BIP time and poorly associated with physical intensity during BIP (r = 0.36). Whole match rates of distance covered substantially underestimated those during BIP, particularly for higher running speeds (∼-62%). Ball possession markedly effected physical intensity, with the rates of distance covered running (+31%), at high-speed (+30%) and in total (+7%) greater out than in possession. Whole match physical metrics underestimated the physical intensity during BIP, and thus the rate(s) of distance covered during BIP are recommended for accurate measurement of physical intensity in elite soccer. The greater demands of being out of possession support a possession-based tactical approach to minimise fatigue and its negative consequences.
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Affiliation(s)
- Benjamin W C Jerome
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
- Stats Perform, Chicago, IL, USA
| | | | | | | | - Christian W Dawson
- Department of Computer Science, Loughborough University, Loughborough, UK
| | - Daniel T P Fong
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
| | - Jonathan P Folland
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
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20
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Marqués-Jiménez D, Sampaio J, Calleja-González J, Echeazarra I. A random forest approach to explore how situational variables affect perceived exertion of elite youth soccer players. PSYCHOLOGY OF SPORT AND EXERCISE 2023; 67:102429. [PMID: 37665882 DOI: 10.1016/j.psychsport.2023.102429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 03/17/2023] [Accepted: 03/18/2023] [Indexed: 09/06/2023]
Abstract
The aim of this study was to explore how situational variables affect youth soccer players' perceived exertion (RPE) after official matches. Thirty-five elite youth male players (14.33 ± 0.86 years; 173.49 ± 6.16 cm; 63.44 ± 5.98 kg) who belonged to two different teams of a professional club participated in this study. Data collection was conducted during two seasons (2016-2017, 2017-2018) and included 60 official matches (30 official matches per team). Ten minutes after each match players rated their RPE and using a modified Borg CR-10 scale. A Random Forest Regression was used to quantify the importance of match-related situational variables in RPE. Afterwards, a linear mixed model analysis was applied to identify the variability in RPE among the situational variables. The game-playing time, the player status (starter or substitute) and the player identity were the strongest predictors of RPE. Moreover, the match outcome and the final scoreline showed significant effects on both starter and substitute players but the main effect of the quality of the opponent was only identified in starter players (p < 0.05). These results allow practitioners to know how situational variables interact and modulate RPE after official matches and help them to prescribe and adapt the players' training content and load before and after matches.
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Affiliation(s)
- Diego Marqués-Jiménez
- Valoración del rendimiento deportivo, actividad física y salud y lesiones deportivas (REDAFLED), Department of Didactics of Musical, Plastic and Corporal Expression, Faculty of Education, University of Valladolid, 42004, Soria, Spain.
| | - Jaime Sampaio
- Research Centre in Sports Sciences, Health Sciences and Human Development, CIDESD, CreativeLab Research Community, University of Trás-os-Montes e Alto Douro, 5001-801, Vila Real, Portugal
| | - Julio Calleja-González
- Department of Physical Education and Sports, Faculty of Education and Sport, University of the Basque Country, 01007, Vitoria-Gasteiz, Spain
| | - Ibon Echeazarra
- Department of Didactics of Musical, Plastic and Corporal Expression, Faculty of Education and Sport, University of the Basque Country, 01007, Vitoria-Gasteiz, Spain; Evaluation and Data Department, Real Sociedad, 20014, Donostia - San Sebastián, Spain
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21
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Furtado Mesa M, Stout JR, Redd MJ, Fukuda DH. Accumulated Workload Differences in Collegiate Women's Soccer: Starters versus Substitutes. J Funct Morphol Kinesiol 2023; 8:78. [PMID: 37367242 DOI: 10.3390/jfmk8020078] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 06/01/2023] [Accepted: 06/09/2023] [Indexed: 06/28/2023] Open
Abstract
The purpose of this study was to estimate the workloads accumulated by collegiate female soccer players during a competitive season and to compare the workloads of starters and substitutes. Data from 19 college soccer players (height: 1.58 ± 0.06 m; body mass: 61.57 ± 6.88 kg) were extracted from global positioning system (GPS)/heart rate (HR) monitoring sensors to quantify workload throughout the 2019 competitive season. Total distance, distance covered in four speed zones, accelerations, and time spent in five HR zones were examined as accumulated values for training sessions, matches, and the entire season. Repeated-measures ANOVA and Student's t tests were used to determine the level of differences between starter and substitute workloads. Seasonal accumulated total distance (p < 0.001), sprints (≥19.00 km/h; p < 0.001), and high-speed distance (≥15.00 km/h; p = 0.005) were significantly greater for starters than substitutes. Accumulated training load (p = 0.08) and training load per minute played in matches (p = 0.08) did not differ between starters and substitutes. Substitutes had similar accumulated workload profiles during training sessions but differed in matches from starters. Coaches and practitioners should pursue strategies to monitor the differences in workload between starters and substitutes.
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Affiliation(s)
- Maxine Furtado Mesa
- School of Kinesiology and Rehabilitation Sciences, University of Central Florida, Orlando, FL 32816, USA
| | - Jeffrey R Stout
- School of Kinesiology and Rehabilitation Sciences, University of Central Florida, Orlando, FL 32816, USA
| | - Michael J Redd
- School of Kinesiology and Rehabilitation Sciences, University of Central Florida, Orlando, FL 32816, USA
| | - David H Fukuda
- School of Kinesiology and Rehabilitation Sciences, University of Central Florida, Orlando, FL 32816, USA
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22
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Filter A, Olivares-Jabalera J, Dos'Santos T, Madruga M, Lozano J, Molina A, Santalla A, Requena B, Loturco I. High-intensity Actions in Elite Soccer: Current Status and Future Perspectives. Int J Sports Med 2023. [PMID: 37130547 DOI: 10.1055/a-2013-1661] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Over the years, soccer has become more physically demanding; the number and frequency of high-intensity actions have increased, and these activities are decisive in determining the match outcome. Importantly, the reductionist approach commonly used to analyze high-intensity actions does not contemplate a more contextualized perspective on soccer performance. Traditionally, most investigations have only provided quantitative data regarding sprints (i. e. time, distances, frequency) without examining "how" (e. g. type of trajectory or starting position) and "why" (e. g. tactical role) soccer players sprint. In fact, other high-intensity actions, apart from running, are not even mentioned (i. e. curve sprints, change of direction, and specific-jump tasks). This has led to the use of tests and interventions that do not accurately reflect real game actions. Given the true technical-tactical-physical demands of each playing position, this narrative review collected a wide-spectrum of current soccer-related articles and provided a discussion regarding high-intensity actions, with a positional-based approach. In this narrative review, practitioners are encouraged to contemplate and consider the different elements that characterize high-intensity actions in soccer, in order to assess and train soccer players under a more sport-specific and integrative perspective.
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Affiliation(s)
- Alberto Filter
- FSI Lab, Football Science Institute, Granada, Spain
- Research Group Physical Activity, Health and Sport CTS-948, Pablo de Olavide University, Sevilla, Spain
| | - Jesús Olivares-Jabalera
- FSI Lab, Football Science Institute, Granada, Spain
- Sport and Health University Research Institute (iMUDS), Department of Physical and Sports Education, Universidad de Granada, Granada, Spain
| | - Thomas Dos'Santos
- Department of Sport and Exercise, Manchester Metropolitan University, Manchester, United Kingdom of Great Britain and Northern Ireland
- Manchester Institute of Sport, Manchester, United Kingdom of Great Britain and Northern Ireland
| | - Marc Madruga
- Physical Therapy Department, International University of Catalonia, Barcelona, Spain
- Sport Performance Area, Barcelona Football Club, Barcelona, Spain
- Return to Play and Sports Training Center, reQ, Barcelona, Spain
| | | | - Alejandro Molina
- Sport and Health University Research Institute (iMUDS), University of Granada, Granada, Spain
- Campus Universitario, University of San Jorge Faculty of Health Sciences, Villanueva de Gallego, Spain
| | - Alfredo Santalla
- FSI Lab, Football Science Institute, Granada, Spain
- Research Group Physical Activity, Health and Sport CTS-948, Pablo de Olavide University, Sevilla, Spain
| | | | - Irineu Loturco
- Sport Science, NAR - Nucleus of High Performance in Sport, São Paulo, Brazil
- Department of Human Movement Sciences, Federal University of Sao Paulo, Sao Paulo, Brazil
- Sport and Exercise Science, University of South Wales, Pontypridd, United Kingdom of Great Britain and Northern Ireland
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23
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Castillo-Rodríguez A, González-Téllez JL, Figueiredo A, Chinchilla-Minguet JL, Onetti-Onetti W. Starters and non-starters soccer players in competition: is physical performance increased by the substitutions? BMC Sports Sci Med Rehabil 2023; 15:33. [PMID: 36927565 PMCID: PMC10018952 DOI: 10.1186/s13102-023-00641-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 03/07/2023] [Indexed: 03/18/2023]
Abstract
BACKGROUND Non-starters soccer players have a great role within the team, being indispensable to reduce fatigue, as well as to maintain and increase the team's performance during the match. OBJECTIVE This study aimed to analyze the physical performance of the starter and non-starters players during competitive soccer matches. METHODS Twenty-two soccer players participated in this study, divided into two groups according to the role in the match (starters or non-starters). WIMU Global Positioning System devices were used in order to record physical performance metrics. Independent samples t-test and one-way ANOVA tests were performed to compare starters and non-starters, and the playing position, respectively, and two-way ANOVA test was perform with these factors too. RESULTS There were no differences in the main physical performance metrics between starters and non-starters players during competition, although there were differences in physical performance metrics according to the playing position. Midfielders performed highest distance per minute, player load, and distance covered between 12 and 21 km·h- 1 (p < .05). Finally, distance covered at speeds greater than 24 km·h- 1 was predicted by the playing role (starters and non-starters) and playing position factors with 88% of explained variance (ηp2 = 0.772). CONCLUSION The main findings of this study showed that non-starter players had a similar physical performance during competitive matches as the starter players for whom they are substituted. In addition, the playing position determined different physical performance, contributing in this manuscript that behavior and decision-making of the players could be affected by their position in the field. More studies are needed on non-starter player performance and contextual factors that could influence the physical responses of these players.
