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Dr. Hugo Folgado
Departamento de Desporto e Saúde, Escola de Ciências e Tecnologia, Universidade de Évora, Évora, PortugalComprehensive Health Research Centre (CHRC), Universidade de Évora, Évora, Portugal

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0 Sports Science
0 complex system
0 Sport Performance
0 sport training

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Collective behaviour.

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Journal article
Published: 05 June 2021 in International Journal of Environmental Research and Public Health
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Relative age is a phenomenon broadly studied in sport sciences. Youth sports participants born earlier in the selection year tend to present a maturational advantage over their peers. As it is also dependent on physical performance, older physical education students may also benefit from this effect in this school subject. The main goal of this manuscript was to determine whether the relative age effect is present within physical fitness outcomes of Portuguese children and adolescents. The physical–aerobic fitness, strength, flexibility and body composition of 885 students (490 females and 395 males) were collected and compared by quarters of birth, segmented by gender and age groups (10–12; 12–14; 14–16 and 16–18 years). The results reveal a moderate to small effect in physical fitness outcomes, with a trend for children and adolescents born in the early part of the year to present higher performance levels. These differences were more evident in ages closer to the physical maturational onset (12–14 y) and more apparent in male students. This physical fitness advantage may lead to a biased assessment and development of students born earlier in the year.

ACS Style

Hugo Folgado; Jorge Bravo; Ana Quintas; Armando Raimundo; Bruno Gonçalves. Relative Age Effect in Physical Fitness of South Portugal Students between 10 and 18 Years Old. International Journal of Environmental Research and Public Health 2021, 18, 6092 .

AMA Style

Hugo Folgado, Jorge Bravo, Ana Quintas, Armando Raimundo, Bruno Gonçalves. Relative Age Effect in Physical Fitness of South Portugal Students between 10 and 18 Years Old. International Journal of Environmental Research and Public Health. 2021; 18 (11):6092.

Chicago/Turabian Style

Hugo Folgado; Jorge Bravo; Ana Quintas; Armando Raimundo; Bruno Gonçalves. 2021. "Relative Age Effect in Physical Fitness of South Portugal Students between 10 and 18 Years Old." International Journal of Environmental Research and Public Health 18, no. 11: 6092.

Journal article
Published: 29 October 2020 in Sensors
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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.

ACS Style

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 Style

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 (21):6163.

Chicago/Turabian Style

Bruno 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.

Review
Published: 08 October 2020 in Research Quarterly for Exercise and Sport
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Purpose: To systematically describe and analyze the tracking systems, the variables, and the statistical methods used to evaluate the players and teams’ tactical behavior in small-sided and conditioned games (SSCGs). Methods: A search was done in Web of Science, PubMed, Science Direct, and Scielo databases to identify manuscripts published between 2008 and 2019 that manipulated small-sided and conditioned games (SSCGs) and analyzed tactical behaviors of players and teams. Results: From 349 articles identified, 31 were selected for review. To collect positional data, the global positioning system (GPS), the local position measurement (LPM) system, and TACTO were identified as reliable tracking systems. Twenty-one positional variables were identified to evaluate tactical behaviors, grouped into five main categories: team balance, playing space, width and length of playing space, and interpersonal distance. Tactical behavior patterns were analyzed using approximate entropy, sample entropy, Shannon entropy, and patterns of coordination between players and teams were analyzed using relative phase and running correlation. Discussion: The tracking systems analyzed were reliable but revealed different advantages and disadvantages of their use. Authors should define the use of each tracking system based on their purpose and level of precision required for analysis. A great duplication was observed on the variables used with similar purposes of tactical analysis. The identification of the variables according to their purpose of analysis will allow a better understanding of their use in the future.

ACS Style

Nuno Coito; Keith Davids; Hugo Folgado; Teresa Bento; Bruno Travassos. Capturing and Quantifying Tactical Behaviors in Small-Sided and Conditioned Games in Soccer: A Systematic Review. Research Quarterly for Exercise and Sport 2020, 1 -15.

AMA Style

Nuno Coito, Keith Davids, Hugo Folgado, Teresa Bento, Bruno Travassos. Capturing and Quantifying Tactical Behaviors in Small-Sided and Conditioned Games in Soccer: A Systematic Review. Research Quarterly for Exercise and Sport. 2020; ():1-15.

Chicago/Turabian Style

Nuno Coito; Keith Davids; Hugo Folgado; Teresa Bento; Bruno Travassos. 2020. "Capturing and Quantifying Tactical Behaviors in Small-Sided and Conditioned Games in Soccer: A Systematic Review." Research Quarterly for Exercise and Sport , no. : 1-15.

Validation study
Published: 20 November 2019 in PLOS ONE
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Thus far, few studies have examined the estimation and actual performance of locomotor ability in older adults. To our knowledge, there are no studies examining the relationship between stepping-forward estimation versus ability and fall occurrence. The aim of this study was to develop and assess the reliability and validity of a new test for fall risk assessment in community-dwelling older adults. In total, 347 participants (73.1 ± 6.2 years; 266 women) were assessed for their perception of maximum distance for the stepping-forward and action boundary. The test was developed following the existing literature and expert opinions. The task showed strong internal consistency. Intraclass correlation ranged from 0.99 to 1 for intrarater agreement and from 0.83 to 0.97 for interrater agreement. Multivariate binary regression analysis models revealed an area under the curve (AUC) of 0.665 (95% CI: 0.608–0.723) for fallers and 0.728 (95% CI: 0.655–0.797) for recurrent fallers. The stepping-forward affordance perception test (SF-APT) was demonstrated to be accurate, reliable and valid for fall risk assessment. The results showed that a large estimated stepping-forward associated with an underestimated absolute error works as a protective mechanism for fallers and recurrent fallers in community-dwelling older adults. SF-APT is safe, quick, easy to administer, well accepted and reproducible for application in community or clinical settings by either clinical or nonclinical care professionals.

