Marcelo Braz

Dr. Marcelo Braz

University of Barcelona, Barcelona, Catalonia, Spain
orcid

Research Focus & Metrics

Academic Career Length

16Years (2011-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 April 2017 in Serviço Social & Sociedade
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Journal Article
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MBMarcelo Braz
Marcelo Braz
Discutimos a crise brasileira e o processo político que levou à ascensão de um conservadorismo reacionário e ao impeachment de Dilma Rousseff. Procuramos mostrar de que forma as personagens centrais da conjuntura encarnam interesses reais de classes, especialmente aqueles vinculados ao capital financeiro e a seus agentes internos, bem como oferecer elementos para que o leitor entenda os limites da democracia no Brasil e os resultados da política de conciliação de classes em nosso país.

24 July 2016 in European Physical Education Review
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Journal Article
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TLTeresa Lleixà
Teresa Lleixà
CGCarles González-Arévalo
Carles González-Arévalo
MBMarcelo Braz
Marcelo Braz
In 2006, the European Union published its recommendations on competences for lifelong learning. Since then, key competences have been integrated into the official curriculum in Spain. The objectives of the present study are: a) to describe the strategies used most frequently by physical education teachers to incorporate key competences in their programmes; and b) to identify the profiles of teachers and schools that promote the inclusion of key competences in their physical education programmes. Data were collected via a questionnaire administered to a sample of 2051 physical education teachers in primary and secondary schools in Spain. The results show that while teachers include key competences in their programmes, they do not usually do so explicitly. The competences most frequently included are: social and citizenship skills; autonomy and personal initiative; learning to learn; and knowledge of, and interaction with, the physical world. To develop these competences, lesson plans often aim to integrate knowledge, skills and attitudes, apply problem-solving approaches, and foster the transfer of learning to everyday life. The lack of interdisciplinarity emerges as a negative aspect. Factors favouring the inclusion of competences are the provision of competence-based training for teachers and the presence of a coordination system for dealing with competences in the school. The conclusion drawn is that merely including key competences in the official curriculum is not enough; reinforcement and correction of all the aspects mentioned are essential to ensure that adequate attention is paid to competences in physical education programmes.

1 January 2016 in Revista Internacional de Medicina y Ciencias de la Actividad Física y del Deporte
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MTMiguel Angel Torralba
Miguel Angel Torralba
MBMarcelo Braz
Marcelo Braz
TLT. Lleixà
T. Lleixà
JGJose Gorla
Jose Gorla
El presente estudio tiene por objetivo valorar la coordinación motora de estudiantes de primaria de Barcelona y provincia. Para la evaluación se ha utilizado el test KTK en el que participaron 1254 personas, 670 niños y 584 niñas, de edades entre 7 y 10 años. Se realizó el análisis descriptivo y la comparación entre género y edad. Los resultados indican que más del 40% de la población estudiada presenta una coordinación por debajo de la normalidad, cerca de un 57% de la muestra fue clasificado con coordinación normal y solamente el 4,6% lo ha sido por encima de esta clasificación. Los chicos han presentado resultados significativamente mejores que las chicas. Los datos del estudio no permiten generalizar los resultados, sin embargo como es una muestra representativa, nos lleva a creer que la población de alumnos en educación primaria de Barcelona y su provincia tiene un nivel coordinativo por debajo del esperado para su edad. PALABRAS CLAVE: Evaluación; Coordinación motora; Test KTK; Educación primaria; Barcelona. ABSTRACT The present study aims to assess motor coordination of primary-school students of Barcelona and its province. For evaluation we used the KTK test. 1254 people, 670 boys and 584 girls with ages between 7 and 10 years participated in the study. Descriptive analysis and the comparison between gender and age were performed. The results indicate that about 40% of the population studied presents results below normal, around 57% were classified with normal coordination and only 4.6% has been above this rating. The boys have presented significantly better results than girls. The study data do not permit to generalize the results, however as a representative sample, it leads us to believe that the student population in elementary education from Barcelona and its province has a coordinative level below expected for their age. KEY WORDS: Assessment; Motor coordination; KTK Test; Primary education; Barcelona.