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Affiliation(s)
| | | | - Antonio Figueiredo
- Research Unit for Sport and Physical Activity, Faculty of Sport Sciences and Physical Education, University of Coimbra, Coimbra, Portugal
| | - José Luis Chinchilla-Minguet
- Department of Didactics of Languages, Arts and Sport, University of Malaga, Boulevard Louis Pasteur s/n, 29011, Malaga, Spain.
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24
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Fahey JT, Aldred K, Greig M, Rhodes D. Peak Running Speeds in Professional Male Football: Influence of Division and Playing Position. J Strength Cond Res 2023; 37:636-640. [PMID: 36820705 DOI: 10.1519/jsc.0000000000004298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
ABSTRACT Fahey, JT, Aldred, K, Greig, M, and Rhodes, D. Peak running speeds in professional male football: Influence of division and playing position. J Strength Cond Res 37(3): 636-640, 2023-Well-established physical demands of competitive professional football facilitate prescription and monitoring of training. However, many factors influence these physical demands with implications for efficacious practice. Match-play data were analyzed over 2 seasons using global positioning systems technology, differentiating English Championship (33 matches) and League One (27 matches) demands. Playing position categorized wide and central defenders and midfielders and forwards. Peak running speeds defined the outcome measure, assessing the influence of the competition level and playing position across 1, 5, and 10-minute rolling average durations using a linear mixed model. Significant effects were detected for the competition level (F1,324.5 = 5.44, p = 0.02) and playing position (F4,328.3 = 89.90, p < 0.001). League One matches demonstrated greater peak running speeds than Championship matches (mean difference = 2.72 m·min-1 [95% confidence intervals: 0.4, 5.0]). No difference was observed between central and wide midfielders (mean difference = 0.62 m·min-1 [95% confidence intervals: -3.1, 4.3]). Wide midfielders presented faster peak running speeds than forwards (mean difference = 18 m·min-1 [95% confidence intervals:14.1, 22.1], p < 0.05), central defenders (mean difference = 25 m·min-1 [95% confidence intervals: 21.7, 29.8], p < 0.05), and wide defenders (mean difference = 12 m·min-1 [95% confidence intervals: 8.2, 16.5], p < 0.05). Interaction effects were found for division*position (F4,328.3 = 2.57, p = 0.038) demonstrating greater running speeds in League One, except for central defenders. Wide midfielders presented greater peak 1-minute running speeds, whereas 5 and 10-minute peak running speeds were greatest in central midfielders. The sensitivity of peak running speeds to competition level and playing position has implications for training prescription, monitoring particularly when transitioning between competition levels, determining and monitoring positional training intensities, and objective targets for progressive overload during rehabilitation.
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Affiliation(s)
- Jack T Fahey
- School of Health and Society, University of Salford, Salford, United Kingdom
| | - Kristian Aldred
- Football Performance Hub, University of Central Lancashire, Preston, United Kingdom
| | - Matt Greig
- Sport Injuries Research Group, Department of Sport and Physical Activity, Edge Hill University, Ormskirk, United Kingdom ; and
| | - David Rhodes
- Football Performance Hub, University of Central Lancashire, Preston, United Kingdom
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25
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Kołodziejczyk M, Chmura P, Modric T, Versic S, Andrzejewski M, Chmura J, Sekulic D, Rokita A, Konefał M. Do players competing in the UEFA Champions League maintain running performance until the end of the match? Positional analysis between halves and 5-minute intervals. J Sports Med Phys Fitness 2023; 63:394-401. [PMID: 35816145 DOI: 10.23736/s0022-4707.22.14069-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND This investigation aimed to analyze differences in running performances amongst playing positions between the first and second halves of soccer matches and at 5-minute intervals during matches. METHODS Data were collected from 179 soccer players during 20 UEFA Champions League (UCL) 2020/2021 group stage matches. Data were examined using the InStat Fitness semi-automatic video system. Eight variables were selected to quantify players' running performance (RP). Players were categorized based on positional groups: central defenders (CD), fullbacks (FB), central midfielders (CM), wide midfielders (WM), and forwards (FW). Univariate differences in RP were analyzed using ANOVA and the t-test for dependent samples and multivariate differences were identified using canonical discriminant analysis. RESULTS The main findings were that all positions achieved significantly higher average speeds and walking distances in the first half of the match than in the second half. Furthermore, analysis of positions showed that CM covered more distance than CD in all 5-minute intervals. In addition, WM performed more high-intensity running than CD in all 5-minute intervals and FW performed more high-intensity running than all other playing positions. CONCLUSIONS The findings from the present study should help coaches design training exercises that are specific to parts of a match. Moreover, the findings can help provide better understanding of match demands and individualization of training. Analysis of 5-minute intervals may also help coaches understand the stages of a match where player substitutions will be most effective.
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Affiliation(s)
- Michał Kołodziejczyk
- Department of Team Games, Wroclaw University of Health and Sport Sciences, Wrocław, Poland
| | - Paweł Chmura
- Department of Team Games, Wroclaw University of Health and Sport Sciences, Wrocław, Poland -
| | - Toni Modric
- Faculty of Kinesiology, University of Split, Split, Croatia
| | - Sime Versic
- Faculty of Kinesiology, University of Split, Split, Croatia
| | - Marcin Andrzejewski
- Department of Methodology of Recreation, Poznań University of Physical Education, Poznań, Poland
| | - Jan Chmura
- Department of Human Motor Skills, Wroclaw University of Health and Sport Sciences, Wrocław, Poland
| | - Damir Sekulic
- Faculty of Kinesiology, University of Split, Split, Croatia
| | - Andrzej Rokita
- Department of Team Games, Wroclaw University of Health and Sport Sciences, Wrocław, Poland
| | - Marek Konefał
- Department of Human Motor Skills, Wroclaw University of Health and Sport Sciences, Wrocław, Poland
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26
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Nishida M, Okano S, Ichinose A, Suyama S, Youn S. Daytime Napping Benefits Passing Performance and Scanning Activity in Elite Soccer Players. J Sports Sci Med 2023; 22:75-83. [PMID: 36876185 PMCID: PMC9982537 DOI: 10.52082/jssm.2023.75] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 01/22/2023] [Indexed: 02/03/2023]
Abstract
The present study explored the effect of a daytime napping opportunity on scanning activity, which is an essential component of successful soccer performance. Fourteen male elite collegiate soccer players performed the Trail Making Test (TMT), which was used to assess complex visual attention. In addition, a soccer passing test, modified with reference to the Loughborough Soccer Passing Test, was used to evaluate passing performance as well as scanning activity. A cross-over design was applied to examine nap and no-nap interventions. Participants (N = 14, mean age: 21.6 SD = 0.5 years, height: 1.73 ± 0.06 m, body mass: 67.1 ± 4.5 kg) were randomly allocated to a midday nap (40 minutes) or no-nap group. Subjective sleepiness was measured using the Karolinska Sleepiness Scale, and perceptive fatigue was evaluated by the visual analog scale. There were no significant differences in subjective measurements or TMT between the nap and no-nap groups. However, the performance time for the passing test and scanning activity was significantly shorter (p < 0.001) and scanning activity was significantly more frequent in the nap condition than in the no-nap condition (p < 0.00005). These results suggest that daytime napping is beneficial for soccer-related cognitive function, represented by visuospatial processing and decision-making, and particularly as a potential countermeasure to mental fatigue. Considering that inadequate sleep and residual fatigue are commonly observed in elite soccer, this finding may have practical implications for the preparation of players.