ACS Style

Gabriela Almeida; Jorge Bravo; Hugo Folgado; Hugo Rosado; Felismina Mendes; Catarina Pereira. Reliability and construct validity of the stepping-forward affordance perception test for fall risk assessment in community-dwelling older adults. PLOS ONE 2019, 14, e0225118 .

AMA Style

Gabriela Almeida, Jorge Bravo, Hugo Folgado, Hugo Rosado, Felismina Mendes, Catarina Pereira. Reliability and construct validity of the stepping-forward affordance perception test for fall risk assessment in community-dwelling older adults. PLOS ONE. 2019; 14 (11):e0225118.

Chicago/Turabian Style

Gabriela Almeida; Jorge Bravo; Hugo Folgado; Hugo Rosado; Felismina Mendes; Catarina Pereira. 2019. "Reliability and construct validity of the stepping-forward affordance perception test for fall risk assessment in community-dwelling older adults." PLOS ONE 14, no. 11: e0225118.

Articles
Published: 19 November 2019 in Physical Education and Sport Pedagogy
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Background: Assessment is crucial for the quality of teaching and learning in physical education (PE). Currently little is known about the students’ level of achievement in PE and about the parameters used for calculating the PE grades. Although there is evidence that boys are more active outside school than girls and participate more in organized sports, few studies have examined possible differences between genders in PE achievement. Furthermore, despite the current interest in the relationship between motor competencies and cognitive functioning, limited research has examined if PE grades are associated with academic achievement. Purpose: Considering the lack of information on the current level of students’ success in PE, the main aim of this study is to examine the PE grades of Portuguese students in secondary school. Specifically, this study analysis the level of students’ achievement in PE, the relation of PE grades with other school subjects’ grades, compares the PE grades between boys and girls, and presents the PE summative assessment parameters used in schools. Method: Participants were 1936 students (57% girls) from the 10th, 11th and 12th grades (16.8 ± 1.3 years old) attending eleven Portuguese secondary schools. Information was gathered on their grades in PE and in the other school subjects at the end of the school year. Information on the specific assessment parameters used in each school was also collected. Results: The average grades in PE were 14.9 ± 2.3 points (20-point scale). Only ∼1% of students with a final PE grade had a negative performance (<10 points). PE grades were relatively higher than in most of the other school-subjects and for most students (68.7%) the PE classification raised their overall average grade. The level of correlation between grades in PE and in other school subjects was statistically significant (r's = .13 to .29, p < .05) although lower than that between grades in the other school subjects (r's = .44 to .84, p < .01). There were significant differences between girls’ and boys’ grades in PE (14.3 ± 2.3 and 15.9 ± 2.1 points, respectively). The school assessment parameters prioritize physical performance over participation and attitude. Conclusion: The Portuguese students’ level of achievement in PE seems to be very satisfactory. However, as boys have higher grades than girls it is urgent to find appropriate strategies to tackle this problem. The associations found between PE grades and academic achievement could have relevant repercussions considering the current debate about the status of PE and about the relationship between motor and cognitive competencies. It is also relevant that the schools’ summative assessment parameters are based mainly on skill mastery and not on effort and participation. This study provided a brief glance into some aspects of the assessment of PE in Portugal and is it is desirable that future investigations examine the teacher's assessment practices.

ACS Style

José Marmeleira; Hugo Folgado; Ismael Martínez Guardado; Nuno Batalha. Grading in Portuguese secondary school physical education: assessment parameters, gender differences and associations with academic achievement. Physical Education and Sport Pedagogy 2019, 25, 119 -136.

AMA Style

José Marmeleira, Hugo Folgado, Ismael Martínez Guardado, Nuno Batalha. Grading in Portuguese secondary school physical education: assessment parameters, gender differences and associations with academic achievement. Physical Education and Sport Pedagogy. 2019; 25 (2):119-136.

Chicago/Turabian Style

José Marmeleira; Hugo Folgado; Ismael Martínez Guardado; Nuno Batalha. 2019. "Grading in Portuguese secondary school physical education: assessment parameters, gender differences and associations with academic achievement." Physical Education and Sport Pedagogy 25, no. 2: 119-136.

Articles
Published: 03 September 2019 in Research Quarterly for Exercise and Sport
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Purpose: This study aimed to compare players’ performances when manipulating the external markings of the pitch during football small-sided games. Methods: Ten under-15 players performed a 5-a-side (plus goalkeepers) under three conditions: (i) Lines, the game was played in a pitch in which the external boundaries were painted with full lines; (ii) Dashed, the game was played in a pitch in which the external boundaries were painted with dashed lines; (iii) Corners, the game was played in a pitch were the external boundaries were delimited by one marker at each pitch corner. Players’ positional data was used to compute tactical and time-motion variables. Also, technical analysis was comprised using video footage. Results: Results showed similar tactical, physical and technical performances between the Lines and Dashed conditions. In contrast, the Lines condition showed small higher effects than Corners scenario in the time spent synchronized in longitudinal and lateral displacements, game pace, total distance covered, distance covered while jogging, number successful dribbles and shots on target. The Lines scenario has also revealed a lower effective playing space, distance covered at walking and running and a lower number of passes (small effects) compared to Corners. Conclusions: These results highlight that these changes in informational perception constraints modify players movement behavior. Accordingly, pitches with more visible boundaries were likely to decrease team dispersion, which may optimize team synchrony and technical performances, while decreasing the distance covered at higher speeds. Coaches may use this information to modify the types of pitch external boundaries markings, exposing the players to different environmental information.

