Analysis of foot strike pattern,rearfoot dynamic and foot rotation over childhood. A cross-sectional study     

Pedro Ángel Latorre Román  Fernando Redondo Balboa  Juan Párraga Montilla  Víctor Manuel Soto Hermoso  Pedro José Consuegra González  Felipe García Pinillos 《Journal of sports sciences》2019,37(5):477-483

The purpose of this study was to determine the foot strike patterns (FSP), rearfoot position at initial contact (RPic, i.e., No INV/EVE) and foot rotation in children in relation to age. A total of 932 children aged 3 to 16 years participated in this study. A sagittal and frontal-plane video was recorded using a high-speed camcorder to analyse these variables. There is a significant increase (p < 0.001) of rearfoot strike patterns (RFS) prevalence in relation to age; e.g. preschool children (3–6 years old) displayed an RFS prevalence 46.65% and the adolescent population(15–16 years old) an RFS prevalence 92.20%. The total RFS prevalence in all samples was 69.25%. There was a significant reduction (p < 0.001) of prevalence of RPic in relation to age groups; preschool children displayed a prevalence of RPic 60.37% and the adolescent population 10%. There was a significant reduction (p < 0.001) of prevalence of no foot rotation in relation to age groups; preschool children displayed a prevalence of no foot rotation 48.95% and the adolescent population 13.55%. In conclusion, FSP in children are influenced by age. It is noteworthy that the RFS prevalence of children is lower in comparison to the adult population.  相似文献   

Aerobic fitness and academic achievement: A systematic review and meta-analysis     

Celia Álvarez-Bueno  Charles H Hillman  Mairena Sánchez-López  Diana P. Pozuelo-Carrascosa  Vicente Martínez-Vizcaíno 《Journal of sports sciences》2020,38(5):582-589

ABSTRACT

This study aims to quantify the association between aerobic fitness and academic achievement, and determine how different aerobic fitness tests and individual demographic characteristics may modify this association. It includes 41 cross-sectional and 7 longitudinal studies focusing on children and adolescents, from MEDLINE, EMBASE, Cochrane Central Register of Controlled Trials, Cochrane Database and Web of Science. Pooled effect sizes (ES) were estimated for the association between aerobic fitness and specific domains of academic achievement. Subgroup analyses and meta-regressions were based on aerobic fitness tests and demographic characteristics. The ES for the association between aerobic fitness with language/reading-skills, mathematics-related skills and composite scores, were 0.23 (95% CI: 0.12; 0.34); 0.27 (95% CI: 0.19; 0.36) and 0.28 (95% CI: 0.12; 0.45), respectively. Subgroup analyses by aerobic fitness test modified these associations; additionally, analyses by sex or age showed differences between boys and girls as well as between children and adolescents. Finally, meta-regressions revealed a slight effect of body mass index on these associations. Cardiorespiratory fitness is positively associated with academic achievement. Associations were dependent on demographic and aerobic fitness test characteristics, being stronger in boys than in girls, and in children than in adolescents.

Systematic review registration: PROSPERO CRD42017069677  相似文献   

Influence of football match time–motion parameters on recovery time course of muscle damage and jump ability     

Moisés de Hoyo  Daniel Dylan Cohen  Borja Sañudo  Luis Carrasco  Alejandro Álvarez-Mesa  Juan José del Ojo 《Journal of sports sciences》2016,34(14):1363-1370