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Affiliation(s)
- Masaki Nishida
- Faculty of Sport Sciences, Waseda University.,Sleep Research Institute, Waseda University, Japan
| | - Shuta Okano
- Faculty of Sport Sciences, Waseda University
| | - Atsushi Ichinose
- Faculty of Sport Sciences, Waseda University.,Sleep Research Institute, Waseda University, Japan
| | - Shutaro Suyama
- Faculty of Sport Sciences, Waseda University.,Sleep Research Institute, Waseda University, Japan
| | - Sumi Youn
- Faculty of Sport Sciences, Waseda University.,Sleep Research Institute, Waseda University, Japan
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27
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Oliva-Lozano JM, Martínez-Puertas H, Fortes V, Muyor JM. When do soccer players experience the most demanding passages of match play? A longitudinal study in a professional team. Res Sports Med 2023; 31:101-111. [PMID: 34162290 DOI: 10.1080/15438627.2021.1943390] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
This study analysed the periods in which the most demanding passages (MDP) of play occurred during professional soccer matches, considering different criterion variables and investigating the effect that the playing position had on the MDP-of-play occurrence for each criterion variable. The MDP of play were calculated based on five criterion variables: distance covered (DIS), sprinting distance (SPD), high-metabolic load distance (HMLD), and the total of high-intensity accelerations and decelerations (ACCHIGH and DECHIGH). The results showed that the first period of the match (0'-15') was the interval with the highest frequency (i.e., the greatest % of cases) in which the players achieved the MDP of play for all the variables (DIS= 38.9%; SPD= 28.4%; HMLD= 37.7%; ACCHIGH= 54.3%; DECHIGH= 48.8%). The playing position had no significant effect on MDP-of-play occurrence in any variable (likelihood ratio, LR= 15.88-32.05; p > 0.05; effect size, ES= 0.01-0.04), except for the DIS covered (LR= 32.05; p= 0.04; ES= 0.05), in which the most frequent MDP for the full backs occurred within the second period of the match (15'-30'). In conclusion, the first periods of the matches usually elicited the MDP of play and these periods need to be trained to prevent injuries and optimize performance.
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Affiliation(s)
| | | | - Víctor Fortes
- Unión Deportiva Almería, Sport Science Area, Almería, Spain
| | - José M Muyor
- Health Research Centre, University of Almería, Almería, Spain.,Laboratory of Kinesiology, Biomechanics and Ergonomics (KIBIOMER Lab.), Research Central Services, University of Almería, Almería, Spain
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28
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López-Valenciano A, Moreno-Perez V, Campo RLD, Resta R, Coso JD. The Five-substitution Option Enhances Teams' Running Performance at High Speed in Football. Int J Sports Med 2023; 44:344-351. [PMID: 36669526 DOI: 10.1055/a-1982-9808] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The aim of this investigation was to describe how the introduction of the five-substitution option affected football teams' running performance. A comparative analysis was performed in 17 professional football teams for the 2019-2020 (up to three substitutions) vs 2020-2021 (five substitutions option) seasons in LaLiga. The five-substitution option increased the number of substitutions (from 2.9±0.1 to 4.2±1.0 substitutions/match, respectively; p<0.01, Effect Size (ES)=2.11) but it did not change the time selected for the first substitution (from 57.5±13.0 to 56.2±13.7 min; p=0.06, ES=0.1). Total running distance was similar between seasons but running distance at 21.0-23.9 km/h (from 3.0±0.4 to 3.2±0.4 km; p=0.01, ES=0.6) and at≥24.0 km/h (from 3.0±0.6 to 3.2±0.5 km; p=0.01, ES=0.3) were higher with the five-substitution option. These increases were associated with a higher distance covered by starting players (p<0.05) rather than an effect of substitute players.: With the five-substitution option, team coaches increased the number of substitutions per match which enhanced the possibilities of the team's staff to manage players' physical load. The five-substitution option allowed also increased running performance at≥21.0 km/h during the matches.
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Affiliation(s)
| | - Víctor Moreno-Perez
- Sports Research Centre (Department of Sport Sciences), Miguel Hernandez University of Elche, Alicante, Spain
| | | | - Ricardo Resta
- Department of Competitions and Mediacoach, LaLiga, Madrid, Spain
| | - Juan Del Coso
- Centre for Sport Studies. Rey Juan Carlos Univeristy, Spain
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29
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Martins F, Marques A, França C, Sarmento H, Henriques R, Ihle A, de Maio Nascimento M, Saldanha C, Przednowek K, Gouveia ÉR. Weekly External Load Performance Effects on Sports Injuries of Male Professional Football Players. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:1121. [PMID: 36673875 PMCID: PMC9859064 DOI: 10.3390/ijerph20021121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/17/2022] [Accepted: 01/05/2023] [Indexed: 05/23/2023]
Abstract
One of the most challenging issues professional football players face throughout their careers is injuries. Those injuries often result from suboptimal training programs that were not designed according to the players' individual needs. This prospective study aimed to examine in detail the effects of sports injuries on professional football players' weekly external load performances. Thirty-three male professional football players were monitored using 10-Hz Global Positioning System (GPS) units (Apex pro series, StatSports) during an entire season. The variables considered in the analysis were total distance (TD), high-speed running (HSR), accelerations (ACC), and decelerations (DEC). The comparisons were made between the four-week block before injury (-4T), four-week block after return (+4T), and players' season averages (S). Players displayed significantly higher values of TD, HSR, ACC, and DEC in the -4T, compared to the other two moments (+4T and S). Furthermore, the comparison between the +4T and S showed no significant variations in the GPS metrics. It was shown that a significant increase in players' weekly external load performance over a four-week period may have a negative effect on the occurrence of injuries from a professional football standpoint. Future research should consider the effects of injury severity on players' external load variations.
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Affiliation(s)
- Francisco Martins
- Department of Physical Education and Sport, University of Madeira, 9020-105 Funchal, Portugal
- LARSYS, Interactive Technologies Institute, 9020-105 Funchal, Portugal
| | - Adilson Marques
- CIPER, Faculty of Human Kinetics, University of Lisbon, 1495-751 Lisbon, Portugal
- ISAMB, Faculty of Medicine, University of Lisbon, 1649-020 Lisbon, Portugal
| | - Cíntia França
- Department of Physical Education and Sport, University of Madeira, 9020-105 Funchal, Portugal
- LARSYS, Interactive Technologies Institute, 9020-105 Funchal, Portugal
- Research Center in Sports Sciences, Health Sciences, and Human Development (CIDESD), 5000-801 Vila Real, Portugal
| | - Hugo Sarmento
- University of Coimbra, Research Unit for Sport and Physical Activity (CIDAF), Faculty of Sport Sciences and Physical Education, 3004-504 Coimbra, Portugal
| | | | - Andreas Ihle
- Department of Psychology, University of Geneva, 1205 Geneva, Switzerland
- Center for the Interdisciplinary Study of Gerontology and Vulnerability, University of Geneva, 1205 Geneva, Switzerland
- Swiss National Centre of Competence in Research LIVES—Overcoming Vulnerability: Life Course Perspectives, 1015 Lausanne, Switzerland
| | - Marcelo de Maio Nascimento
- Department of Physical Education, Federal University of Vale do São Francisco, Petrolina 56304-917, Brazil
| | - Carolina Saldanha
- University of Coimbra, Research Unit for Sport and Physical Activity (CIDAF), Faculty of Sport Sciences and Physical Education, 3004-504 Coimbra, Portugal
| | - Krzysztof Przednowek
- Institute of Physical Culture Sciences, Medical College, University of Rzeszów, 35-959 Rzeszów, Poland
| | - Élvio Rúbio Gouveia
- Department of Physical Education and Sport, University of Madeira, 9020-105 Funchal, Portugal
- LARSYS, Interactive Technologies Institute, 9020-105 Funchal, Portugal
- Center for the Interdisciplinary Study of Gerontology and Vulnerability, University of Geneva, 1205 Geneva, Switzerland
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30
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Zhou Q. FATIGUE AND THE RECOVERY WAYS IN ATHLETE RUNNERS. REV BRAS MED ESPORTE 2023. [DOI: 10.1590/1517-8692202329012022_0480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
ABSTRACT Introduction: With the continuous development of running, great changes have occurred in training media, equipment, and training concepts. Running fatigue and recovery have increasingly become the direction of research by scientists worldwide. Objective: In this paper, the mechanism, causes, and measures of biological recovery in athletes during training are discussed. Method: The effects of different interventions on athletes' recovery after training were analyzed through protocoled experiments. Effective methods of fatigue recovery were presented. The study compared the variables of the sprinter's morning heart rate, blood pressure, body temperature, CK, BUN, RPE, and other indicators to understand the recovery of middle and long-distance runners after training. Results: Recovery measures are effective when combined with exercise training based on the fatigue mechanism. Conclusion: Subjective sensory, physiological, and biochemical indicators are used to judge the intensity of fatigue in exercise training, and the fatigue recovery phase of exercise training is an important item to consider during training activities. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
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31
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The Effect of a Single Dose of Citrulline on the Physical Performance of Soccer-Specific Exercise in Adult Elite Soccer Players (A Pilot Randomized Double-Blind Trial). Nutrients 2022; 14:nu14235036. [PMID: 36501066 PMCID: PMC9739774 DOI: 10.3390/nu14235036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/19/2022] [Accepted: 11/23/2022] [Indexed: 11/29/2022] Open
Abstract
PURPOSE The purpose of this study was to evaluate the effect of a single intake of citrulline at 3 g and 6 g doses in adult elite soccer players performing sport-specific exercise. MATERIALS AND METHODS This randomized double-blind placebo-controlled study analyzed 18 soccer players from the top divisions of three European countries. Participants were randomized into three groups of six each and performed a field-based soccer-specific test for 18 min. Comparative analysis of heart rate, fatigue and post-exercise recovery was conducted. RESULTS There were no statistically significant differences in most of the analyzed parameters, nor at any of the time points for lactate concentration. Players' RPE exercise test score did not reveal any differences. CONCLUSIONS Neither a single intake of 3 g nor of 6 g of citrulline malate affected physical performance, subjective feelings of fatigue or post-exercise recovery in adult elite soccer players who performed a soccer-specific test.