ACS Style

Diogo Coutinho; Bruno Gonçalves; Bruno Travassos; Hugo Folgado; Bruno Figueira; Jaime Sampaio. Different Marks in the Pitch Constraint Youth Players’ Performances During Football Small-sided Games. Research Quarterly for Exercise and Sport 2019, 91, 15 -23.

AMA Style

Diogo Coutinho, Bruno Gonçalves, Bruno Travassos, Hugo Folgado, Bruno Figueira, Jaime Sampaio. Different Marks in the Pitch Constraint Youth Players’ Performances During Football Small-sided Games. Research Quarterly for Exercise and Sport. 2019; 91 (1):15-23.

Chicago/Turabian Style

Diogo Coutinho; Bruno Gonçalves; Bruno Travassos; Hugo Folgado; Bruno Figueira; Jaime Sampaio. 2019. "Different Marks in the Pitch Constraint Youth Players’ Performances During Football Small-sided Games." Research Quarterly for Exercise and Sport 91, no. 1: 15-23.

Research article
Published: 24 July 2018 in PLoS ONE
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This study aimed to: (i) examine whether the speed synchronization and physical performance of an elite football team changed between the first and the second half, using match time blocks of 15-min, and (ii) explore the match-to-match variation of players’ speed synchronization performance. Twenty-eight outfield elite footballers participated in 51 official matches. Positional data were gathered and used to calculate the total distance covered as a physical workload indicator. For all the outfield teammate dyad combinations (45 pairs), it was processed the percentage of time that players’ speed was synchronized during walking, jogging and running using relative phase (Hilbert Transform). Also, the match-to-match variation of the players’ speed synchronization, expressed in coefficient of variation was computed. The differences in the total distance covered from all players within the different match’s time block periods revealed a moderate decrease in the distance covered in the last 15-min of the match compared to the first 15-min (-6.5; ±1.07%, most likely: change in means with 95% confidence limits). However, when compared the last minutes from both halves a small increase was observed (2.7; ±1.2%, likely) from first to second half. The synchronization of the players’ speed displacements revealed small to moderate decreases in the % of synchronization in the second half periods for the jogging and running speed, while the opposite was found for the walking speed (~13 to 24% more, most likely). The playing position analysis for the walking zone showed similar trends between the groups, with small to moderate higher values in the second half, with the exception of [30’-45’] vs [75’-90’] in the midfielder’s dyads and in [15’-30’] vs [60’-75’] match periods for forwards. Similar trend was found during the running speed, in which small to moderate higher synchronization was found during the first half periods, with the exception of [15’-30’] vs [60’-75’] and [30’-45’] vs [75’-90’] in midfielder’s dyads. Regarding to the match-to-match variation of the players’ speed synchronization, overall results showed small to moderate increases in coefficient of variation during jogging and running displacements from the beginning to the end of the match (32.1; ±13.2% increase in jogging and 26.2; ±10.5% in running, both comparisons most likely). The higher distance covered during most of the first half periods and the higher dyadic synchronization at high speeds might have limited players’ performance in the second half. In addition, the decrease trend in speed synchronization during the second half periods might have resulted from accumulated muscular and mental fatigue towards the match. Within, the match-to-match variation in tactical-related variables increased across the match duration, with especial focus in the midfielder dyads. Dyadic speed synchronization might provide relevant information concerning the individual and collective performance.

ACS Style

Bruno Gonçalves; Diogo Coutinho; Bruno Travassos; Hugo Folgado; Pedro Caixinha; Jaime Sampaio. Speed synchronization, physical workload and match-to-match performance variation of elite football players. PLoS ONE 2018, 13, e0200019 .

AMA Style

Bruno Gonçalves, Diogo Coutinho, Bruno Travassos, Hugo Folgado, Pedro Caixinha, Jaime Sampaio. Speed synchronization, physical workload and match-to-match performance variation of elite football players. PLoS ONE. 2018; 13 (7):e0200019.

Chicago/Turabian Style

Bruno Gonçalves; Diogo Coutinho; Bruno Travassos; Hugo Folgado; Pedro Caixinha; Jaime Sampaio. 2018. "Speed synchronization, physical workload and match-to-match performance variation of elite football players." PLoS ONE 13, no. 7: e0200019.

Journal article
Published: 14 June 2018 in Sensors
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The present study aims to identify the accuracy of the NBN23® system, an indoor tracking system based on radio-frequency and standard Bluetooth Low Energy channels. Twelve capture tags were attached to a custom cart with fixed distances of 0.5, 1.0, 1.5, and 1.8 m. The cart was pushed along a predetermined course following the lines of a standard dimensions Basketball court. The course was performed at low speed (10.0 km/h and 20.0 km/h). Root mean square error (RMSE) and percentage of variance accounted for (%VAF) were used as accuracy measures. The obtained data showed acceptable accuracy results for both RMSE and %VAF, despite the expected degree of error in position measurement at higher speeds. The RMSE for all the distances and velocities presented an average absolute error of 0.30 ± 0.13 cm with 90.61 ± 8.34 of %VAF, in line with most available systems, and considered acceptable for indoor sports. The processing of data with filter correction seemed to reduce the noise and promote a lower relative error, increasing the %VAF for each measured distance. Research using positional-derived variables in Basketball is still very scarce; thus, this independent test of the NBN23® tracking system provides accuracy details and opens up opportunities to develop new performance indicators that help to optimize training adaptations and performance.

