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This case study explored how spatiotemporal data can develop key metrics to evaluate and understand elite soccer referees’ performance during one elite soccer match. The dynamic position of players from both teams, the ball and three elite referees allowed to capture the following performance metrics: (i) assistant referees: alignment with the second last defender; (ii) referee: referee diagonal movement—a position density was computed and a principal component analysis was carried to identify the directions of greatest variability; and (iii) referee: assessing the distance from the referee to the ball. All computations were processed when the ball was in-play and separated by 1st and 2nd halves. The first metric showed an alignment lower than 1 m between the assistant referee and the second last defender. The second metric showed that in the 1st half, the referee position ellipsis area was 548 m2, which increased during the 2nd half (671 m2). The third metric showed an increase in the distance from the referee to the ball and >80% of the distance between 5–30 m during the 2nd half. The findings may be used as a starting point to elaborate normative behavior models from the referee’s movement performance in soccer.
Bruno Gonçalves; Diogo Coutinho; Bruno Travassos; João Brito; Pedro Figueiredo. Match Analysis of Soccer Refereeing Using Spatiotemporal Data: A Case Study. Sensors 2021, 21, 2541 .
AMA StyleBruno Gonçalves, Diogo Coutinho, Bruno Travassos, João Brito, Pedro Figueiredo. Match Analysis of Soccer Refereeing Using Spatiotemporal Data: A Case Study. Sensors. 2021; 21 (7):2541.
Chicago/Turabian StyleBruno Gonçalves; Diogo Coutinho; Bruno Travassos; João Brito; Pedro Figueiredo. 2021. "Match Analysis of Soccer Refereeing Using Spatiotemporal Data: A Case Study." Sensors 21, no. 7: 2541.
Pedro Brito; Júlio Costa; João Brito; Pedro Figueiredo. Simulated Soccer Games Protocols: What we Know so far—A Systematic Review. Simulated Soccer Games Protocols: What we Know so far—A Systematic Review 2021, 1 .
AMA StylePedro Brito, Júlio Costa, João Brito, Pedro Figueiredo. Simulated Soccer Games Protocols: What we Know so far—A Systematic Review. Simulated Soccer Games Protocols: What we Know so far—A Systematic Review. 2021; ():1.
Chicago/Turabian StylePedro Brito; Júlio Costa; João Brito; Pedro Figueiredo. 2021. "Simulated Soccer Games Protocols: What we Know so far—A Systematic Review." Simulated Soccer Games Protocols: What we Know so far—A Systematic Review , no. : 1.
This study aimed to describe habitual sleep and nocturnal cardiac autonomic activity (CAA), and their relationship with training/match load in male youth soccer players during an international tournament. Eighteen elite male youth soccer players (aged 14.8 ± 0.3 years; mean ± SD) participated in the study. Sleep indices were measured using wrist actigraphy, and heart rate (HR) monitors were used to measure CAA during night-sleep throughout 5 consecutive days. Training and match loads were characterized using the session-rating of perceived exertion (s-RPE). During the five nights 8 to 17 players slept less than p = 0.003]. The present findings suggest that youth soccer players slept less than the recommended during the international tournament, and sleep duration was negatively associated with training/match load.
Pedro Figueiredo; Júlio Costa; Michele Lastella; João Morais; João Brito. Sleep Indices and Cardiac Autonomic Activity Responses during an International Tournament in a Youth National Soccer Team. International Journal of Environmental Research and Public Health 2021, 18, 2076 .
AMA StylePedro Figueiredo, Júlio Costa, Michele Lastella, João Morais, João Brito. Sleep Indices and Cardiac Autonomic Activity Responses during an International Tournament in a Youth National Soccer Team. International Journal of Environmental Research and Public Health. 2021; 18 (4):2076.
Chicago/Turabian StylePedro Figueiredo; Júlio Costa; Michele Lastella; João Morais; João Brito. 2021. "Sleep Indices and Cardiac Autonomic Activity Responses during an International Tournament in a Youth National Soccer Team." International Journal of Environmental Research and Public Health 18, no. 4: 2076.
During the COVID-19 pandemic, the temporary closure of physical activity and sports facilities, and the generalized cancellation or postponement of sports events have a massive impact on social and economic development. In this study, we explored the feasibility of using tracking data from a football match to assess interpersonal contact between individuals by calculating two measures of respiratory exposure. The dynamic tracking positioning of all players and referees during one international football match was analyzed. For each individual, two measures of respiratory exposure were calculated, based on the 2 m interpersonal distance recommendations for contact tracing for COVID-19 control. Overall, individuals spent a median of 0.12 mm/ss (IQR = 0.45 mm/ss) exposed to interpersonal contact of fewer than 2 m from others. The highest value of exposure was observed between two players of opposing teams (6.35 mm/ss). The results suggest that tracking data can be used to assess respiratory exposure to interpersonal contact in team sports, such as football. The measures of exposure calculated can be used to the prompt identification of high-risk contacts of COVID-19 cases during a match or a training session, but also the risk stratification of different sports and physical activities.