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32
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Silva JR. The soccer season: performance variations and evolutionary trends. PeerJ 2022; 10:e14082. [PMID: 36217385 PMCID: PMC9547588 DOI: 10.7717/peerj.14082] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 08/29/2022] [Indexed: 01/20/2023] Open
Abstract
The physiological demands of soccer challenge the entire spectrum of the response capacity of the biological systems and fitness requirements of the players. In this review we examined variations and evolutionary trends in body composition, neuromuscular and endurance-related parameters, as well as in game-related physical parameters of professional players. Further, we explore aspects relevant for training monitoring and we reference how different training stimulus and situational variables (e.g., competition exposure) affect the physiological and performance parameters of players. Generally, improvements of small magnitude in non- (non-CMJ) and countermovement-based jumps (CMJBased) and in the sprint acceleration (ACCPhase) and maximal velocity phase (MVPhase) are observed from start of preparation phase (PPS) to beginning of competition phase (BCP). A greater magnitude of increases is observed in physiological and endurance performance measures within this period; moderate magnitude in sub-maximal intensity exercise (velocity at fixed blood lactate concentrations; V2-4mmol/l) and large magnitude in VO2max, maximal aerobic speed (MAS) and intense intermittent exercise performance (IE). In the middle of competition phase (MCP), small (CMJBased and ACCPhase), moderate (non-CMJ; MVPhase; VO2max; sub-maximal exercise) and large (MAS and IE) improvements were observed compared to PPS. In the end of competition period (ECP), CMJBased and MVPhase improve to a small extent with non-CMJ, and ACCPhase, VO2max, MAS, sub-maximal intensity exercise and IE revealing moderate increments compared to PPS. Although less investigated, there are generally observed alterations of trivial magnitude in neuromuscular and endurance-related parameters between in-season assessments; only substantial alterations are examined for IE and sub-maximal exercise performance (decrease and increase of small magnitude, respectively) from BCP to MCP and in VO2max and IE (decrements of small magnitude) from MCP to ECP. Match performance may vary during the season. Although, the variability between studies is clear for TD, VHSR and sprint, all the studies observed substantial increments in HSR between MCP and ECP. Finally, studies examining evolutionary trends by means of exercise and competition performance measures suggests of a heightened importance of neuromuscular factors. In conclusion, during the preseason players "recover" body composition profile and neuromuscular and endurance competitive capacity. Within in-season, and more robustly towards ECP, alterations in neuromuscular performance seem to be force-velocity dependent, and in some cases, physiological determinants and endurance performance may be compromised when considering other in-season moments. Importantly, there is a substantial variability in team responses that can be observed during in-season. Consequently, this informs on the need to both provide a regular training stimulus and adequate monitorization throughout the season.
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Affiliation(s)
- Joao Renato Silva
- Center for Research, Education, Innovation, and Intervention in Sport (CIFI2D), Faculty of Sport, University of Porto, Portugal
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Martins F, França C, Marques A, Iglésias B, Sarmento H, Henriques R, Ihle A, Lopes H, Ornelas RT, Gouveia ÉR. Sports Injuries of a Portuguese Professional Football Team during Three Consecutive Seasons. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph191912582. [PMID: 36231882 PMCID: PMC9565996 DOI: 10.3390/ijerph191912582] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 09/22/2022] [Accepted: 09/24/2022] [Indexed: 05/30/2023]
Abstract
Professional football players are exposed to high injury risk due to the physical demands of this sport. The purpose of this study was to characterize the injuries of a professional football team in the First Portuguese League over three consecutive sports seasons. Seventy-one male professional football players in the First Portuguese Football League were followed throughout the sports seasons of 2019/2020, 2020/2021, and 2021/2022. In total, 84 injuries were recorded. Each player missed an average of 16.6 days per injury. Lower limbs were massively affected by injuries across all three seasons, mainly with muscular injuries in the quadriceps and hamstrings and sprains in the tibiotarsal structure. Overall, the injury incidence was considerably higher in matches than in training. The two times of the season that proved most conducive to injuries were the months of July and January. Our results emphasize the importance of monitoring sports performance, including injury occurrence, and assisting in identifying risk factors in professional football. Designing individualized training programs and optimizing prevention and recovery protocols are crucial for maximizing this global process.
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Affiliation(s)
- Francisco Martins
- Department of Physical Education and Sport, University of Madeira, 9020-105 Funchal, Portugal
- Laboratory of Robotics and Engineering Systems, Interactive Technologies Institute, 9020-105 Funchal, Portugal
| | - Cíntia França
- Department of Physical Education and Sport, University of Madeira, 9020-105 Funchal, Portugal
- Laboratory of Robotics and Engineering Systems, Interactive Technologies Institute, 9020-105 Funchal, Portugal
| | - Adilson Marques
- CIPER, Faculty of Human Kinetics, University of Lisbon, 1499-002 Lisbon, Portugal
- ISAMB, Faculty of Medicine, University of Lisbon, 1649-020 Lisbon, Portugal
| | - Beatriz Iglésias
- Faculty of Human Kinetics, University of Lisbon, 1499-002 Lisbon, Portugal
| | - Hugo Sarmento
- Research Unit for Sport and Physical Activity (CIDAF), Faculty of Sports Sciences and Physical Education, University of Coimbra, 2004-504 Coimbra, Portugal
| | | | - Andreas Ihle
- Department of Psychology, University of Geneva, 1205 Geneva, Switzerland
- Center for the Interdisciplinary Study of Gerontology and Vulnerability, University of Geneva, 1205 Geneva, Switzerland
- Swiss National Centre of Competence in Research LIVES—Overcoming Vulnerability: Life Course Perspectives, 1015 Lausanne, Switzerland
| | - Helder Lopes
- Department of Physical Education and Sport, University of Madeira, 9020-105 Funchal, Portugal
| | - Rui T. Ornelas
- Department of Physical Education and Sport, University of Madeira, 9020-105 Funchal, Portugal
| | - Élvio Rúbio Gouveia
- Department of Physical Education and Sport, University of Madeira, 9020-105 Funchal, Portugal
- Laboratory of Robotics and Engineering Systems, Interactive Technologies Institute, 9020-105 Funchal, Portugal
- Center for the Interdisciplinary Study of Gerontology and Vulnerability, University of Geneva, 1205 Geneva, Switzerland
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Decline in Running Performance in Highest-Level Soccer: Analysis of the UEFA Champions League Matches. BIOLOGY 2022; 11:biology11101441. [PMID: 36290343 PMCID: PMC9598698 DOI: 10.3390/biology11101441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 09/27/2022] [Accepted: 09/29/2022] [Indexed: 11/05/2022]
Abstract
It is widely recognized that there is a decline in match running performance (MRP) towards the end of matches. To clarify whether it is primarily a consequence of fatigue, pacing or situational influences, this study aimed to examine MRP across 15-min match periods for players on different playing positions. Players’ MRP (n = 244) were examined from the UEFA Champions League matches (n = 20) using a semiautomatic optical tracking system. Linear mixed models for repeated measures were adjusted to analyze MRP over the six 15-min match periods while controlling the influence of situational factors. No effects of match outcome, match location, team, and opponent quality on total distance (TD) and high-intensity running (HIR) for players in all playing positions were found (F = 0.03−2.75; all p > 0.05). Significant differences in TD (F = 17.57−53.01; η2 = 0.39−0.52, all large effect sizes) and HIR (F = 3.67−7.64; η2 = 0.05−0.19, small to medium effect sizes) among six 15-minute match periods were found for players in all playing positions. In addition, players in all playing positions covered less TD (d = 1.41−2.15, large to very large effect sizes) and HIR (d = 0.16−0.6, trivial to medium effect sizes) in the last compared to the first 15-min match period. No differences in TD and HIR between the last two match periods in the second half were observed. This study confirmed that soccer players reduce MRP towards the end of matches, and suggest that the decline of MPR in highest-level soccer may be a consequence of pacing strategies.