ACS Style

Bruno Figueira; Bruno Gonçalves; Hugo Folgado; Nerijus Masiulis; Julio Calleja-González; Jaime Sampaio. Accuracy of a Basketball Indoor Tracking System Based on Standard Bluetooth Low Energy Channels (NBN23®). Sensors 2018, 18, 1940 .

AMA Style

Bruno Figueira, Bruno Gonçalves, Hugo Folgado, Nerijus Masiulis, Julio Calleja-González, Jaime Sampaio. Accuracy of a Basketball Indoor Tracking System Based on Standard Bluetooth Low Energy Channels (NBN23®). Sensors. 2018; 18 (6):1940.

Chicago/Turabian Style

Bruno Figueira; Bruno Gonçalves; Hugo Folgado; Nerijus Masiulis; Julio Calleja-González; Jaime Sampaio. 2018. "Accuracy of a Basketball Indoor Tracking System Based on Standard Bluetooth Low Energy Channels (NBN23®)." Sensors 18, no. 6: 1940.

Journal article
Published: 06 June 2018 in Journal of Human Kinetics
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Success in soccer is much dependent on how players and teams create and restrict space and time. In match situations, players constitute small sub-groups to improve their collective synchronization and achievement of specific goals. This study aimed to identify changes in the effective playing space (EPS, defined as the smallest polygonal area delimited by the peripheral outfield players) when considering sub-groups of 3 to 10 players. Twenty outfield professional players participated in this study. The EPS, its regularity pattern (measured by the approximate entropy), coefficient of variation and players’ mean speed were calculated for sub-groups of 3, 4, 5, 6, 7, 8, 9 and 10 players, considering the smallest inter-player distance as the criterion. The EPS presented a most likely increase with a higher number of players, especially considering the transition from 3 to 4 players (~440% of variation, very large). As the EPS increased with the number of players, the correspondent regularity presented a trend of a most likely increase (from EPS3 vs. EPS4: ~25%, very large; to EPS9 vs. EPS10: ~11%, moderate). The mean speed results suggest that players may achieve different states of collective coordination, mainly between ~6 to 8 km.h-1. Overall, three different match scenarios should require additional attention when aiming to design more match transferable tasks: i) transition from EPS3 to EPS4; ii) transition from EPS4 up to EPS8; and iii) transition from EPS8 to EPS9. These results help to understand match self-organized behaviours and, consequently, allow to optimize task characteristics in practice sessions.

ACS Style

Bruno Gonçalves; Hugo Folgado; Diogo Coutinho; Rui Marcelino; Del Wong; Nuno Leite; Jaime Sampaio. Changes in Effective Playing Space When Considering Sub-Groups of 3 to 10 Players in Professional Soccer Matches. Journal of Human Kinetics 2018, 62, 145 -155.

AMA Style

Bruno Gonçalves, Hugo Folgado, Diogo Coutinho, Rui Marcelino, Del Wong, Nuno Leite, Jaime Sampaio. Changes in Effective Playing Space When Considering Sub-Groups of 3 to 10 Players in Professional Soccer Matches. Journal of Human Kinetics. 2018; 62 (1):145-155.

Chicago/Turabian Style

Bruno Gonçalves; Hugo Folgado; Diogo Coutinho; Rui Marcelino; Del Wong; Nuno Leite; Jaime Sampaio. 2018. "Changes in Effective Playing Space When Considering Sub-Groups of 3 to 10 Players in Professional Soccer Matches." Journal of Human Kinetics 62, no. 1: 145-155.

Journal article
Published: 08 January 2018 in Revista Ibero-Americana de Saúde e Envelhecimento
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Objetivo: O objetivo deste estudo foi relacionar os níveis de atividade física, quantificados através de acelerometria, com o nível de aptidão funcional em idosos da região do Alentejo, Portugal. Métodos: Foram avaliados 55 homens e 100 mulheres, com 65 anos ou mais, para a intensidade da atividade física diária através de acelerómetros e para aptidão funcional através da bateria Senior Fitness Test. Foram analisadas as associações entre a aptidão funcional e o tempo passado em atividade física a diferentes intensidades. Resultados: Foram encontradas associações negativas entre o tempo de atividade sedentária e a resistência aeróbia, a flexibilidade do trem superior e a agilidade. Por outro lado, o tempo de atividade física leve e moderada apresentaram uma associação positiva com a força, a flexibilidade do trem superior, a agilidade e a resistência aeróbia, tanto nos dias de semana como nos dias de fim-de-semana. Resultados semelhantes foram encontrados para o tempo passado em atividade física moderada. Conclusões: Os idosos mais ativos apresentam melhor aptidão funcional. Os resultados deste estudo reforçam a importância de promover a atividade física e reduzir os comportamentos sedentários para melhorar a aptidão funcional e a autonomia nos idosos. Descritores: Envelhecimento; Aptidão física; Atividade física; AcelerometriaAbstract Objective: This study aims to study the relationship between physical activity levels, mea- sured with accelerometry, and functional fitness in older adults in the Alentejo region, Portugal. Methods: Fifty-five men and 100 women, aged 65 years and over, were evaluated for the intensity of daily physical activity with accelerometers and for functional fitness with the Senior Fitness Test battery. The associations between functional fitness and time spent in physical activity at different intensities were analyzed. Results: Negative associations were found between sedentary activity time and aerobic endurance, upper-body flexibility and agility. On the other hand, mild and moderate phys- ical activity time showed a positive association with strength, upper-body flexibility, agili- ty and aerobic endurance, both on weekdays and on weekends. Similar results were found for the time spent in moderate physical activity. Conclusions: More active older adults exhibit better functional fitness. The results of this study reinforce the importance of promoting physical activity and reducing sedentary be- haviors to improve functional fitness and autonomy in the elderly. Descriptors: Aging; physical fitness; physical activity; accelerometry.