Bruno Gonçalves; Romeu Mendes; Hugo Folgado; Pedro Figueiredo; Bruno Travassos; Henrique Barros; Adalberto Campos-Fernandes; Paulo Beckert; João Brito. Can Tracking Data Help in Assessing Interpersonal Contact Exposure in Team Sports during the COVID-19 Pandemic? Sensors 2020, 20, 6163 .
AMA StyleBruno Gonçalves, Romeu Mendes, Hugo Folgado, Pedro Figueiredo, Bruno Travassos, Henrique Barros, Adalberto Campos-Fernandes, Paulo Beckert, João Brito. Can Tracking Data Help in Assessing Interpersonal Contact Exposure in Team Sports during the COVID-19 Pandemic? Sensors. 2020; 20 (21):6163.
Chicago/Turabian StyleBruno Gonçalves; Romeu Mendes; Hugo Folgado; Pedro Figueiredo; Bruno Travassos; Henrique Barros; Adalberto Campos-Fernandes; Paulo Beckert; João Brito. 2020. "Can Tracking Data Help in Assessing Interpersonal Contact Exposure in Team Sports during the COVID-19 Pandemic?" Sensors 20, no. 21: 6163.
Where not too long ago we serviced athletes; nowadays, we have the responsibility to lead a multidisciplinary team that is mandated to protect the athletes’ health, ensure competition availability and ability to compete at peak performance. In essence, our roles have shifted from being a service provider to a health and performance manager who steers a multidisciplinary team of specialists. In this viewpoint, we question whether we really have the skills to lead a ‘team’ like this effectively. We provide a potential definition of leadership and discuss the importance of leadership for health and performance teams with recent literature. Finally, we share our baseline ‘leadership’ pearls that allow you to elevate collaboration through leadership.
Evert Verhagen; Jay Mellette; Jeff Konin; Reggie Scott; João Brito; Alan McCall. Taking the lead towards healthy performance: the requirement of leadership to elevate the health and performance teams in elite sports. BMJ Open Sport & Exercise Medicine 2020, 6, e000834 .
AMA StyleEvert Verhagen, Jay Mellette, Jeff Konin, Reggie Scott, João Brito, Alan McCall. Taking the lead towards healthy performance: the requirement of leadership to elevate the health and performance teams in elite sports. BMJ Open Sport & Exercise Medicine. 2020; 6 (1):e000834.
Chicago/Turabian StyleEvert Verhagen; Jay Mellette; Jeff Konin; Reggie Scott; João Brito; Alan McCall. 2020. "Taking the lead towards healthy performance: the requirement of leadership to elevate the health and performance teams in elite sports." BMJ Open Sport & Exercise Medicine 6, no. 1: e000834.
The ecological dynamics approach to interpersonal relationships provides theoretical support to the use of kinematic data, obtained with sensor-based systems, in which players of a team are linked mainly by information from the performance environment. Our goal was to capture the properties of synergic behavior in football, using spatiotemporal data from one match of the 2018 FIFA WORLD CUP RUSSIA, to explore the application of player-ball-goal angles in cluster phase analysis. Linear mixed effects models were used to test the statistical significance of different effects, such as: team, half(-time), role and pitch zones. Results showed that the cluster phase values (synchronization) for the home team, had a 3.812×10−2±0.536×10−2 increase with respect to the away team (X2(41)=259.8, p<0.001) and that changing the role from with ball to without ball increased synchronization by 16.715×10−2±0.283×10−2 (X2(41)=12227.0, p<0.001). The interaction between effects was also significant. The player-team relative phase, the player-ball-goal angles relative frequency and the team configurations, showed that variations of synchronization might indicate critical performance changes (ball possession changes, goals scored, etc.). This study captured the ongoing player-environment link and the properties of team synergic behavior, supporting the use of sensor-based data computations in the development of relevant indicators for tactical analysis in sports.
Daniel Carrilho; Micael Santos Couceiro; João Brito; Pedro Figueiredo; Rui J. Lopes; Duarte Araújo. Using Optical Tracking System Data to Measure Team Synergic Behavior: Synchronization of Player-Ball-Goal Angles in a Football Match. Sensors 2020, 20, 4990 .
AMA StyleDaniel Carrilho, Micael Santos Couceiro, João Brito, Pedro Figueiredo, Rui J. Lopes, Duarte Araújo. Using Optical Tracking System Data to Measure Team Synergic Behavior: Synchronization of Player-Ball-Goal Angles in a Football Match. Sensors. 2020; 20 (17):4990.
Chicago/Turabian StyleDaniel Carrilho; Micael Santos Couceiro; João Brito; Pedro Figueiredo; Rui J. Lopes; Duarte Araújo. 2020. "Using Optical Tracking System Data to Measure Team Synergic Behavior: Synchronization of Player-Ball-Goal Angles in a Football Match." Sensors 20, no. 17: 4990.
