Browsing by Author "Fernandes, Renato"
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- Caracterização Socioprofissional dos Treinadores do Futebol de Formação da AFL e AFSPublication . Teixeira, Eduardo; Padinha, Vítor; Coito, Nuno; Fernandes, Renato; Miguel, MauroO presente relatório, desenvolvido pelo Gabinete de Futebol da Escola Superior de Desporto de Rio Maior (FOOTESDRM), do Instituto Politécnico de Santarém, pretendeu caracterizar os Treinadores de Futebol de Formação inscritos na Associação de Futebol de Leiria (AFL) e na Associação de Futebol de Santarém (AFS), na época desportiva 2022-2023. De acordo com os dados disponibilizados pelas respetivas associações, a população total de estudo compreende 760 treinadores. Sequentemente, a amostra do estudo foi constituída por 391 Treinadores (192 inscritos na AF Leiria e 199 inscritos na AF Santarém). A recolha de dados ocorreu entre fevereiro e abril de 2023, tendo os mesmos sido recolhidos através da aplicação online (Microsoft Forms) de um questionário, que integrou um total de 33 questões (respostas fechadas às opções existentes). O instrumento apresentou uma estrutura composta por um consentimento informado, uma área de caraterização socioprofissional (área 1) e uma área de conhecimento e domínio tecnológico (área 2). Asseverando-se uma participação de 51,5% dos treinadores das duas associações, observa-se que: (a) menos de 5% dos treinadores são do sexo feminino; (b) somente 8,7% dos treinadores apresentam idade superior a 49 anos; (c) predominantemente, as habilitações técnicas dos treinadores são de Grau I e II (apenas 3,5% têm Grau III e IV); (d) 44,6% dos treinadores têm formação superior, dos quais 70% são formados na área das ciências do desporto; (e) 13,6% dos treinadores são, também, jogadores federados; (f) os treinadores acedem ao TPTD maioritariamente através dos cursos de treinadores das associações (61,9%); tendencialmente, os treinadores exercem a sua atividade no distrito de residência (88% AF Leiria e 87,9% AF Santarém); (g) cerca de metade dos treinadores não possuem qualquer vínculo laboral com os clubes e apenas 25% realiza a sua atividade como prestador de serviços; (h) 15,9% dos treinadores não aufere qualquer tipo de valor remuneratório mensal e 46,5% recebe entre 50 a 150 euros mensais; (i) somente 1,3% dos treinadores auferem um valor remuneratório acima dos 800 euros; (j) 34,5% dos treinadores treinam simultaneamente duas (29,4%) ou três equipas (5,1%); (k) 82,6% dos treinadores têm um emprego principal e 1,5% são estudantes; (l) 55,8% dos treinadores têm filhos, e 52,1% são casados ou estão em união de facto; (m) 54,2% dos treinadores são solteiros e não têm filhos. Em conclusão, quando correlacionadas as várias variáveis, não se verificam diferenças significativas no perfil dos treinadores da AF Leiria e AF Santarém, destacando-se em ambas as associações a quase inexistente profissionalização no desempenho desta atividade. Ser treinador no futebol de formação nestes dois distritos é, essencialmente, uma atividade de cariz voluntária.
- Do contextual factors influence running and accelerometry GPS based variables in professional women soccer players? A case study about the effect of match location and resultPublication . Oliveira, Rafael; Ceylan, Halil İbrahim; Fernandes, Renato; Morgans, Ryland; Nobari, Hadi; Nalha, Matilde; Brito, JoãoThe aims of this study were to compare external match load between home and away matches as well as the result of the match (win, draw, and loss). The secondary aim was to quantify external training load that preceded the next match taking into account both match location and result. Ten elite women soccer players participated in the study (age 24.66 ± 2.3 years). Seven home and seven away matches in which four wins, three draws, and seven losses occurred. The following global positioning system (GPS) metrics were analyzed: duration, total distance, high-speed running distance (HSR, > 15 km/h), number of accelerations (ACC) and decelerations (DEC), average speed, and player load. There were no significant differences between match results and match locations. Regarding comparisons of training data preceding different match results, only duration and player load did not differ while HSR, number of ACC and DEC showed to be higher when the next match was a loss (p < 0.05, moderate to very large effect). Regarding comparisons of training data preceding different match locations, only duration, total distance, and player load did not differ while HSR, average speed, number of ACC and DEC in all zones were higher when the next match was at home (p < 0.05, moderate to very large effect). In conclusion, this study showed that match result and location did not have a significant effect on GPS metrics exhibited during match-day. However, training data influenced the contextual factors of the next match which should be considered when planning training session.