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Kobal R, Aquino R, Carvalho L, Serra A, Sander R, Gomes N, Concon V, Ramos GP, Barroso R. Does the Number of Substitutions Used during the Matches Affect the Recovery Status and the Physical and Technical Performance of Elite Women's Soccer? INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:11541. [PMID: 36141814 PMCID: PMC9517676 DOI: 10.3390/ijerph191811541] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 09/06/2022] [Accepted: 09/12/2022] [Indexed: 06/16/2023]
Abstract
The aim of this study was to compare the effect of a new rule for substitutions (four and five) with the rule before the COVID-19 pandemic (up to three) on recovery status, physical and technical performance, internal workload, and recovery process in elite women soccer players. Thirty-eight matches from 2019 to 2020 from the Brazilian Championships were analyzed. All data for the two conditions (≤3 and 4-5 substitutions) were compared using an independent t-test. The physical demands measured by a global positioning system (GPS) and the technical (obtained from Instat) and internal workload (rating of perceived exertion [RPE]) were assessed. The recovery process was measured by the total quality recovery (TQR) 24 h after each match. No differences were observed in any physical and technical parameters between 4-5 and ≤3 substitutions (p > 0.05). Moreover, 4-5 substitutions demonstrated lower RPE (p < 0.001) and workload-RPE (p < 0.001), higher TQR (p = 0.008), and lower time played by the player (p < 0.001), compared to ≤3. Thus, the new provisory rule for substitutions improved the balance between stress and recovery.
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Affiliation(s)
- Ronaldo Kobal
- School of Physical Education, University of Campinas, Campinas 13083-851, Brazil
- Sport Club Corinthians Paulista, São Paulo 03087-000, Brazil
| | - Rodrigo Aquino
- LabSport, Department of Sports, Centre of Physical Education and Sports, Federal University of Espírito Santo, Vitória 29075-910, Brazil
| | - Leonardo Carvalho
- School of Physical Education, University of Campinas, Campinas 13083-851, Brazil
| | - Adriano Serra
- School of Physical Education, University of Campinas, Campinas 13083-851, Brazil
| | - Rafaela Sander
- School of Physical Education, University of Campinas, Campinas 13083-851, Brazil
| | - Natan Gomes
- School of Physical Education, University of Campinas, Campinas 13083-851, Brazil
| | - Vinicius Concon
- School of Physical Education, University of Campinas, Campinas 13083-851, Brazil
| | - Guilherme Passos Ramos
- Brazilian Football Confederation, Rio de Janeiro 22775-055, Brazil
- Laboratory of Endocrinology and Metabolism, Federal University of Minas Gerais, Belo Horizonte 31270-901, Brazil
| | - Renato Barroso
- School of Physical Education, University of Campinas, Campinas 13083-851, Brazil
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Martins F, Przednowek K, França C, Lopes H, de Maio Nascimento M, Sarmento H, Marques A, Ihle A, Henriques R, Gouveia ÉR. Predictive Modeling of Injury Risk Based on Body Composition and Selected Physical Fitness Tests for Elite Football Players. J Clin Med 2022; 11:4923. [PMID: 36013162 PMCID: PMC9409763 DOI: 10.3390/jcm11164923] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 08/17/2022] [Accepted: 08/18/2022] [Indexed: 12/25/2022] Open
Abstract
Injuries are one of the most significant issues for elite football players. Consequently, elite football clubs have been consistently interested in having practical, interpretable, and usable models as decision-making support for technical staff. This study aimed to analyze predictive modeling of injury risk based on body composition variables and selected physical fitness tests for elite football players through a sports season. The sample comprised 36 male elite football players who competed in the First Portuguese Soccer League in the 2020/2021 season. The models were calculated based on 22 independent variables that included players' information, body composition, physical fitness, and one dependent variable, the number of injuries per season. In the net elastic analysis, the variables that best predicted injury risk were sectorial positions (defensive and forward), body height, sit-and-reach performance, 1 min number of push-ups, handgrip strength, and 35 m linear speed. This study considered multiple-input single-output regression-type models. The analysis showed that the most accurate model presented in this work generates an error of RMSE = 0.591. Our approach opens a novel perspective for injury prevention and training monitorization. Nevertheless, more studies are needed to identify risk factors associated with injury prediction in elite soccer players, as this is a rising topic that requires several analyses performed in different contexts.
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Affiliation(s)
- Francisco Martins
- Department of Physical Education and Sport, University of Madeira, 9020-105 Funchal, Portugal
- Laboratory of Robotics and Engineering Systems, Interactive Technologies Institute, 9020-105 Funchal, Portugal
| | - Krzysztof Przednowek
- Institute of Physical Culture Sciences, Medical College, University of Rzeszów, 35-959 Rzeszów, Poland
| | - Cíntia França
- Department of Physical Education and Sport, University of Madeira, 9020-105 Funchal, Portugal
- Laboratory of Robotics and Engineering Systems, Interactive Technologies Institute, 9020-105 Funchal, Portugal
| | - Helder Lopes
- Department of Physical Education and Sport, University of Madeira, 9020-105 Funchal, Portugal
| | - Marcelo de Maio Nascimento
- Department of Physical Education, Federal University of Vale do São Francisco, Petrolina 56304-917, Brazil
| | - Hugo Sarmento
- University of Coimbra, Research Unit for Sport and Physical Activity (CIDAF), Faculty of Sport Sciences and Physical Education, 3004-504 Coimbra, Portugal
| | - Adilson Marques
- CIPER, Faculty of Human Kinetics, University of Lisbon, 1495-751 Lisbon, Portugal
- ISAMB, Faculty of Medicine, University of Lisbon, 1649-020 Lisbon, Portugal
| | - Andreas Ihle
- Department of Psychology, University of Geneva, 1205 Geneva, Switzerland
- Center for the Interdisciplinary Study of Gerontology and Vulnerability, University of Geneva, 1205 Geneva, Switzerland
- Swiss National Centre of Competence in Research LIVES—Overcoming Vulnerability: Life Course Perspectives, 1015 Lausanne, Switzerland
| | | | - Élvio Rúbio Gouveia
- Department of Physical Education and Sport, University of Madeira, 9020-105 Funchal, Portugal
- Laboratory of Robotics and Engineering Systems, Interactive Technologies Institute, 9020-105 Funchal, Portugal
- Center for the Interdisciplinary Study of Gerontology and Vulnerability, University of Geneva, 1205 Geneva, Switzerland
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Hills SP, Barrett S, Thoseby B, Kilduff LP, Barwood MJ, Radcliffe JN, Cooke CB, Russell M. Quantifying the Peak Physical Match-Play Demands of Professional Soccer Substitutes Following Pitch-Entry: Assessing Contextual Influences. RESEARCH QUARTERLY FOR EXERCISE AND SPORT 2022; 93:270-281. [PMID: 33030984 DOI: 10.1080/02701367.2020.1823308] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 09/07/2020] [Indexed: 06/11/2023]
Abstract
Purpose: To quantify the peak post-pitch-entry physical responses of soccer substitutes while assessing contextual influences. Peak responses may be important performance indicators for substitutes introduced to provide a physical impact. Method: Thirty-three professional substitutes wore Microelectromechanical Systems during 44 matches (4 ± 3 observations·player-1). Post-pitch-entry relative peak values for total and high-speed (> 5.5 m·s-1) distances, average acceleration, and PlayerLoad™ were calculated using rolling averages over 60-s to 600-s. Linear mixed models assessed contextual influences (position, substitution timing, scoreline, and location). Results: Substitutes introduced during the final ~15 min of match-play covered less high-speed distance than first-half substitutes (~2.8-3.1 m·min-1) over 480-s to 600-s epochs, and less than 60:00-74:59 min substitutes (~1.7-1.8 m·min-1) during 540-s and 600-s epochs. Average acceleration during all except 180-s epochs was lower for 75:00+ min substitutes compared with first-half replacements (~0.27-0.43 m·s-2), and lower than 60:00-74:59 min substitutes during 60-s (~0.13 m·s-2). Substitutes introduced when their team was winning recorded greater distances over 120-s to 600-s (~6.2-7.7 m·min-1), and higher PlayerLoad™ values during 120-s, 180-s, 300-s, and 480-s epochs (~2.7-3.6 arbitrary units·min-1), compared with when scores were level at pitch-entry. Irrespective of substitution timing, substitute midfielders exceeded the total distance of substitute attackers (~5.9-16.2 m·min-1) for all except 360-s and 600-s epochs, and defenders (~13.3-26.7 m·min-1) during epochs < 300-s. Conclusions: This study provides benchmark data for practitioners tailoring training and recovery protocols, particularly "top-up" conditioning, to the competitive demands of soccer substitutes. Knowing how contextual factors influence substitutes' peak match-play responses may help managers/coaches assess the efficacy of substitution strategies.