We examined the effects of a 6-month school-based soccer programme on cardiovascular (CV) and metabolic risk factors in overweight children. Methods: 40 boys [8–12 years; body mass index (BMI) >2 standard deviations of WHO reference values] participated in complementary school-based physical education classes (two sessions per week, 45–90 min each). The participants were divided into a soccer group (SG; n = 20) and a control group (CG; n = 20). The SG intervention involved 3 extra-curricular school-based soccer sessions per week, 60–90 min each. The intervention lasted for 6-months. All measurements were taken at baseline and after 6-months. From baseline to 6-months, the SG significantly improved (p < .05) BMI z-score, waist circumference, waist-to-height ratio, percentage of fat mass, percentage of fat-free mass, diastolic blood pressure, total cholesterol, triglycerides, low-density lipoprotein cholesterol (LDL-C) and high-density lipoprotein cholesterol, but no such improvements were observed for the CG. After the intervention, the prevalence of soccer participants with normal waist-to-height ratio (30 vs. 5%; p = .037), systolic blood pressure (90 vs. 55%; p = .039), total cholesterol (80 vs. 65%; p = .035) and LDL-C (90 vs. 75%; p = .012) were significantly higher than at baseline. The findings suggest that a 6-month school-based soccer intervention program represents an effective strategy to reduce CV and metabolic risk factors in overweight children prepared to take part in a soccer program.
André Seabra; João Brito; Pedro Figueiredo; Liliana Beirão; Ana Seabra; Maria José Carvalho; Sandra Abreu; Susana Vale; Augusto Pedretti; Henrique Nascimento; Luís Belo; Carla Rêgo. School-based soccer practice is an effective strategy to improve cardiovascular and metabolic risk factors in overweight children. Progress in Cardiovascular Diseases 2020, 63, 1 .
AMA StyleAndré Seabra, João Brito, Pedro Figueiredo, Liliana Beirão, Ana Seabra, Maria José Carvalho, Sandra Abreu, Susana Vale, Augusto Pedretti, Henrique Nascimento, Luís Belo, Carla Rêgo. School-based soccer practice is an effective strategy to improve cardiovascular and metabolic risk factors in overweight children. Progress in Cardiovascular Diseases. 2020; 63 (6):1.
Chicago/Turabian StyleAndré Seabra; João Brito; Pedro Figueiredo; Liliana Beirão; Ana Seabra; Maria José Carvalho; Sandra Abreu; Susana Vale; Augusto Pedretti; Henrique Nascimento; Luís Belo; Carla Rêgo. 2020. "School-based soccer practice is an effective strategy to improve cardiovascular and metabolic risk factors in overweight children." Progress in Cardiovascular Diseases 63, no. 6: 1.
Understanding the physical demands of futsal requires a precise quantification of the players’ activities during match play. This study aimed to (1) describe external load, identifying the differences between the first and second halves in official futsal matches; (2) identify the most important external workload metrics to profile the players; and (3) identify the collinearity between variables in the analysis of physical performance of futsal players. Match external load data were collected from male players (n = 28) in six games of the Final Eight of the Portuguese Futsal Cup 2018. The players increased the distance covered per minute at 12–18 km/h in the second half (p < 0.01). Dynamic stress load also increased in the second half (p = 0.01). The variables that best predicted the physical profile of each player were decelerations (predictor importance, PI = 1), walking (PI = 1), sprinting (PI = 1), jogging (PI = 0.997), total distance covered per minute (PI = 0.992), and metabolic power (PI = 0.989). Decelerations showed the highest association with the clusters levels (p < 0.001; PI = 1); this suggests decelerations as a potential candidate for best analyzing the physical load of futsal players. Overall, the data from this exploratory study suggest that distance covered per minute (m/min), number of sprints (>18 km/h), decelerations (greater than-2 m/s), and metabolic power (W/kg) are the variables that most discriminate the load intensity of elite futsal players.
João Nuno Ribeiro; Bruno Gonçalves; Diogo Coutinho; João Brito; Jaime Sampaio; Bruno Travassos. Activity Profile and Physical Performance of Match Play in Elite Futsal Players. Frontiers in Psychology 2020, 11, 1709 .
AMA StyleJoão Nuno Ribeiro, Bruno Gonçalves, Diogo Coutinho, João Brito, Jaime Sampaio, Bruno Travassos. Activity Profile and Physical Performance of Match Play in Elite Futsal Players. Frontiers in Psychology. 2020; 11 ():1709.
Chicago/Turabian StyleJoão Nuno Ribeiro; Bruno Gonçalves; Diogo Coutinho; João Brito; Jaime Sampaio; Bruno Travassos. 2020. "Activity Profile and Physical Performance of Match Play in Elite Futsal Players." Frontiers in Psychology 11, no. : 1709.