- External load transition practices from pre-season to in-season. A case study in elite female professional soccer playersPublication . Oliveira, Rafael; Morgans, Ryland; Fernandes, Renato; Brito, João; Espada, Mário C.; Santos, Fernando J.Thestudy aim wastocomparetheexternal load during varying microcycles (M1-M4 during pre-season and M5during the in-season) in elite female Portuguese soccer players and to describe external load variations between differing Ms. Fourteen first-team players partici pated in the study (age 23.29 ± 3.19 years, weight 59.14 ± 6.87 kg, height 1.66 ± 0.08 m). Load measures included total distance, high-speed running (HSR) distance (�15 km/h), number ofaccelerations and decelerations [acceleration 1 (ACC1), >1–2 m/s; acceleration 2 (ACC2), >2–3m/s; acceleration 3 (ACC3), >3–4 m/s; acceleration 4 (ACC4), >4 m/s] and decelerations [deceleration 1 (DEC1), <1–2 m/s; deceleration 2 (DEC2), <2–3 m/s; deceler ation 3 (DEC3), <3–4 m/s; deceleration 4 (DEC4), <4 m/s]. M1 showed higher values of total distance, ACC1, ACC2, ACC3, DEC2,DEC3andDEC4thanM2(p=<0.001–0.04), although HSR washigher inM2(p<0.001). M2showedlowervalues ofHSR, ACC1, DEC1,DEC2,DEC3thanM3(p=0.001–0.04).M3reportedhigher values of total distance, ACC1,ACC2,DEC1,DEC2thanM4(p=<0.001–0.03),whileM4onlyfoundhighervalues of ACC4andDEC4thanM5(both,p=0.01).Thehighestvaluesoccurred inM3for the majority of external load metrics (except ACC3, ACC4, and DEC4 which were higher in M4). However, during the transition from M4 to M5, only ACC4 and DEC4 decreased with all other measures maintained, thus supporting the notion to maintain similar loading patterns during official competition.
- In-season body composition effects in professional women soccer playersPublication . Oliveira, Rafael; Francisco, Rúben; Brito, João; Martins, Alexandre; Fernandes, RenatoThe assessment of anthropometric and body composition variables has been considered crucial to improve soccer athletes’ performance and health. Thus, the aim of this study was to analyse the anthropometric and body composition effects in professional soccer women players
- In-season internal load and wellness variations in professional women soccer players: comparisons between playing positions and statusPublication . Fernandes, Renato; Brito, João; Vieira, Luiz; Martins, Alexandre; Clemente, Filipe; Nobari, Hadi; Reis, Victor; Oliveira, RafaelThe internal intensity monitoring in soccer has been used more in recent years in men's football, however, in women's soccer, the existing literature is still scarce. The aims of this study were threefold: (a) to describe the weekly variations of training monotony (Foster, 1998), training strain and acute:chronic workload ratio (Murray et al., 2017) through session Rated Perceived Exertion (s-RPE); (b) to describe weekly variations of Hooper Index [stress, fatigue, Delayed Onset Muscle Soreness (DOMS) and sleep] (Hooper & Mackinnon, 1995); and (c) to compare those variations between playing positions and player status. Nineteen players (24.1±2.7 years) from a Portuguese BPI League professional team participated in this study. All variables were collected in a 10-week in-season period with 3 training sessions and 1 match per week during the 2019/20 season. Considering the overall team, the results showed that there were some associations between Hooper Index categories and s-RPE like stress or fatigue (0.693, p<0.01), stress or DOMS (0.593, p<0.01), stress or s-RPE (-0.516, p<0.05) and fatigue or DOMS (0.688, p<0.01). There were no differences between all parameters in playing positions or player status. In conclusion, the study revealed that higher levels of fatigue and DOMS occurs concurrently with better nights of sleep. Moreover, any in-season variations concerning internal load and perceived wellness seems independent of position or status in outfield players. Also, the data showed that the higher the players’ reported stress, the lower the observed s-RPE, thus possible indicating a mutual interference of experienced stress levels on the assimilation of training intensity by women elite soccer players.