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Lorenzo-Martínez M, Rein R, Garnica-Caparrós M, Memmert D, Rey E. The Effect of Substitutions on Team Tactical Behavior in Professional Soccer. RESEARCH QUARTERLY FOR EXERCISE AND SPORT 2022; 93:301-309. [PMID: 33054664 DOI: 10.1080/02701367.2020.1828563] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 09/22/2020] [Indexed: 06/11/2023]
Abstract
Player substitutions are one of the main options for the coach to change tactical behavior of his team. Purpose: The present study therefore investigates the effect of player substitutions on tactical behavior in high-performance soccer using positional data. Method: The sample consisted of 659 substitutions from 234 matches played in the German Bundesliga during the season 2016-2017. Substitutions were classified either as neutral (n = 485), defensive (n = 45), or offensive (n = 129) according to the player's roles. The teams' tactical behavior before and after each substitution was analyzed using team centroid, inter-team centroid distance, team length and width, length per width (LpW) ratio, stretch index, and space control for the whole pitch and for each third as the dependent variables. Results: The linear mixed model analysis showed different effects for neutral, defensive, and offensive substitutions. Teams displayed significantly lower stretch index after defensive substitutions. LpW ratio increased with neutral and offensive substitutions, while inter-team distance decreased. The position of the team centroid, space control in the middle third and in the attacking third were also greater following an offensive substitution. Conclusions: These findings demonstrate that player substitutions effectively change tactical behavior of teams. Soccer coaches should perform more offensive substitutions to elicit a higher defensive pressure and improve goal-scoring opportunities, especially due to greater space control in the attacking third. In contrast, defensive substitutions can be used to increase defensive effectiveness through increases in team compactness.
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Calderón-Pellegrino G, Gallardo L, Garcia-Unanue J, Felipe JL, Hernandez-Martin A, Paredes-Hernández V, Sánchez-Sánchez J. Physical Demands during the Game and Compensatory Training Session (MD + 1) in Elite Football Players Using Global Positioning System Device. SENSORS (BASEL, SWITZERLAND) 2022; 22:3872. [PMID: 35632281 PMCID: PMC9145854 DOI: 10.3390/s22103872] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 05/10/2022] [Accepted: 05/17/2022] [Indexed: 11/26/2022]
Abstract
The aims of this study were to analyze the differences of physical demands of non-starter players regarding the playing time during the competition and to evaluate the physical demands of the compensatory training (MD + 1C) for substitute players in elite football. The match statistics and MD + 1C of substitute players from a professional Spanish LaLiga football club were analyzed using a 10-Hz global positioning system (GPS) Apex GPS system device, which has been validated as a reliable and valid method to analyze performance in team sports, during all games of the 2016/2017, 2017/2018 and 2018/2019 seasons. The starting players showed both lower total distances covered and high-intensity actions compared to the substitutes. Regarding the minutes played by the substitutes, greater physical performance was found for the players with fewer minutes (5−15 min). Furthermore, no differences were found between first and second divisions regarding physical performance of substitutes (p > 0.05). This study highlights the importance of individualizing the workload of training sessions for substitutes and starters. Furthermore, the complementary session should be individualized according to the minutes played by the substitutes. These players are potentially under-loaded compared to starters, especially in terms of high-intensity actions, therefore additional session-specific training for each substitute would be useful to reach the optimal training load according to the minutes played during the game.
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Affiliation(s)
| | - Leonor Gallardo
- IGOID Research Group, University of Castilla-La Mancha, 45071 Toledo, Spain; (L.G.); (J.G.-U.); (A.H.-M.)
| | - Jorge Garcia-Unanue
- IGOID Research Group, University of Castilla-La Mancha, 45071 Toledo, Spain; (L.G.); (J.G.-U.); (A.H.-M.)
| | - Jose Luis Felipe
- Faculty of Sport Sciences, Universidad Europea de Madrid, 28670 Madrid, Spain; (J.L.F.); (J.S.-S.)
| | - Antonio Hernandez-Martin
- IGOID Research Group, University of Castilla-La Mancha, 45071 Toledo, Spain; (L.G.); (J.G.-U.); (A.H.-M.)
| | | | - Javier Sánchez-Sánchez
- Faculty of Sport Sciences, Universidad Europea de Madrid, 28670 Madrid, Spain; (J.L.F.); (J.S.-S.)
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Alonso Pérez-Chao E, Gómez MÁ, Lisboa P, Trapero J, Jiménez SL, Lorenzo A. Fluctuations in External Peak Demands Across Quarters During Basketball Games. Front Physiol 2022; 13:868009. [PMID: 35492582 PMCID: PMC9039040 DOI: 10.3389/fphys.2022.868009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 03/15/2022] [Indexed: 11/23/2022] Open
Abstract
The purpose of this study was to compare external peak demands (PDs) across quarters (Q) in basketball. Thirteen elite, junior, male basketball players were monitored using electronic performance tracking systems. There were studied intervals for different time windows to determine the external PD for distance (m); player load; distance covered in four different zones; accelerations; and decelerations. A mixed linear model was run to identify differences among quarters, and the auto-correlation function was carried out to determine fluctuations across the whole game. The results showed significant differences between Q1 vs. Q2 for distance, player load, and standing–walking distance; between Q1 vs. Q3 for distance, player load, and HSR; between Q1 vs. Q4 for distance, player load, standing–walking, and HSR; and between Q3 vs. Q4 for distance and player load. These findings suggest that external PD for running-based demands (distance, player load, and high-speed running) decrease across basketball games with the most notable declines occurring between the first and fourth quarters. Nevertheless, it is important to note that non-significant differences were found between quarters for several external PD variables (jogging, running, acceleration, and deceleration) across different time windows. Findings from the present study reinforce the importance of considering specific PD variables for different functions due to the specific insight each provides.
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Affiliation(s)
- Enrique Alonso Pérez-Chao
- Facultad de Ciencias de la Actividad Física y del Deporte, Universidad Politécnica de Madrid, Madrid, Spain
- Department of Physical Activity and Sports Science, Universidad Alfonso X el Sabio, Villanueva de la Cañada, Spain
| | - Miguel-Ángel Gómez
- Facultad de Ciencias de la Actividad Física y del Deporte, Universidad Politécnica de Madrid, Madrid, Spain
| | - Pedro Lisboa
- Faculty of Sports Sciences, Universidad Europea de Madrid, Madrid, Spain
| | - Juan Trapero
- Faculty of Sports Sciences, Universidad Europea de Madrid, Madrid, Spain
| | - Sergio L. Jiménez
- Centre for Sport Studies, Universidad Rey Juan Carlos, Madrid, Spain
- *Correspondence: Sergio L. Jiménez,
| | - Alberto Lorenzo
- Facultad de Ciencias de la Actividad Física y del Deporte, Universidad Politécnica de Madrid, Madrid, Spain
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Gregory S, Robertson S, Aughey R, Duthie G. The influence of tactical and match context on player movement in football. J Sports Sci 2022; 40:1063-1077. [DOI: 10.1080/02640414.2022.2046938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Sam Gregory
- Institute for Health & Sport (IHES), Victoria University, Melbourne, Australia
| | - Sam Robertson
- Institute for Health & Sport (IHES), Victoria University, Melbourne, Australia
| | - Robert Aughey
- Institute for Health & Sport (IHES), Victoria University, Melbourne, Australia
| | - Grant Duthie
- School of Exercise Science, Australian Catholic University, Australian Catholic University, Strathfield, Australia
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Lorenzo-Martinez M, Kalén A, Rey E, López-Del Campo R, Resta R, Lago-Peñas C. Do elite soccer players cover less distance when their team spent more time in possession of the ball? SCI MED FOOTBALL 2022; 5:310-316. [PMID: 35077300 DOI: 10.1080/24733938.2020.1853211] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Purpose: The aim of this study was to examine the association between the time spent in possession by teams and the match-running performance in elite soccer matches.Methods: Match performance data were collected from players in Spanish LaLiga (8,468 individual match observations of 412 outfield players) using a multiple-camera computerised tracking system. A k-means cluster analyses classified teams depending on time spent in possession of the ball: very high-percentage ball possession teams (VHPBPT), high-percentage ball possession teams (HPBPT), low-percentage ball possession teams (LPBPT) and very low-percentage ball possession teams (VLPBPT).Results: Overall, physical indicators were highly associated with ball possession. Distances covered in VHPBPT were lower than HPBPT, LPBPT and VLPBPT, especially at low and medium speed. Position-specific changes were also evident for physical profiles. Attackers (central midfielders, external midfielders and forwards) in VHPBPT covered fewer meters per minute at any speed than their counterparts in HPBPT, LPBPT or VLPBPT. However, defenders (Central defenders and External defenders) in VLPBPT covered lower distances.Conclusion: These findings may have a great deal of practical implications and may help coaches to better understand match-running variations according to ball possession strategies and could be used to develop a model for predicting the physical activity profile in competition.