This study aimed to analyze the feasibility and safety of a community-based walking football program in middle-aged and older men with type 2 diabetes (T2D). Thirty-one male (age, 64.4 ± 4.5 years old; glycated hemoglobin, 6.7 ± 1.0%; body mass index: 28.8 ± 3.3 kg/m2) patients with T2D were recruited from primary health care units in Porto, Portugal. The participants engaged in a 12-wk walking football program (three sessions per week of 60 min; consisting of strength and conditioning exercises, technical skills drills, and small-sided walking football games). Exercise intensity was planned to be gradual throughout the program in three 4-wk phases (phase I, light-intensity; phase II, moderate-intensity; phase III, vigorous-intensity) through the manipulation of game constraints, and monitored by OMNI scale and heart rate reserve (HRR). Sessions' enjoyment level, and exercise-related injuries and adverse events were recorded in all sessions. The median (P25–P75) adherence to the program was 86.1% (77.8–97.2%). The median enjoyment levels reported by participants was 5 (4–5) points in phase I, 5 (5–5) points in phase II and 5 (5–5) points in phase III. Sessions' average subjective exercise intensity was 3.0 ± 0.6 points in OMNI scale in phase I, 3.5 ± 0.4 points in phase II, and 3.8 ± 0.4 points in phase III. Sessions' average HRR was 35.8 ± 6.7% in phase I, 41.6 ± 4.2% in phase II, and 37.3 ± 4.3% in phase III. Most participants attained vigorous-intensity peaks in all phases. Falls (n = 25) and musculoskeletal injuries (n = 8) were the most frequent adverse events. 31% of these events interfered with exercise participation, but no harm has resulted from it. A community-based walking football program for T2D patients revealed high levels of adherence and enjoyment, and light-to-vigorous exercise intensity. The adverse events were according to the expected for the population and activity. Therefore, walking football seems to be feasible and safe exercise strategy, and therefore has the potential for large scale implementation for T2D control. NCT03810846.
Ana Barbosa; João Brito; Júlio Costa; Pedro Figueiredo; André Seabra; Romeu Mendes. Feasibility and safety of a walking football program in middle-aged and older men with type 2 diabetes. Progress in Cardiovascular Diseases 2020, 63, 786 -791.
AMA StyleAna Barbosa, João Brito, Júlio Costa, Pedro Figueiredo, André Seabra, Romeu Mendes. Feasibility and safety of a walking football program in middle-aged and older men with type 2 diabetes. Progress in Cardiovascular Diseases. 2020; 63 (6):786-791.
Chicago/Turabian StyleAna Barbosa; João Brito; Júlio Costa; Pedro Figueiredo; André Seabra; Romeu Mendes. 2020. "Feasibility and safety of a walking football program in middle-aged and older men with type 2 diabetes." Progress in Cardiovascular Diseases 63, no. 6: 786-791.
This work aimed to summarize the health effects of recreational football practice in individuals with prediabetes and type 2 diabetes (T2D), through a systematic review. An electronic search was performed in PubMed, Scopus, Web of Science, LILACS and list of references of the available reviews, until July 2019. Studies were eligible if they included any form of football practice, in patients diagnosed with prediabetes or T2D. After recreational football practice, participants with prediabetes or T2D improved fasting glucose, total and LDL cholesterol, triglycerides, body mass, body fat percentage, waist circumference, blood pressure, and maximal oxygen uptake. Further benefits were found in fat-free mass and resting heart rate for participants with prediabetes, and in glycated haemoglobin, body mass index and fat mass in individuals with T2D. This systematic review showed promising benefits of recreational football practice on both the prevention and control of T2D and related cardiovascular risk.
Ana Barbosa; João Brito; Pedro Figueiredo; André Seabra; Romeu Mendes. Football can tackle type 2 diabetes: a systematic review of the health effects of recreational football practice in individuals with prediabetes and type 2 diabetes. Research in Sports Medicine 2020, 1 -19.
AMA StyleAna Barbosa, João Brito, Pedro Figueiredo, André Seabra, Romeu Mendes. Football can tackle type 2 diabetes: a systematic review of the health effects of recreational football practice in individuals with prediabetes and type 2 diabetes. Research in Sports Medicine. 2020; ():1-19.
Chicago/Turabian StyleAna Barbosa; João Brito; Pedro Figueiredo; André Seabra; Romeu Mendes. 2020. "Football can tackle type 2 diabetes: a systematic review of the health effects of recreational football practice in individuals with prediabetes and type 2 diabetes." Research in Sports Medicine , no. : 1-19.
George P. Nassis; Andrew Massey; Philipp Jacobsen; João Brito; Morten Bredsgaard Randers; Carlo Castagna; Magni Mohr; Peter Krustrup. Elite football of 2030 will not be the same as that of 2020: Preparing players, coaches, and support staff for the evolution. Scandinavian Journal of Medicine & Science in Sports 2020, 30, 962 -964.
AMA StyleGeorge P. Nassis, Andrew Massey, Philipp Jacobsen, João Brito, Morten Bredsgaard Randers, Carlo Castagna, Magni Mohr, Peter Krustrup. Elite football of 2030 will not be the same as that of 2020: Preparing players, coaches, and support staff for the evolution. Scandinavian Journal of Medicine & Science in Sports. 2020; 30 (6):962-964.