ACS Style

Jorge Duarte Bravo; Guilherme Raquel; Hugo Miguel Folgado; Armando Raimundo. NÍVEIS DE ATIVIDADE FÍSICA E APTIDÃO FUNCIONAL EM IDOSOS DA REGIÃO DO ALENTEJO, PORTUGAL PHYSICAL ACTIVITY LEVELS AND FUNCTIONAL FITNESS IN OLDER ADULTS IN THE ALENTEJO REGION, PORTUGAL. Revista Ibero-Americana de Saúde e Envelhecimento 2018, 3, 955 .

AMA Style

Jorge Duarte Bravo, Guilherme Raquel, Hugo Miguel Folgado, Armando Raimundo. NÍVEIS DE ATIVIDADE FÍSICA E APTIDÃO FUNCIONAL EM IDOSOS DA REGIÃO DO ALENTEJO, PORTUGAL PHYSICAL ACTIVITY LEVELS AND FUNCTIONAL FITNESS IN OLDER ADULTS IN THE ALENTEJO REGION, PORTUGAL. Revista Ibero-Americana de Saúde e Envelhecimento. 2018; 3 (2):955.

Chicago/Turabian Style

Jorge Duarte Bravo; Guilherme Raquel; Hugo Miguel Folgado; Armando Raimundo. 2018. "NÍVEIS DE ATIVIDADE FÍSICA E APTIDÃO FUNCIONAL EM IDOSOS DA REGIÃO DO ALENTEJO, PORTUGAL PHYSICAL ACTIVITY LEVELS AND FUNCTIONAL FITNESS IN OLDER ADULTS IN THE ALENTEJO REGION, PORTUGAL." Revista Ibero-Americana de Saúde e Envelhecimento 3, no. 2: 955.

Original articles
Published: 05 November 2017 in Science and Medicine in Football
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Purpose: This study aimed to explore whether the outcome of professional football matches is affected by changes in intra-team movement synchronization. Methods: Positional data from 77 players were collected during 4 matches of an English Premier League team, using the ProZone® tracking system. Intra-team movement synchronization was calculated using the relative phase of all possible pairing combinations of outfield teammates (dyads) and quantified by the overall percentage of time spent near-in-phase (−30º to 30º bin). Per each displacement axis, a 2 × 2 mixed-model analysis of variance (ANOVA) was used to compare the overall dyadic movement synchronization according to the team and the match final outcome. A two-way ANOVA was used to compare movement synchronization according to dyads’ on-field position (defensive or offensive) and match final outcome. Results: Despite individual dynamical trends during each match, the analysed team tended to exhibit lower movement synchronization when losing. Also, dyads with an emphasis in defensive roles seem to present a more synchronized behaviour during the match than dyads with more offensive roles. Conclusions: Findings suggest that movement synchronization may serve as a tactical performance indicator candidate, reflecting the dynamical interaction between teammates and opponents during the match.

ACS Style

Hugo Folgado; Ricardo Duarte; Pedro Marques; Bruno Gonçalves; Jaime Sampaio. Exploring how movement synchronization is related to match outcome in elite professional football. Science and Medicine in Football 2017, 2, 101 -107.

AMA Style

Hugo Folgado, Ricardo Duarte, Pedro Marques, Bruno Gonçalves, Jaime Sampaio. Exploring how movement synchronization is related to match outcome in elite professional football. Science and Medicine in Football. 2017; 2 (2):101-107.

Chicago/Turabian Style

Hugo Folgado; Ricardo Duarte; Pedro Marques; Bruno Gonçalves; Jaime Sampaio. 2017. "Exploring how movement synchronization is related to match outcome in elite professional football." Science and Medicine in Football 2, no. 2: 101-107.

Original research
Published: 23 October 2017 in Research in Sports Medicine
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This study aimed to identify changes in tactical, physical and physiological performances in large-sided games during the preseason of elite footballers. Thirty professional football players participated in several GK+8vs.8+GK large-sided games across the first four weeks of the season. Players were monitored by GPS units and heart rate monitors to quantify physical, physiological and tactical performances. The variables were compared according to the preseason period, players' positioning and professional experience. The training situation promoted similar physiological responses during the first and the last training period. However, players were revealed to have higher levels of positional synchronization during the last preseason period, indicating an improved tactical performance. Tactical variables seem to reflect the improvement of players' performance during the preseason, measured in large-sided games situation, while affecting both physical and physiological demands. These results highlight the potential of positioning derived variables, concurrently to physical and physiological variables, for football training optimization.

ACS Style

Hugo Folgado; Bruno Gonçalves; Jaime Sampaio. Positional synchronization affects physical and physiological responses to preseason in professional football (soccer). Research in Sports Medicine 2017, 26, 51 -63.

AMA Style

Hugo Folgado, Bruno Gonçalves, Jaime Sampaio. Positional synchronization affects physical and physiological responses to preseason in professional football (soccer). Research in Sports Medicine. 2017; 26 (1):51-63.

Chicago/Turabian Style

Hugo Folgado; Bruno Gonçalves; Jaime Sampaio. 2017. "Positional synchronization affects physical and physiological responses to preseason in professional football (soccer)." Research in Sports Medicine 26, no. 1: 51-63.