- In-season internal load and wellness variations in professional women soccer players: comparisons between playing positions and statusPublication . Fernandes, Renato; Brito, João; Vieira, H.L.P; Martins, Alexandre; Clemente, Filipe; Nobari, Hadi; Reis, Victor; Oliveira, RafaelThe internal intensity monitoring in soccer has been used more in recent years in men's football, however, in women's soccer, the existing literature is still scarce. The aims of this study were threefold: (a) to describe the weekly variations of training monotony (Foster, 1998), training strain and acute:chronic workload ratio (Murray et al., 2017) through session Rated Perceived Exertion (s-RPE); (b) to describe weekly variations of Hooper Index [stress, fatigue, Delayed Onset Muscle Soreness (DOMS) and sleep] (Hooper & Mackinnon, 1995); and (c) to compare those variations between playing positions and player status. Nineteen players (24.1±2.7 years) from a Portuguese BPI League professional team participated in this study. All variables were collected in a 10-week in-season period with 3 training sessions and 1 match per week during the 2019/20 season. Considering the overall team, the results showed that there were some associations between Hooper Index categories and s-RPE like stress or fatigue (0.693, p<0.01), stress or DOMS (0.593, p<0.01), stress or s-RPE (-0.516, p<0.05) and fatigue or DOMS (0.688, p<0.01). There were no differences between all parameters in playing positions or player status. In conclusion, the study revealed that higher levels of fatigue and DOMS occurs concurrently with better nights of sleep. Moreover, any in-season variations concerning internal load and perceived wellness seems independent of position or status in outfield players. Also, the data showed that the higher the players’ reported stress, the lower the observed s-RPE, thus possible indicating a mutual interference of experienced stress levels on the assimilation of training intensity by women elite soccer players.
- In-season Microcycle Quantification of Professional Women Soccer Players – External, Internal and Wellness Measures.Publication . Fernandes, Renato; Ceylan, Halil; Clemente, Filipe Manuel; Brito, João Paulo; Martins, Alexandre; Nobari, Hadi; Reis, Victor; Oliveira, RafaelAlthough there is already some knowledge about the intensity in the women's football match, the knowledge about training is still scarce. Therefore, the aim of this study was to quantify external (locomotor activity) and internal (psychophysiological) intensities, as well as the wellness profile of the typical microcycle from professional female soccer players during the 2019/20 in-season. Ten players (24.6 ± 2.3 years) from an elite Portuguese women soccer team participated in this study. All variables were collected in 87 training session and 15 matches for analysis from the 2019-20 in-season. Global positioning variables such total distance, high-speed running, acceleration, deceleration and player load were recorded as intensity while Rated Perceived Exertion (RPE) and session-RPE were recorded as internal measures. The Hooper Index (HI) was collected as a wellness parameter. The results showed that internal and external intensity measures were greater in matches compared to trainings during the week (match day minus [MD-], MD-5, MD-4, MD-2), p<0.05 with very large effect size (ES). In the same line, higher internal and external intensity values were found in the beginning of the week while the lowest values were found in MD-2 (p0.05). This study confirmed the highest intensity values during MD and the lowest on the training session before the MD (MD-2). Moreover, higher training intensities were found in the beginning of the training week sessions which were then reduced when the MD came close. Wellness parameters showed no variation when compared to intensity measures. This study confirmed the hypothesis regarding internal and external intensity but not regarding wellness.
- In-season microcycle quantification of professional women soccer players—external, internal and wellness measuresPublication . Fernandes, Renato; Ceylan, Halil İbrahim; Clemente, Filipe Manuel; Brito, João; Martins, Alexandre Duarte; Nobari, Hadi; Reis, Victor Machado; Oliveira, RafaelAlthough data currently exists pertaining to the intensity in the women’s football match, the knowledge about training is still scarce. Therefore, the aim of this study was to quantify external (locomotor activity) and internal (psychophysiological) intensities, as well as the wellness profile of the typical microcycle from professional female soccer players during the 2019/20 in-season. Ten players (24.6 ± 2.3 years) from an elite Portuguese women soccer team participated in this study. All variables were collected in 87 training session and 15 matches for analysis from the 2019–2020 in-season. Global positioning variables such total distance, high-speed running, acceleration, deceleration and player load were recorded as intensity while Rated Perceived Exertion (RPE) and session-RPE were recorded as internal measures. The Hooper Index (HI) was collected as a wellness parameter. The results showed that internal and external intensity measures were greater in matches compared to trainings during the week (match day minus [MD-], MD-5, MD-4, MD-2), p < 0.05 with very large effect size (ES). In the same line, higher internal and external intensity values were found in the beginning of the week while the lowest values were found in MD-2 (p < 0.05, with very large ES). Regarding wellness, there was no significant differences in the HI parameters between the training days and match days (p > 0.05). This study confirmed the highest intensity values during MD and the lowest on the training session before the MD (MD-2). Moreover, higher training intensities were found in the beginning of the training week sessions which were then reduced when the MD came close. Wellness parameters showed no variation when compared to intensity measures. This study confirmed the hypothesis regarding internal and external intensity but not regarding wellness.