Chicago/Turabian StyleGeorge P. Nassis; Andrew Massey; Philipp Jacobsen; João Brito; Morten Bredsgaard Randers; Carlo Castagna; Magni Mohr; Peter Krustrup. 2020. "Elite football of 2030 will not be the same as that of 2020: Preparing players, coaches, and support staff for the evolution." Scandinavian Journal of Medicine & Science in Sports 30, no. 6: 962-964.
The COVID-19 pandemic has changed the conditions for competitive football around the globe dramatically. Several competitions and leagues have been cancelled or postponed. Players have firstly been forced to training in solitude. In a second stage, players start training in small groups with strict contact restriction and return to competitive play might occur after only few weeks of normal team training preparation. These special circumstances are likely to impact football performance and injury risk in the upcoming competitions. Thus, clubs, coaching and medical staff, as well as players are challenged on the prioritization of fitness and performance, which easily can create several “catch-22-dilemmas”. The present article presents views on fitness training, physical preparation and recovery during these uncommon conditions, and how elite football players can return to the competitive field well-prepared for post-crisis football endeavours around the world. Due to the multifaceted physiological demands in elite football, the long recovery requirements after match-play and an upcoming reality with many games within a short period, elite football players, managers and clubs may face extraordinary challenges associated with return to play under the current circumstances.
Magni Mohr; George P. Nassis; Joao Brito; Morten B. Randers; Carlo Castagna; Dan Parnell; Peter Krustrup. Return to elite football after the COVID-19 lockdown. Managing Sport and Leisure 2020, 1 -9.
AMA StyleMagni Mohr, George P. Nassis, Joao Brito, Morten B. Randers, Carlo Castagna, Dan Parnell, Peter Krustrup. Return to elite football after the COVID-19 lockdown. Managing Sport and Leisure. 2020; ():1-9.
Chicago/Turabian StyleMagni Mohr; George P. Nassis; Joao Brito; Morten B. Randers; Carlo Castagna; Dan Parnell; Peter Krustrup. 2020. "Return to elite football after the COVID-19 lockdown." Managing Sport and Leisure , no. : 1-9.
This study examined the physical and technical demands of the 2010, 2014 and 2018 men’s FIFA World Cup editions with special reference on extra time. 3,238 individual player’ observations were collected from 69 FIFA’s open-access match reports and scaled by individual playing exposure. Time-motion variables showing uniformity among FIFA World Cups reports were considered. Players covered less total distance (TD) from the 1st half to the extra time period (r=0.17–0.27; P<0.05). Moreover, the number of sprints decreased from the 1st half to the extra time (r=0.13–0.25; P<0.01). However, substitutes who started on or came in on the match throughout the 2nd half covered higher TD in the extra time compared to the 2nd half (r=0.11–0.43; P<0.01), and compared to starters during the 2nd half and extra time (r=0.11–0.36; P<0.05). Additionally, substitutes who started on, or came in throughout the extra time covered higher TD and performed more sprints compared to starters during the extra time (r=0.12–0.23; P0.05). The occurrence of extra time appeared to be detrimental for the work rate during the match, which can be counteracted by substitute players.
Vincenzo Rago; Rodrigo Abreu; Fabrício Vasconcellos; Vitor Hugo Teixeira; António Rebelo; Pedro Figueiredo; João Brito. Physical and technical demands of the extra time: a multiple FIFA World Cups’ analysis. Science and Medicine in Football 2020, 4, 171 -177.
AMA StyleVincenzo Rago, Rodrigo Abreu, Fabrício Vasconcellos, Vitor Hugo Teixeira, António Rebelo, Pedro Figueiredo, João Brito. Physical and technical demands of the extra time: a multiple FIFA World Cups’ analysis. Science and Medicine in Football. 2020; 4 (3):171-177.
Chicago/Turabian StyleVincenzo Rago; Rodrigo Abreu; Fabrício Vasconcellos; Vitor Hugo Teixeira; António Rebelo; Pedro Figueiredo; João Brito. 2020. "Physical and technical demands of the extra time: a multiple FIFA World Cups’ analysis." Science and Medicine in Football 4, no. 3: 171-177.