Journal article
Published: 01 September 2017 in Journal of Strength and Conditioning Research
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Gonçalves, B, Esteves, P, Folgado, H, Ric, A, Torrents, C, and Sampaio, J. Effects of pitch area-restrictions on tactical behavior, physical and physiological performances in soccer large-sided games. J Strength Cond Res 31(9): 2398-2408, 2017-The aim of this study was to identify how pitch area-restrictions affect the tactical behavior, physical, and physiological performances of players during soccer large-sided games. A 10 vs. 9 large-sided game was performed under 3 experimental conditions: (a) restricted-spacing, the pitch was divided into specific areas where players were assigned and they should not leave it; (b) contiguous-spacing, the pitch was divided into specific areas where the players were only allowed to move to a neighboring one; (c) free-spacing, the players had no restrictions in space occupation. The positional data were used to compute players' spatial exploration index and also the distance, coefficient of variation, approximate entropy, and frequency of near-in-phase displacements synchronization of players' dyads formed by the outfield teammates. Players' physical and physiological performances were assessed by the distance covered at different speed categories, game pace, and heart rate. Most likely higher values were found in players' spatial exploration index under free-spacing conditions. The synchronization between dyads' displacements showed higher values for contiguous-spacing and free-spacing conditions. In contrast, for the jogging and running intensity zones, restricted-spacing demanded a moderate effect and most likely decrease compared with other scenarios (∼20-50% to jogging and ∼60-90% to running). Overall, the effects of limiting players' spatial exploration greatly impaired the coadaptation between teammates' positioning while decreasing the physical and physiological performances. These results allow for a better understanding of players' decision-making process according to specific task rules and can be relevant to enrich practice task design, such that coaches acknowledge the differential effect by using specific pitch-position area restrictions.

ACS Style

Bruno Gonçalves; Pedro Esteves; Hugo Folgado; Angel Ric; Carlota Torrents; Jaime Sampaio. Effects of Pitch Area-Restrictions on Tactical Behavior, Physical, and Physiological Performances in Soccer Large-Sided Games. Journal of Strength and Conditioning Research 2017, 31, 2398 -2408.

AMA Style

Bruno Gonçalves, Pedro Esteves, Hugo Folgado, Angel Ric, Carlota Torrents, Jaime Sampaio. Effects of Pitch Area-Restrictions on Tactical Behavior, Physical, and Physiological Performances in Soccer Large-Sided Games. Journal of Strength and Conditioning Research. 2017; 31 (9):2398-2408.

Chicago/Turabian Style

Bruno Gonçalves; Pedro Esteves; Hugo Folgado; Angel Ric; Carlota Torrents; Jaime Sampaio. 2017. "Effects of Pitch Area-Restrictions on Tactical Behavior, Physical, and Physiological Performances in Soccer Large-Sided Games." Journal of Strength and Conditioning Research 31, no. 9: 2398-2408.

Sports performance
Published: 22 June 2017 in Journal of Sports Sciences
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This study aimed to compare youth football players' performance during two small-sided games with different pitch orientation: i) 40x30m and ii) 30x40m formats. Twenty under-15 players (age = 14.1 ± 0.5 years) participated in nine GK+4vs4+GK situations in each format, with the duration of six minutes each. Positional data were collected using individual GPS units, and computed for tactical and physical performance indicators. The SSG were video recorded, using notational analysis for collecting technical indicators. A novel method that incorporates time dependent notational information with spatiotemporal data was used to compute multidimensional parameters. Standardised effect sizes and non-clinical magnitude-based inferences were used to compare formats. Results showed that players covered more distance at higher intensities, presented more passes and dribbles and were more synchronised in the longitudinal axis while playing in the 40x30m pitch. In the 30x40m pitch, results showed a lower distance between team centroids, higher number of shots, more lateral passes and a wider team positioning. Multidimensional indicators, as players position and distance to the closest defender while shooting, revealed a more constant distance between attacker and defender in the 40x30m pitch. These results highlight the importance of integrating information from different indicators for a contextually valid information.

ACS Style

Hugo Folgado; Jorge Bravo; Paulo Pereira; Jaime Sampaio. Towards the use of multidimensional performance indicators in football small-sided games: the effects of pitch orientation. Journal of Sports Sciences 2017, 37, 1064 -1071.

AMA Style

Hugo Folgado, Jorge Bravo, Paulo Pereira, Jaime Sampaio. Towards the use of multidimensional performance indicators in football small-sided games: the effects of pitch orientation. Journal of Sports Sciences. 2017; 37 (9):1064-1071.

Chicago/Turabian Style

Hugo Folgado; Jorge Bravo; Paulo Pereira; Jaime Sampaio. 2017. "Towards the use of multidimensional performance indicators in football small-sided games: the effects of pitch orientation." Journal of Sports Sciences 37, no. 9: 1064-1071.

Journal article
Published: 03 June 2017 in Motricidade
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The papers published in this book of s / proceedings were submitted to the Scientific Commission of the International Congress of Research Center in Sports Sciences, Health Sciences & Human Development, held on 11 and 12 November 2016, at the University of Évora, Évora, Portugal, under the topic of Exercise and Health, Sports and Human Development. The content of the s is solely and exclusively of its authors responsibility. The editors and the Scientific Committee of the International Congress of Research Center in Sports Sciences, Health Sciences & Human Development do not assume any responsibility for the opinions and statements expressed by the authors. Partial reproduction of the texts and their use without commercial purposes is allowed, provided the source / reference is duly mentioned.

ACS Style

Vitor Reis; António Silva; Nuno Batalha; Francisco Saavedra; Catarina Abrantes; Aldo Costa; Mário Marques; Daniel Marinho; Bruno Travassos; Ana Pereira; Carolina Vila-Chã; Pedro Esteves; Hugo Louro; Luís Cid; Ana Teresa Conceição; Tiago M. Barbosa; Vitor Lopes; Susana Póvoas; José Marmeleira; Borja Sanudo Corrales; Guilhermo Olcina; Marcus Maynar; Jesus Del Pozo; Rafael Timon; Armando Raimundo; Hugo Folgado. Abstracts of the International Congress of Research Center in Sports Sciences, Health Sciences & Human Development (2016). Motricidade 2017, 13, 99 .