27 March 2023 in Retos
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GOGlauber Lameira Oliveira
Glauber Lameira Oliveira
TOTalita Adão Perini Oliveira
Talita Adão Perini Oliveira
MBMarcelo Braz
Marcelo Braz
JGJose Gorla
Jose Gorla
JFJosé Fernandes Filho
José Fernandes Filho
El objetivo de este estudio fue analizary comparar la composición corporal y el somatotipo de atletas ciegos de fútbol 5 de alto rendimiento de diferentes posiciones de juego. Participaron de esta investigación 63 atletas (28,0±5,8años) de diferentes equipos masculinos defútbol5 de alto rendimiento. Los atletas fueron sometidos a una evaluación antropométrica a fin de para obtener las medidas: espesor de pliegues cutáneos, perímetros corporales, diámetros óseos, estatura y masa corporal total. A partir de estas medidas fueron calculados los siguientes parámetros: porcentaje de grasa corporal y porcentaje de masa magra, Σ de 9 pliegues cutáneos, índice de masa corporal y somatotipo. Los jugadores Alas presentaron valores inferiores en porcentaje de grasa (%G=17,4%) en comparación con los atletas Cierre (23,1%) y Pivot (21,5%), ambos con diferencia significativa (p<0,05). Se obtuvo un perfil somatotpio meso-endomorfo con predominancia del componente muscular, tanto para el grupo general como separadamente por posiciones de juego. El conocimiento de la composición corporal y del somatotipo de estos atletas de fútbol5 podrá contribuir hacia la orientación y el monitoreo de entrenamientos, favoreciendo el rendimiento deportivo. Palabras Clave: Discapacidad visual; Atletas paralímpicos; Somatotipo; Antropometría, Fútbol 5. The aim of this study was to analyze and compare the body composition and the somatotype of blind athletes of 5-a-side football of high-performance in different positions in play. Participated in this research 63 blind athletes (28.0 ± 5.8 years) from male of teams of 5-a-side football of high-performance.The athletes underwent an anthropometric evaluation to obtain the following measurements: skinfold thickness, body perimeters, bone diameters, height and total body mass. From these measurements, the following parameters were calculated: body fat percentage, lean mass percentage, Σ of the 9 skinfolds, body mass index and somatotype. Wing athletes showed a significant difference (p <0.05) with lower values ​​for % G (17.4%) compared to fixed athletes (23.1%) and pivots (21.5%). A meso-endomorphic somatotype profile was obtained, with a predominance of the muscular component in the team and in all positions in play. The knowledge of body composition and somatotype of these blind athletes of 5-a-side footballcan contribute to guidance and monitoring of training, favoring sports performance. Key words: Visual impairment; Paralympic athletes; Somatotype; Anthropometry, Five-a-side football.

30 June 2017 in Apunts Educación Física y Deportes
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Journal Article
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TATeresa Lleixà Arribas
Teresa Lleixà Arribas
CACarles González Arévalo
Carles González Arévalo
MHMeritxell Monguillot Hernando
Meritxell Monguillot Hernando
GDGabriel GD Daza
Gabriel GD Daza
MBMarcelo Braz
Marcelo Braz

1 January 2020 in Revista Ciencias de la Actividad Física
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Journal Article
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JCJordi Calvo
Jordi Calvo
MFMarisa de Fuentes
Marisa de Fuentes
MTMiguel Angel Torralba
Miguel Angel Torralba
MBMarcelo Braz
Marcelo Braz
The present study sought to identify the differences observed in sprint races conducted by Paralympic athletes classified in different categories. The study sample consisted of 133 runs of 100m sprint race conducted by athletes in the semifinal and final stages of the 2014 International Paralympic Committee Athletics European Championships, in Swansea (Wales, UK), where 24 countries participated. The temporal variables mark (s) and average step time (s), the spatial variables number of steps and average step length (m), and the temporal space variables average speed (m/s) and average frequency (Hz) were assessed. A comparative study between the different categories and gender has been carried out. The data was collected from the recordings available on the championship website, was processed with the SPSS statistical package (V.22.0). Among the results, it is necessary to emphasize the importance of the step length and the average frequency. En este trabajo se ha pretendido analizar las diferencias que se observan en las carreras de velocidad realizadas por atletas paralímpicos clasificados en diferentes categorías. La muestra del estudio consistió en 133 carreras de 100 metros efectuadas por atletas en las fases semifinales y finales del Campeonato Europeo de Atletismo del Comité Paralímpico Internacional en Swansea (Wales, UK) 2014, donde participaron 24 países. Se valoraron las variables temporales marca (s) y tiempo medio de paso (s), las variables espaciales número de pasos y amplitud media de paso (m), y las variables espacio temporal velocidad media (m/s) y frecuencia media (Hz). Se hizo un estudio comparativo entre las diferentes categorías y género. Los datos se recogieron de las grabaciones disponibles en la web del campeonato y fueron tratados con el paquete estadístico SPSS (V.22.0). Entre los resultados hay que destacar la importancia que tienen la amplitud de paso y la frecuencia media. O presente estudo buscou identificar as diferenças que se observam nas corridas de velocidade realizadas pelos atletas paralímpicos de diferentes categorias. A amostra do estudo consistiu-se em 133 provas de 100 metros realizadas por atletas nas fases semifinal e final do Campeonato Europeu de Atletismo do Comitê Paralímpico Internacional em Swansea (Wales, Reino Unido) 2014, onde participaram 24 países. Foram analisadas as variáveis temporais marca (s) e tempo médio do passo (s), as variáveis espaciais número de passos e amplitude média do passo (m) e as variáveis espaço temporal velocidade média (m/s) e frequência média (Hz). Reali-zou-se um estudo comparativo entre as diferentes categorias, com distinção de gênero. Para o estudo foram utilizadas as gravações disponíveis na página web do campeonato e os dados foram tratados com o pacote estatístico SPSS (V.22.0). Entre os resultados encontrados se destacam a importância que tem a amplitude do passo e a frequência média..