This study aimed to examine the interchangeability of two external training load (ETL) monitoring methods: arbitrary vs. individualized speed zones. Thirteen male outfield players from a professional soccer team were monitored during training sessions using 10-Hz GPS units over an 8-week competitive period (n = 302 observations). Low-speed activities (LSA), moderate-speed running (MSR), high-speed running (HSR) and sprinting were defined using arbitrary speed zones as <14.4, 14.4–19.8, 19.8–25.1 and ≥25.2 km·h-1, and using individualized speed zones based on a combination of maximal aerobic speed (MAS, derived from the Yo-yo Intermittent recovery test level 1), maximal sprinting speed (MSS, derived from the maximal speed reached during training) and anaerobic speed reserve (ASR) as <80% MAS, 80–100% MAS, 100% MAS or 29% ASR and ≥30% ASR. Distance covered in both arbitrary and individualized methods was almost certainly correlated in all speed zones (p < 0.01; r = 0.67-0.78). However, significant differences between methods were observed in all speed zones (p < 0.01). LSA was almost certainly higher when using the arbitrary method than when using the individualized method (p < 0.01; ES = 5.47 [5.18; 5.76], respectively). Conversely, MSR, HSR and sprinting speed were higher in the individualized method than in the arbitrary method (p < 0.01; ES = 5.10 [4.82; 5.37], 0.86 [0.72; 1.00] and 1.22 [1.08; 1.37], respectively). Arbitrary and individualized methods for ETL quantification based on speed zones showed similar sensitivity in depicting player locomotor demands. However, since these methods significantly differ at absolute level (based on measurement bias), arbitrary and individualized speed zones should not be used interchangeably.
Vincenzo Rago; João Brito; Pedro Figueiredo; Peter Krustrup; António Rebelo. Application of Individualized Speed Zones to Quantify External Training Load in Professional Soccer. Journal of Human Kinetics 2020, 72, 279 -289.
AMA StyleVincenzo Rago, João Brito, Pedro Figueiredo, Peter Krustrup, António Rebelo. Application of Individualized Speed Zones to Quantify External Training Load in Professional Soccer. Journal of Human Kinetics. 2020; 72 (1):279-289.
Chicago/Turabian StyleVincenzo Rago; João Brito; Pedro Figueiredo; Peter Krustrup; António Rebelo. 2020. "Application of Individualized Speed Zones to Quantify External Training Load in Professional Soccer." Journal of Human Kinetics 72, no. 1: 279-289.
Despite the reasonable success of ACL reconstruction, some athletes are not able to regain the level of play they once had. Here, we report the case of a 32-year-old male professional soccer player who sustained an ACL injury in his right knee. The patient had a history of two prior ipsilateral ACL injuries, which was reconstructed with ipsilateral hamstring autograft (first surgery) and ipsilateral patellar tendon autograft (revision surgery). Imaging examination revealed a small narrowing of the medial femoro-tibial compartment, a complete ACL rupture, partial medial meniscectomy, small cartilage lesions in the medial condyle, a 7° varus knee, an enlarged tibial tunnel, and a femoral tunnel positioned high above the intercondylar roof. A one-step re-revision surgery using a fresh-frozen, cadaveric, non-irradiated Achilles tendon allograft was planned. After surgery, physiotherapy was conducted once per day during 4 months. The patient started running at the 6th month, and returned to full training 8 months after surgery. The player returned to full competitive play 9 months after surgery and has been competing for the last 36 months at the highest level of play without any limitation, inflammation, pain, or perception of instability. In professional sports, when re-revision ACL reconstruction is indicated and the patient expects to return to competition, surgery should not be delayed. In these cases, the usefulness of Achilles tendon allograft should be taken into consideration for re-revision ACL reconstruction.
José Carlos Noronha; João Pedro Oliveira; João Brito. Return to play after three ipsilateral anterior cruciate ligament reconstructions in an elite soccer player: A case report. International Journal of Surgery Case Reports 2020, 68, 1 -3.
AMA StyleJosé Carlos Noronha, João Pedro Oliveira, João Brito. Return to play after three ipsilateral anterior cruciate ligament reconstructions in an elite soccer player: A case report. International Journal of Surgery Case Reports. 2020; 68 ():1-3.
Chicago/Turabian StyleJosé Carlos Noronha; João Pedro Oliveira; João Brito. 2020. "Return to play after three ipsilateral anterior cruciate ligament reconstructions in an elite soccer player: A case report." International Journal of Surgery Case Reports 68, no. : 1-3.
The aim of this article was to systematically review the methods adopted to collect and interpret external training load (ETL) using microtechnology incorporating global positioning system (GPS). The main deficiencies identified concerned the non-collection of match ETL, and the non-consideration of potential confounders (e.g. playing position, fitness level, starting status or session content). Also, complementary training (individual/reconditioning) and pre-match warm-up were rarely quantified. To provide a full picture of the training demands, ETL was commonly complemented by internal training load monitoring with the rating of perceived exertion predominantly adopted instead of heart rate recordings. Continuous data collection and interpretation of ETL data in professional football vary widely between observational studies, possibly reflecting the actual procedures adopted in practical settings. Evidence about continuous ETL monitoring in female players, and female as well as male goalkeepers is lacking.
Vincenzo Rago; João Brito; Pedro Figueiredo; Júlio Costa; Daniel Barreira; Peter Krustrup; António Rebelo. Methods to collect and interpret external training load using microtechnology incorporating GPS in professional football: a systematic review. Research in Sports Medicine 2019, 28, 437 -458.