AMA Style

Vitor Reis, António Silva, Nuno Batalha, Francisco Saavedra, Catarina Abrantes, Aldo Costa, Mário Marques, Daniel Marinho, Bruno Travassos, Ana Pereira, Carolina Vila-Chã, Pedro Esteves, Hugo Louro, Luís Cid, Ana Teresa Conceição, Tiago M. Barbosa, Vitor Lopes, Susana Póvoas, José Marmeleira, Borja Sanudo Corrales, Guilhermo Olcina, Marcus Maynar, Jesus Del Pozo, Rafael Timon, Armando Raimundo, Hugo Folgado. Abstracts of the International Congress of Research Center in Sports Sciences, Health Sciences & Human Development (2016). Motricidade. 2017; 13 (1):99.

Chicago/Turabian Style

Vitor Reis; António Silva; Nuno Batalha; Francisco Saavedra; Catarina Abrantes; Aldo Costa; Mário Marques; Daniel Marinho; Bruno Travassos; Ana Pereira; Carolina Vila-Chã; Pedro Esteves; Hugo Louro; Luís Cid; Ana Teresa Conceição; Tiago M. Barbosa; Vitor Lopes; Susana Póvoas; José Marmeleira; Borja Sanudo Corrales; Guilhermo Olcina; Marcus Maynar; Jesus Del Pozo; Rafael Timon; Armando Raimundo; Hugo Folgado. 2017. "Abstracts of the International Congress of Research Center in Sports Sciences, Health Sciences & Human Development (2016)." Motricidade 13, no. 1: 99.

Journal article
Published: 16 March 2016 in Revista Brasileira de Cineantropometria & Desempenho Humano
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DOI: http://dx.doi.org/10.5007/1980-0037.2016v18n1p62 The aim of this study was to compare the collective tactical behavior between numerically balanced and unbalanced small-sided soccer games. Eighteen male soccer players (mean age 16.4 years) participated in the study. Polar coordinate analysis was performed using positional data obtained with a 15-Hz GPS device. Collective variables including length, width, centroid distance (average point between teammates), and length per width ratio (LPWratio) were collected. Data were analyzed using Friedman’s test. The results showed greater length and width values in 4vs.3 games, while a higher LPWratiowas observed in 3vs.3+2 games compared to the other configurations. In games with an additional player (4vs.3), ball circulation and the increase in effective game space were alternatives to overcome the more concentrated defensive systems near the goal. On the other hand, 3vs.3+2 games allowed more actions in the length axis and a fast reach of the opponent’s goal.

ACS Style

Gibson Moreira Praça; Hugo Folgado; André Gustavo Pereira De Andrade; Pablo Juan Greco. Comportamento tático coletivo em Pequenos Jogos no Futebol: influência de jogadores adicionais. Revista Brasileira de Cineantropometria & Desempenho Humano 2016, 18, 62 -71.

AMA Style

Gibson Moreira Praça, Hugo Folgado, André Gustavo Pereira De Andrade, Pablo Juan Greco. Comportamento tático coletivo em Pequenos Jogos no Futebol: influência de jogadores adicionais. Revista Brasileira de Cineantropometria & Desempenho Humano. 2016; 18 (1):62-71.

Chicago/Turabian Style

Gibson Moreira Praça; Hugo Folgado; André Gustavo Pereira De Andrade; Pablo Juan Greco. 2016. "Comportamento tático coletivo em Pequenos Jogos no Futebol: influência de jogadores adicionais." Revista Brasileira de Cineantropometria & Desempenho Humano 18, no. 1: 62-71.

Journal article
Published: 01 June 2015 in Revista Brasileira de Medicina do Esporte
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Dentre as lesões ocorridas em jogadores de futebol, as lesões dos isquiotibiais são as mais frequentes. Programas de exercício que previnam o seu aparecimento e diminuam a sua recorrência e severidade são de extrema importância para os fisioterapeutas, treinadores e jogadores. Conhecer as evidências científicas sobre a eficácia de programas de exercício na prevenção de lesões dos isquiotibiais, em jogadores de futebol masculino. Os estudos foram selecionados para revisão em diferentes bases de dados. Para avaliar a qualidade metodológica dos estudos e a força de evidência dos resultados utilizou-se a escala da Base de dados de Evidência em Fisioterapia (PEDro) e o sistema de classificação Melhor Síntese de Evidência, respectivamente. Os programas de exercício utilizados foram: força concêntrica e excêntrica; força excêntrica Nordic Hamstrings; The FIFA 11+; e elasticidade. As variáveis estudadas foram a incidência de lesões, a incidência de novas lesões, a recorrência de lesões, a severidade das lesões e o risco de lesão. O programa de força concêntrica e excêntrica e o programa de força excêntrica Nordic Hamstrings parecem ser os mais eficazes na redução da incidência das lesões e da incidência de novas lesões dos isquiotibiais, respetivamente (evidências limitadas). O programa de exercício de força excêntrica Nordic Hamstring não é eficaz na diminuição do risco de lesão (evidências limitada) e na melhoria da severidade das lesões (evidência moderada). O programa The FIFA 11+ não é eficaz na redução da incidência das lesões (evidência limitada). Há evidências contraditórias nas variáveis restantes.