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Affiliation(s)
| | - Anton Kalén
- Faculty of Educacion and Sport Sciences, University of Vigo, Pontevedra, Spain
| | - Ezequiel Rey
- Faculty of Educacion and Sport Sciences, University of Vigo, Pontevedra, Spain
| | | | - Ricardo Resta
- Department of Competitions and Mediacoah, LaLiga, Madrid, Spain
| | - Carlos Lago-Peñas
- Faculty of Educacion and Sport Sciences, University of Vigo, Pontevedra, Spain
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Julian R, Skorski S, Hecksteden A, Pfeifer C, Bradley PS, Schulze E, Meyer T. Menstrual cycle phase and elite female soccer match-play: influence on various physical performance outputs. SCI MED FOOTBALL 2022; 5:97-104. [PMID: 35077332 DOI: 10.1080/24733938.2020.1802057] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
INTRODUCTION The aim of the study was to investigate whether menstrual cycle phases influence the physical performance during soccer match-play. METHODS Fifteen elite female soccer players, with physiologically normal menstrual cycles, competed in matches over a four-month period. Physical performance was assessed via GPS and expressed as meters per minute, and separated into four individualised thresholds (low, high, very high and sprinting). Seventy-six complete individual match observations, 36 from the follicular and 40 from the luteal phase were recorded. The differences in physical match performance parameters between the cycle phases were evaluated using a mixed linear model. RESULTS The results of the current study indicate that very high-intensity running distance was significantly greater during the luteal phase compared to the follicular phase (5.90 ± 2.16 m.min-1 vs. 6.64 ± 2.72 m.min-1; p = 0.02). However, this finding was accompanied by large variations across matches (CV = 39.5%). CONCLUSIONS Overall, the results suggest that the menstrual cycle phase does not influence match physical performance of female soccer players to a significant degree. Therefore, at present, interventions or other methods of coping with menstrual cycle phase do not seem necessary on a group/team level to maximise competitive physical performance.
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Affiliation(s)
- Ross Julian
- Institute of Sport and Preventive Medicine, Saarland University, Saarbrücken, Germany
| | - Sabrina Skorski
- Institute of Sport and Preventive Medicine, Saarland University, Saarbrücken, Germany
| | - Anne Hecksteden
- Institute of Sport and Preventive Medicine, Saarland University, Saarbrücken, Germany
| | - Christina Pfeifer
- Institute of Sport and Preventive Medicine, Saarland University, Saarbrücken, Germany
| | - Paul S Bradley
- Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, UK
| | - Emiel Schulze
- Institute of Sport and Preventive Medicine, Saarland University, Saarbrücken, Germany
| | - Tim Meyer
- Institute of Sport and Preventive Medicine, Saarland University, Saarbrücken, Germany
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Rampinini E, Martin M, Bosio A, Donghi F, Carlomagno D, Riggio M, Coutts AJ. Impact of COVID-19 lockdown on professional soccer players' match physical activities. SCI MED FOOTBALL 2022; 5:44-52. [PMID: 35077319 DOI: 10.1080/24733938.2021.1995033] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
AIM The COVID-19 pandemic forced the 2019-20 Italian Serie A competition to stop and players went into lockdown. During lockdown, players only trained at home, likely having a detrimental effect on players' physical fitness and capacity. This study investigated the effect of the COVID-19 lockdown on professional soccer players' match physical activities. METHODS Match activities of 265 male professional soccer players were assessed in two periods prior to (PRE1 and PRE2) and one period following the lockdown (POST) using a video tracking system. Linear mixed models were used to examine differences between-periods in total (TD), very high-speed (VHS), sprint (SPR), high-acceleration (ACC) and high-deceleration (DEC) distances, considering full match data and data from six 15-min intervals. RESULTS TD and VHS during POST were lower than the two other competitive periods (p < 0.001, d small-moderate). SPR did not show differences between periods (p > 0.636). ACC and DEC during POST were lower than PRE2 (p < 0.015, d small). Declines in most 15-min intervals after lockdown were observed in TD and VHS. CONCLUSIONS There were small differences in the temporal distribution of SPR, ACC and DEC at POST. After the COVID-19 lockdown, soccer players' higher-intensity running activities were similar to those of games played before the lockdown, but TD and VHS decreased, both considering the entire match and 15-min intervals. The temporal distribution of running activities was mostly stable throughout the season.
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Affiliation(s)
- Ermanno Rampinini
- Human Performance Laboratory, MAPEI Sport Research Centre, Varese, Italy
| | - Marco Martin
- Human Performance Laboratory, MAPEI Sport Research Centre, Varese, Italy.,School of Sport, Health and Exercise Sciences, College of Human Sciences, Bangor University, Bangor, Wales, UK
| | - Andrea Bosio
- Human Performance Laboratory, MAPEI Sport Research Centre, Varese, Italy
| | - Federico Donghi
- Human Performance Laboratory, MAPEI Sport Research Centre, Varese, Italy
| | | | | | - Aaron J Coutts
- School of Sport, Exercise and Rehabilitation, Human Performance Research Centre, Faculty of Health, University of Technology Sydney (Uts), New South Wales, Australia
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Torres-Ronda L, Beanland E, Whitehead S, Sweeting A, Clubb J. Tracking Systems in Team Sports: A Narrative Review of Applications of the Data and Sport Specific Analysis. SPORTS MEDICINE - OPEN 2022; 8:15. [PMID: 35076796 PMCID: PMC8789973 DOI: 10.1186/s40798-022-00408-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 01/02/2022] [Indexed: 01/26/2023]
Abstract
Seeking to obtain a competitive advantage and manage the risk of injury, team sport organisations are investing in tracking systems that can quantify training and competition characteristics. It is expected that such information can support objective decision-making for the prescription and manipulation of training load. This narrative review aims to summarise, and critically evaluate, different tracking systems and their use within team sports. The selection of systems should be dependent upon the context of the sport and needs careful consideration by practitioners. The selection of metrics requires a critical process to be able to describe, plan, monitor and evaluate training and competition characteristics of each sport. An emerging consideration for tracking systems data is the selection of suitable time analysis, such as temporal durations, peak demands or time series segmentation, whose best use depends on the temporal characteristics of the sport. Finally, examples of characteristics and the application of tracking data across seven popular team sports are presented. Practitioners working in specific team sports are advised to follow a critical thinking process, with a healthy dose of scepticism and awareness of appropriate theoretical frameworks, where possible, when creating new or selecting an existing metric to profile team sport athletes.
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Affiliation(s)
- Lorena Torres-Ronda
- Institute for Health and Sport, Victoria University, Melbourne, Australia.
- Spanish Basketball Federation, Madrid, Spain.
| | | | - Sarah Whitehead
- Carnegie School of Sport, Leeds Beckett University, Leeds, UK
- Leeds Rhinos Netball, Leeds, UK
| | - Alice Sweeting
- Institute for Health and Sport, Victoria University, Melbourne, Australia
| | - Jo Clubb
- School of Sport, Exercise and Rehabilitation, University of Technology Sydney, Sydney, Australia
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González-García J, Giráldez-Costas V, Ramirez-Campillo R, Drust B, Romero-Moraleda B. Assessment of Peak Physical Demands in Elite Women Soccer Players: Can Contextual Variables Play a Role? RESEARCH QUARTERLY FOR EXERCISE AND SPORT 2022:1-9. [PMID: 35025719 DOI: 10.1080/02701367.2021.2004297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 11/03/2021] [Indexed: 06/14/2023]
Abstract
Aim: To describe and compare the peak physical demands through the worst-case scenario method (WCS), according to different rolling average (RA) time epochs (i.e. 1 min, 3 min, and 5 min) and contextual variables in women soccer players. Methods: Using an observational-comparative study design, an elite women soccer team from the Spanish 1st league division was monitored during 27 matches. Nine WCS-dependent variables were assessed, including total distance (TD), high-speed running distance (HSR), sprint distance (SP), acceleration, and deceleration distance at different intensities by players position (i.e., central defenders [CD], wide defenders [WD], central midfielders [CM], wide midfielders [WM], forwards [F]), match half, location, and match outcome. Results: The 1-min RA showed the lowest variability (CV = 9.8-65.8%) for all nine dependent variables. The WD presented the highest TD (168 ± 15.71 m/min). Differences between positions were observed for: CM<F (-10.19 m/min), CM<WM (-11.20 m/min), and CM<WD (-12.70 m/min). For SP: CM<F (-10.03 m/min), CM<WM (-11.91 m/min), CM<WD (-10.03 m/min), and CM<CD (-5.31 m/min). The WCS-dependent variables were also affected by match half and match outcome. Conclusions: 1-min RA time epochs allow greater accuracy and reliability to identify nine key WCS outcomes in elite women soccer players. Different contextual variables, particularly player's position, influenced the peak periods.