AMA StyleVincenzo Rago, João Brito, Pedro Figueiredo, Júlio Costa, Daniel Barreira, Peter Krustrup, António Rebelo. Methods to collect and interpret external training load using microtechnology incorporating GPS in professional football: a systematic review. Research in Sports Medicine. 2019; 28 (3):437-458.
Chicago/Turabian StyleVincenzo Rago; João Brito; Pedro Figueiredo; Júlio Costa; Daniel Barreira; Peter Krustrup; António Rebelo. 2019. "Methods to collect and interpret external training load using microtechnology incorporating GPS in professional football: a systematic review." Research in Sports Medicine 28, no. 3: 437-458.
The prevalence of conditions associated with insulin resistance, including type 2 diabetes and metabolic syndrome, has increased over the past few decades and constitutes a major public-health problem worldwide. Healthy lifestyle behaviours are among the most promising strategies for reducing complications and premature death related to these conditions. In this context, recreational football training has been reported as an effective tool for mitigating the adverse metabolic and cardiovascular effects related to them. In this chapter, we address why and how to prescribe recreational football as exercise therapy for patients with type 2 diabetes and metabolic syndrome, since implementing the concept of lifestyle behaviours is important in the prevention and management of disease. In the subsequent sections, we review the impact of football on body composition, physical fitness, modulation of cardiovascular risk, dyslipidaemia and carbohydrate tolerance parameters. The later section of this chapter outlines the impact of lifestyle changes, culminating in the preservation of lean body mass, improvements in musculoskeletal function, and prevention and control of type 2 diabetes. Finally, we suggest future directions for football and diabetes research.
Maysa Vieira De Sousa; João Brito; Magni Mohr; George P. Nassis; Jørn Wulff Helge; Svein Arne Pettersen; Thomas Rostgaard Andersen; Peter Krustrup. Football as Medicine against type 2 diabetes and metabolic syndrome. Football as Medicine 2019, 25 -40.
AMA StyleMaysa Vieira De Sousa, João Brito, Magni Mohr, George P. Nassis, Jørn Wulff Helge, Svein Arne Pettersen, Thomas Rostgaard Andersen, Peter Krustrup. Football as Medicine against type 2 diabetes and metabolic syndrome. Football as Medicine. 2019; ():25-40.
Chicago/Turabian StyleMaysa Vieira De Sousa; João Brito; Magni Mohr; George P. Nassis; Jørn Wulff Helge; Svein Arne Pettersen; Thomas Rostgaard Andersen; Peter Krustrup. 2019. "Football as Medicine against type 2 diabetes and metabolic syndrome." Football as Medicine , no. : 25-40.
In recent years, virtual sports or ‘eSports’ have grown exponentially both recreationally and at the professional level. eSports comprise several regulated video games played competitively, using electronic platforms. Some eSports competitions present a structure comparable to traditional sports, and eSports players, even with major skills and mental focus, need preparation and training to thrive. However, little is known about the demands of eSports competitions and continuous training. As the popularity and stakes rise, concerns about the health and emerging risks of eSports participation might arise. Indeed, in the absence of proper descriptive data about the specific characteristics of the eSports population (including factors such as screen time, physical activity, overuse injuries or training environment), effective prevention and care cannot be developed nor provided. Therefore, quality healthcare and prevention strategies are needed. In the current viewpoint, we argue that those involved with Sports Science and Medicine should lead the discussion and reflect on the health effects of eSports participation, providing scientifically-based arguments to better answer to the current eSports professionalism.
Ana Monteiro Pereira; João Brito; Pedro Figueiredo; Evert Verhagen. Virtual sports deserve real sports medical attention. BMJ Open Sport & Exercise Medicine 2019, 5, e000606 .
AMA StyleAna Monteiro Pereira, João Brito, Pedro Figueiredo, Evert Verhagen. Virtual sports deserve real sports medical attention. BMJ Open Sport & Exercise Medicine. 2019; 5 (1):e000606.
Chicago/Turabian StyleAna Monteiro Pereira; João Brito; Pedro Figueiredo; Evert Verhagen. 2019. "Virtual sports deserve real sports medical attention." BMJ Open Sport & Exercise Medicine 5, no. 1: e000606.