- Perceção de fatores de risco e incidência de lesões em atividades de Via Ferrata: revisão narrativaPublication . Torres, Diana; Fernandes, Renato; Oliveira, Rafael; Brito, JoãoA via ferrata é uma forma de escalar, tendo como objetivo a ascensão ou travessia feita de forma segura com recurso a equipamentos artificiais fixados nas rochas permanentemente, dispostos de maneira quase contínua ao longo do trajeto. O objetivo desta revisão visa reunir os estudos com maior pertinência realizados até ao momento na área das vias ferratas que abordem o conhecimento do risco e a perceção dos fatores por parte dos praticantes, como também, a ocorrência de acidentes que originam lesões e os seus possíveis mecanismos. O desenho metodológico utilizado na revisão foi de acordo com o método Preferred Reporting Items for Systematic Reviews and Meta Analysis (PRISMA). A pesquisa foi realizada a partir das palavras-chave ‘’via ferrata’’, “climbing”, ‘’injury’’ e “risk factors” na plataforma da B-On, tendo em conta os critérios de inclusão e exclusão para elegibilidade. Na revisão, destaca-se 2 artigos que abordam os modelos de absorção e os protocolos de teste para verificação dos dissipadores; 2 artigos que investigam a partir de questionários o conhecimento do risco na relação com a performance, como também, os comportamentos de risco durante as atividades; 1 artigo que relata a ocorrência de acidentes e/ou emergências médicas, com e sem ocorrência de lesões e os mecanismos que proporcionaram o acontecimento. As atividades de via ferrata estão em crescimento e consequentemente, torna-se evidente a necessidade de investigar esta nova forma de escalar. Contudo, continua a ser uma temática difícil de abordar, visto que os registos desta atividade recreativa e autónoma, ainda não são devidamente controlados por uma entidade.
- The effects of pre-season and relationships with physical, physiological, body composition, and load markers: a case study comparing starters versus non-starters from an elite female professional soccer teamPublication . Oliveira, Rafael; Brito, João Paulo; Fernandes, Renato; Morgans, Ryland; Alves, Susana; Santos, Fernando J.; Pinto, Paula; Espada, Mário C.Background and Objectives: Research on female soccer players that analyzes playing status is scarce and has previously only examined load monitoring, while other markers, such as physical (i.e., strength, power, and agility), physiological (i.e., maximal oxygen uptake), and body composition (i.e., body fat mass, fat-free mass, body water, and phase angle) markers, warrant further investigation. Thus, the study aims were to (a) compare physical, physiological, body composition, and load markers between starters and non-starters; (b) compare measurements pre- and post-training intervention (five weeks); and (c) analyze any relationships between physical, physiological, body composition, and load markers in an elite female soccer team. Materials and Methods: Fourteen first-team players participated in the study (age 23.29 ± 3.19 years, weight 59.14 ± 6.87 kg, height 1.66 ± 0.08 m). Several physical (n = 15), physiological (n = 1), body composition (n = 11), and load markers (n = 14) were collected. In addition, participants were sub-divided into starters (n = 7) and non-starters (n = 7). Results: No differences were revealed between starters and non-starters in any of the examined variables. Moreover, following the training intervention, a significantly lower value was found for total body water/fat-free mass ratio (p = 0.043; ES = 0.582). In addition, there were several correlations detected between load and physical/physiological markers (n = 28); load and body composition markers (n = 6); physical/physiological and body composition markers (n = 34); and physical and physiological markers (n = 42). Conclusions: In conclusion, only a slight tendency of higher load values for starters than non-starters was observed. In addition, no differences in physical, physiological, and body composition markers were found between starters and non-starters, possibly suggesting that five weeks were not enough to improve such variables. Finally, the present results provide novel information assessing the effects of the pre-season in elite female Portuguese soccer players and contribute to a better understanding of the associations between different types of measurements.