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Lorenzo-Martínez M, Padrón-Cabo A, Rey E, Memmert D. Analysis of Physical and Technical Performance of Substitute Players in Professional Soccer. RESEARCH QUARTERLY FOR EXERCISE AND SPORT 2021; 92:599-606. [PMID: 32603634 DOI: 10.1080/02701367.2020.1755414] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 04/09/2020] [Indexed: 06/11/2023]
Abstract
Current soccer scientific literature is scarce with regard to examining the technical performance of substitute players. Purpose: This study aimed to analyze the physical and technical performance of substitute players versus those who completed the entire match or were replaced and also examine the performance of substitutes across different playing positions. Method: The sample was composed of 6,631 match observations from 431 professional soccer players competing in the German Bundesliga during the season 2018-2019. These observations were divided into three groups: entire match (n = 3,807), replaced (n = 1,412), and substitutes (n = 1,412). Linear mixed models were adjusted to compare the performance of the three groups independently of playing position and separately for each position (central defenders, fullbacks, central midfielders, wide midfielders, and attackers). Results: Substitute players showed higher total distance covered (effect sizes [ES]: 0.99-1.06), number of sprints (ES: 0.60-0.64), and number of fast runs (ES: 0.83-0.91) relative to playing time than replaced and entire match players. The differences in technical performance between groups varied according to playing position. Substitute central defenders showed less possession (ES: 0.39-0.41), touches (ES: 0.47-0.57), and passes (ES: 0.54-0.59) but higher defensive performance (ES: 0.51-0.54) than replaced and entire match players. Substitutes in midfield and attack positions displayed more possession (ES: 0.22-0.47), touches (ES: 0.27-0.37), and shots (ES: 0.22-0.28) than replaced and entire match players. Conclusion: This study has shown that substitutes are able to improve the performance of the players who completed the entire match or were replaced in both physical and some technical variables depending on playing position.
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Winther AK, Baptista I, Pedersen S, Randers MB, Johansen D, Krustrup P, Pettersen SA. Position specific physical performance and running intensity fluctuations in elite women's football. Scand J Med Sci Sports 2021; 32 Suppl 1:105-114. [PMID: 34825736 DOI: 10.1111/sms.14105] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Revised: 11/09/2021] [Accepted: 11/17/2021] [Indexed: 11/26/2022]
Abstract
The purpose of the present study was to investigate the physical performance of elite female football players during match play along with transient alterations in running performance following 1- and 5-min univariate peak periods. 54 elite female players from four top-level Norwegian teams were monitored for one season (n = 393 match observations), and physical performance data collected using STATSport GPS APEX. Results revealed significant differences in physical performance between the positions during full match play, particularly between wide and central players. Both full backs (FBs) and wide midfielders (WMs) covered more total distance (TD), high-speed running distance (HSRD), and sprint distance (SpD) than center backs (CBs) (p < 0.05-0.001), while WMs also covered more HSRD than both central midfielders (CMs) (p < 0.01) and forwards (FWs) (p < 0.05), and more acceleration -and deceleration distance (Accdist and Decdist ) than both CBs and CMs (p < 0.01-0.001). A similar pattern was observed for the peak period analysis, with FBs and WMs covering more SpD in peak 1 min than CBs and CM (p < 0.001) and more SpD in peak 5-min than CBs, CMs, and FWs (p < 0.001). Irrespective of the variable analyzed, greater distances were covered during the peak 5-min period than in the next-5 and mean 5-min periods (p < 0.001). Significant (p < 0.001), but small to trivial (Cohen's Dz : 0.07-0.20), decreases in distance covered were also observed for each variable following each univariate peak 5-min period. In conclusion, practitioners should account for differences in physical performance when developing training programs for female football players and be aware of transient reductions in physical performance following univariate peak 1- and 5-min periods. Specifically, the very high intensity in 1-min peak periods adds support to the principal of executing speed endurance activities during training to mirror and be prepared for the physical demands of match play.
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Affiliation(s)
- A K Winther
- School of Sport Sciences, Faculty of Health Sciences, UiT The Arctic University of Norway, Tromsø, Norway
| | - I Baptista
- Faculty of Sport, University of Porto, Porto, Portugal.,Department of Computer Science, Faculty of Science and Technology, UiT The Arctic University of Norway, Tromsø, Norway
| | - S Pedersen
- School of Sport Sciences, Faculty of Health Sciences, UiT The Arctic University of Norway, Tromsø, Norway
| | - M B Randers
- School of Sport Sciences, Faculty of Health Sciences, UiT The Arctic University of Norway, Tromsø, Norway.,Department of Sports Science and Clinical Biomechanics, SDU Sport and Health Sciences Cluster (SHSC), University of Southern Denmark, Odense, Denmark
| | - D Johansen
- Department of Computer Science, Faculty of Science and Technology, UiT The Arctic University of Norway, Tromsø, Norway
| | - P Krustrup
- Department of Sports Science and Clinical Biomechanics, SDU Sport and Health Sciences Cluster (SHSC), University of Southern Denmark, Odense, Denmark.,Shangai University of Sport, Shanghai, China.,Sport and Health Sciences, University of Exeter, Exeter, UK.,Danish Institute for Advanced Study (DIAS), University of Southern Denmark, Odense, Denmark
| | - S A Pettersen
- School of Sport Sciences, Faculty of Health Sciences, UiT The Arctic University of Norway, Tromsø, Norway
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The Effects of Successive Soccer Matches on the Internal Match Load, Stress Tolerance, Salivary Cortisol and Jumping Performance in Youth Soccer Players. J Hum Kinet 2021; 80:173-184. [PMID: 34868427 PMCID: PMC8607784 DOI: 10.2478/hukin-2021-0092] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The study aim was to analyze the effects of successive matches on the internal match load, stress tolerance, salivary cortisol concentration and countermovement vertical jump height in twelve youth soccer players (16.6 ± 0.5 yr; 175 ± 8 cm; 65 ± 8 kg) who performed four official matches within a four day-period with a 24-h recovery interval between the matches. The internal match load, monotony index and competitive strain, as well as stress tolerance were examined. Saliva samples were collected and countermovement vertical jump height was assessed 60 min pre and 30 min post each match; delta of salivary cortisol and countermovement vertical jump height for each match were analyzed. Salivary cortisol was analyzed using an enzyme-linked immunosorbent assay. The results of ANOVA with repeated measures showed no differences between matches for the internal match load (p > 0.05). The scores of the monotony index and competitive strain were 4.3 (±2.3) and 8104 (±6795) arbitrary units, respectively. There was no difference for stress tolerance between matches (p > 0.05). Delta values of salivary cortisol were not different among the assessed matches (F(3,33) = 1.397, p = 0.351, η2: 0.09); however, delta of countermovement vertical jump height decreased from match 1 to match 4 (F(3,33) = 8.64, p < 0.001, η2: 0.44). The current findings suggest that participating in four successive matches, with 24-h of recovery in between, may not lead to changes in stress tolerance and salivary cortisol of youth players, but it may induce a decrease in players' jumping performance after the fourth match.
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Egan B, Young D, Collins K, Malone S, Coratella G. The Between-Competition Running Demands of Elite Hurling Match-Play. Sports (Basel) 2021; 9:sports9110145. [PMID: 34822345 PMCID: PMC8621312 DOI: 10.3390/sports9110145] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 10/12/2021] [Accepted: 10/19/2021] [Indexed: 12/02/2022] Open
Abstract
The current study aimed to investigate the differences in running demands between the National Hurling League (NHL) and the Championship, and within playing positions. GPS (10 Hz, STATSports Apex GNSS) were used to analyse the running demands during 34 games (2017–2020 seasons) of the Championship and the NHL. The running demands (total-, relative-, high-speed- [>17 km·h−1] and sprint [≥22 km·h−1] distance, number and length of sprints, and peak speed) were compared between competitions. Greater total- [ES = 0.32], relative- [ES = 0.26], and sprint-distance [ES = 0.41], and number of sprints [ES = 1.29] were completed in the Championship. The high-speed distance was similar between competitions. Half-backs and half-forwards covered greater total- (ES = 0.91 and 0.21, respectively), relative- (ES = 1.14 and 0.68, respectively), high-speed- (ES = 0.69 and 0.44, respectively), and sprint-distance (ES = 0.50 and 1.26, respectively), number of sprints (ES = 2.66 and 1.73, respectively), and peak speed (ES = 1.09 and 1.32, respectively) in the Championship. There was no difference (p < 0.05) in the sprint distance covered between positions in the Championship. The results showed that the Championship is more physically demanding. The findings present key implications for the transition between competitions.
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Affiliation(s)
- Brendan Egan
- Department of Sport and Early Childhood Studies, Technological University of the Shannon: Midlands Midwest, Thurles Campus, Thurles, E41 PC92 Tipperary, Ireland;
| | - Damien Young
- Department of Sport and Early Childhood Studies, Technological University of the Shannon: Midlands Midwest, Thurles Campus, Thurles, E41 PC92 Tipperary, Ireland;
- Correspondence: ; Tel.: +353-87-925-3360
| | - Kieran Collins
- Department of Science, Gaelic Sport Research Centre, Technological University Dublin, Tallaght, D24 FKT9 Dublin, Ireland; (K.C.); (S.M.)
- Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool L3 3AF, UK
| | - Shane Malone
- Department of Science, Gaelic Sport Research Centre, Technological University Dublin, Tallaght, D24 FKT9 Dublin, Ireland; (K.C.); (S.M.)
- Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool L3 3AF, UK
| | - Giuseppe Coratella
- Department of Biomedical Sciences for Health, University of Milan, 20133 Milan, Italy;
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