Costa, JA, Brito, J, Nakamura, FY, Figueiredo, P, and Rebelo, A. Using the rating of perceived exertion and heart rate to quantify training intensity in female soccer players: validity and utility. J Strength Cond Res XX(X): 000–000, 2019—The aims of this study were as follows: (a) to analyze associations between session rating of perceived exertion (sRPE) and training impulse (TRIMP); (b) to verify whether significantly different ranges of percentage of heart rate peak (%HRpeak) would be reached in each discrete RPE category; and (c) to investigate the amount of time spent >90% of HRpeak and associated intraplayer and interplayer variability during soccer technical training sessions with similar contents and duration. This was a single-group observational study that measured the internal training load during 6 weeks of the competitive period in 17 high-level female soccer players. All training sessions started around 9 PM. and lasted on average 94 ± 5 minutes. During each training session, RPE, sRPE, TRIMP, HRex (%HRpeak), and time spent at >90% of HRpeak were assessed. A very large correlation was found between sRPE and TRIMP (r = 0.78; 95% confidence interval: [0.74–0.82]). Significant differences were observed between %HRpeak associated with each RPE value (i.e., RPE = 2 arbitrary unit [68%; 65–69% of %HRpeak]; RPE 3 [72%; 69–75%]; RPE 4 [79%; 76–82%]; RPE 5 [84; 81–87%]; χ2 = 73.34; df = 3; P 90% of HRpeak (∼8% of training time, ∼7 minutes per session) during training sessions were 73 and 92%, respectively. In conclusion, it was confirmed that sRPE and TRIMP displayed good convergent validity, and different %HRpeak were observed for each discrete RPE. However, because of the high variability in the time >90% of HRpeak, careful monitoring of individual exercises should be performed to ensure the desired training stimulus for each player.
Júlio A. Costa; João Brito; Fábio Y. Nakamura; Pedro Figueiredo; António Rebelo. Using the Rating of Perceived Exertion and Heart Rate to Quantify Training Intensity in Female Soccer Players. Journal of Strength and Conditioning Research 2019, Publish Ah, 1 .
AMA StyleJúlio A. Costa, João Brito, Fábio Y. Nakamura, Pedro Figueiredo, António Rebelo. Using the Rating of Perceived Exertion and Heart Rate to Quantify Training Intensity in Female Soccer Players. Journal of Strength and Conditioning Research. 2019; Publish Ah ():1.
Chicago/Turabian StyleJúlio A. Costa; João Brito; Fábio Y. Nakamura; Pedro Figueiredo; António Rebelo. 2019. "Using the Rating of Perceived Exertion and Heart Rate to Quantify Training Intensity in Female Soccer Players." Journal of Strength and Conditioning Research Publish Ah, no. : 1.
Purpose: To analyze whether exercise training conducted at night disturbs sleep and affects nocturnal cardiac autonomic control in high-level female athletes. Methods: A total of 18 high-level female soccer players (mean [SD] age 20.4 [2.1] y) wore actigraphs and heart-rate (HR) monitors during night sleep throughout night training days (n = 8) and resting days (n = 8), for 3 consecutive weeks. This was a longitudinal study that measured internal training load, sleep, nocturnal cardiac autonomic activity, and well-being ratings prior to training sessions. Results: Training load varied across training days (eg, training impulse range, mean [SD]; effect size, ES [95% confidence interval]: 72.9 [18.8] to 138.4 [29.6] a.u.; F4,62 = 32.331; [.001–.16], large effect; P < .001). However, no differences in subjective well-being ratings were observed, although ES was large. Total sleep time (training days vs resting days: 07:17 [00:47] h vs 07:51 [00:42] h; ES = 0.742 [0.59–0.92], P = .005; moderate effect) and sleep-onset time (00:58 [00:19] h vs 00:44 [00:16] h; ES = 0.802 [0.68–0.94], P = .001; moderate effect) were negatively affected after night training. In addition, small effects were detected for wake-up time, time in bed, and sleep latency (P > .05). No differences were detected in HR variability during sleep (range of lnRMSSD: 4.3 [0.4] to 4.5 [0.4] ln[ms] vs 4.6 [0.3] to 4.5 [0.4] ln[ms]; F3,52 = 2.148; P > .05; [.01–.25], medium effect), but HR during sleep was significantly higher after training days (range of HR: 56 [4] to 63 [7] beats/min vs 54 [4] to 57 [6] beats/min; F2,32 = 15.956; P < .001; [.20–.63], large effect). Conclusion: Overall, the results indicate that exercise training conducted at night may disturb sleep and affect HR, whereas limited effects can be expected in HR variability assessed during sleep in high-level female soccer players.
Júlio A. Costa; João Brito; Fábio Y. Nakamura; Eduardo M. Oliveira; Ovidio P. Costa; António N. Rebelo. Does Night Training Load Affect Sleep Patterns and Nocturnal Cardiac Autonomic Activity in High-Level Female Soccer Players? International Journal of Sports Physiology and Performance 2019, 14, 779 -787.
AMA StyleJúlio A. Costa, João Brito, Fábio Y. Nakamura, Eduardo M. Oliveira, Ovidio P. Costa, António N. Rebelo. Does Night Training Load Affect Sleep Patterns and Nocturnal Cardiac Autonomic Activity in High-Level Female Soccer Players? International Journal of Sports Physiology and Performance. 2019; 14 (6):779-787.
Chicago/Turabian StyleJúlio A. Costa; João Brito; Fábio Y. Nakamura; Eduardo M. Oliveira; Ovidio P. Costa; António N. Rebelo. 2019. "Does Night Training Load Affect Sleep Patterns and Nocturnal Cardiac Autonomic Activity in High-Level Female Soccer Players?" International Journal of Sports Physiology and Performance 14, no. 6: 779-787.