ACS Style

Ana Cruz-Ferreira; António Marujo; Hugo Folgado; Paulo Gutierres Filho; Jorge Fernandes. Programas de exercício na prevenção de lesões em jogadores de futebol: uma revisão sistemática. Revista Brasileira de Medicina do Esporte 2015, 21, 236 -241.

AMA Style

Ana Cruz-Ferreira, António Marujo, Hugo Folgado, Paulo Gutierres Filho, Jorge Fernandes. Programas de exercício na prevenção de lesões em jogadores de futebol: uma revisão sistemática. Revista Brasileira de Medicina do Esporte. 2015; 21 (3):236-241.

Chicago/Turabian Style

Ana Cruz-Ferreira; António Marujo; Hugo Folgado; Paulo Gutierres Filho; Jorge Fernandes. 2015. "Programas de exercício na prevenção de lesões em jogadores de futebol: uma revisão sistemática." Revista Brasileira de Medicina do Esporte 21, no. 3: 236-241.

Science and medicine in football
Published: 13 March 2015 in Journal of Sports Sciences
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The aim of this study was to examine the physical and tactical performances of a professional football team under congested and non-congested fixture periods. Six home matches of an English professional football team were analysed during competitive season (3 matches distancing three days from the previous fixture and 3 matches distancing six or more days from the previous fixture). Players’ physical performances were measured by the total distance covered and distance covered at different speed categories. Tactical performances were measured by the percentage of time of players’ movement synchronisation of lateral and longitudinal displacements. This variable was calculated considering all the possible pairs of outfield players, for the overall match and at different speed categories. Results showed no differences in the physical performance, although players’ spent more time synchronised during the non-congested fixtures compared to congested fixtures, both for lateral (41.26% to 38.51%, ES: −0.3, P < 0.001) and longitudinal displacements (77.22% to 74.48%, ES: −0.5, P < 0.001). These coordination differences were particularly evident at the lower speed categories and in dyads composed by positions that tend to be further apart during the match, typically central and wing positioned players. Tactical performance seems to be affected by fixtures distribution, with players’ spending more time synchronised during the non-congested fixtures. As players’ cover the same amount of distance at similar intensities in both fixtures distribution, this reduction of synchronisation may be associated with an increased perception of fatigue and consequent adaptation strategies.

ACS Style

Hugo Folgado; Ricardo Duarte; Pedro Marques; Jaime Sampaio. The effects of congested fixtures period on tactical and physical performance in elite football. Journal of Sports Sciences 2015, 33, 1238 -1247.

AMA Style

Hugo Folgado, Ricardo Duarte, Pedro Marques, Jaime Sampaio. The effects of congested fixtures period on tactical and physical performance in elite football. Journal of Sports Sciences. 2015; 33 (12):1238-1247.

Chicago/Turabian Style

Hugo Folgado; Ricardo Duarte; Pedro Marques; Jaime Sampaio. 2015. "The effects of congested fixtures period on tactical and physical performance in elite football." Journal of Sports Sciences 33, no. 12: 1238-1247.

Research article
Published: 09 May 2014 in PLOS ONE
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This study aimed to quantify the time-motion demands and intra-team movement synchronization during the pre-season matches of a professional soccer team according to the opposition level. Positional data from 20 players were captured during the first half of six pre-season matches of a Portuguese first league team. Time-motion demands were measured by the total distance covered and distance covered at different speed categories. Intra-team coordination was measured by calculating the relative phase of all pairs of outfield players. Afterwards, the percentage of time spent in the −30° to 30° bin (near-in-phase mode of coordination) was calculated for each dyad as a measure of space-time movement synchronization. Movement synchronization data were analyzed for the whole team, according to each dyad average speed and by groups of similar dyadic synchronization tendencies. Then, these data were compared according to the opponent team level (first league; second league; amateurs). Time-motion demands showed no differences in total distance covered per opposition levels, while matches opposing teams of superior level revealed more distance covered at very high intensity. Competing against superior level teams implied more time in synchronized behavior for the overall displacements and displacements at higher intensities. These findings suggest that playing against higher-level opponents (1st league teams) increased time-motion demands at high intensities in tandem with intra-team movement synchronization tendencies.

ACS Style

Hugo Folgado; Ricardo Duarte; Orlando De Jesus Fernandes; Jaime Sampaio. Competing with Lower Level Opponents Decreases Intra-Team Movement Synchronization and Time-Motion Demands during Pre-Season Soccer Matches. PLOS ONE 2014, 9, e97145 .

AMA Style

Hugo Folgado, Ricardo Duarte, Orlando De Jesus Fernandes, Jaime Sampaio. Competing with Lower Level Opponents Decreases Intra-Team Movement Synchronization and Time-Motion Demands during Pre-Season Soccer Matches. PLOS ONE. 2014; 9 (5):e97145.

Chicago/Turabian Style

Hugo Folgado; Ricardo Duarte; Orlando De Jesus Fernandes; Jaime Sampaio. 2014. "Competing with Lower Level Opponents Decreases Intra-Team Movement Synchronization and Time-Motion Demands during Pre-Season Soccer Matches." PLOS ONE 9, no. 5: e97145.

Chapter
Published: 20 November 2013 in Complex Systems in Sport
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ACS Style

Hugo Folgado. Single camera analyses in studying pattern-forming dynamics of player interactions in team sports. Complex Systems in Sport 2013, 186 -200.

AMA Style

Hugo Folgado. Single camera analyses in studying pattern-forming dynamics of player interactions in team sports. Complex Systems in Sport. 2013; ():186-200.

Chicago/Turabian Style

Hugo Folgado. 2013. "Single camera analyses in studying pattern-forming dynamics of player interactions in team sports." Complex Systems in Sport , no. : 186-200.