ABSTRACT

We analysed the time course of recovery of creatine kinase (CK) and countermovement jump (CMJ) parameters after a football match, and correlations between changes in these variables and match time–motion parameters (GPS-accelerometry) in 15 U-19 elite male players. Plasma CK and CMJ height (CMJ_H), average concentric force (CMJ_CON) and average eccentric force (CMJ_ECC) were assessed 2 h before and 30 min, 24 h and 48 h post-match. There were substantially higher CK levels 30 min, 24 h and 48 h (ES: 0.43, 0.62, 0.40, respectively), post-match. CMJ_ECC (ES: ?0.38), CMJ_H (ES: ?0.35) decreased 30 min post, CMJ_CON (ES: ?0.35), CMJ_ECC (ES: ?0.35) and CMJ_H (ES: ?1.35) decreased 24 h post, and CMJ_CON (ES: ?0.41) and CMJ_H (ES: ?0.53) decreased 48 h post. We found correlations between distance covered at velocities ≤21 km · h^?1 and changes in CK at 24 h (r = 0.56) and at 48 h (r = 0.54) and correlations between CK and distance covered >14 km · h^?1 (r = 0.50), accelerations (r = 0.48), and decelerations (r = 0.58) at 48 h. Changes in CMJ_CON 30 min and 24 h post (both r = ?0.68) correlated with impacts >7.1·G. Decelerations >2 m · s^?2 correlated with changes CMJ_CON (r = ?0.49) at 48 h and CMJ_ECC (r = ?0.47) at 30 min. Our results suggest that match GPS-accelerometry parameters may predict muscle damage and changes in components of neuromuscular performance immediately and 24–48 h post-match.  相似文献   

What counts as science? Expansive learning actions for teaching and learning science with bilingual children     

Martínez-Álvarez  Patricia 《Cultural Studies of Science Education》2019,14(4):799-837

Cultural Studies of Science Education - Science education should help children acquire sophisticated understandings about science, how it is done, and how they can be scientists. Consequently,...  相似文献   

Moral Education and Literature: On Cora Diamond and Eimear McBride          下载免费PDF全文

ÁINE MAHON 《Journal of Philosophy of Education》2017,51(1):102-113

I argue in this paper for the rich and subtle connections between moral philosophy and literature as they are articulated and explored in the work of the contemporary American philosopher, Cora Diamond. In its significance for broader educational debates—specifically, debates regarding the value of the arts and humanities in a context of global economic collapse—Diamond's work is strikingly original. I argue that it offers much more to educators than the related work of her Anglo‐American contemporaries, among them Martha Nussbaum and Richard Rorty. In development of my position, I read Diamond's 2008 essay, The Difficulty of Reality and the Difficulty of Philosophy, withA Girl is a Half‐formed Thing, the debut novel of Irish writer Eimear McBride.  相似文献   

Reviewing the functions of local education committees     

Áine Hyland 《Irish Educational Studies》2013,32(1):292-295

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The core musculature in male prepubescent tennis players and untrained counterparts: a volumetric MRI study     

Joaquin Sanchis-Moysi  Fernando Idoate  David Álamo-Arce  José A.L. Calbet  Cecilia Dorado 《Journal of sports sciences》2017,35(8):791-797

The effects of exercise on the core musculature have not been investigated in prepubescents. The main purpose of the present study was to determine the volume and degree of asymmetry of rectus abdominis, obliques and transversus abdominis, quadratus lumborum, iliopsoas, gluteus and paravertebralis muscles in prepubescent tennis players and in untrained boys. The muscle volume was determined using magnetic resonance imaging (MRI) in 7 male prepubescent tennis players and 10 untrained controls (mean age 11.0 ± 0.8 years, Tanner 1–2). After accounting for height and body weight as covariates, the tennis players had 14–34% greater volume than the controls in all the muscles analysed (P < 0.05) except in paravertebralis, dominant quadratus lumborum and non-dominant gluteus, which had similar volumes in both groups (P = NS). Compared to controls, the tennis players displayed a greater degree of asymmetry in quadratus lumborum and rectus abdominis (3% vs. 15%, P < 0.01 and 8% vs. 17%, P = 0.06, respectively). The level of asymmetry of obliques and transversus abdominis, iliopsoas, gluteus and paravertebralis muscles was similar in both groups (P = NS). In conclusion, tennis playing at prepubertal ages induces a selective hypertrophy of the core musculature and exaggerates the degree of asymmetry of quadratus lumborum and rectus abdominis compared to untrained boys.  相似文献   

Models of incareer development in the republic of Ireland: An analysis     

Áine Hyland  Joan Hanafin 《Irish Educational Studies》2013,32(1):144-172

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Language teacher education for intercultural understanding     

Cecilia Garrido  Inma Álvarez 《欧洲师范教育杂志》2006,29(2):163-179

Over recent decades language teaching and learning has undergone a redefinition of the subject and a rapid change in its methodology. Language programmes can now be delivered in technology‐based environments and communication at an international level can be a daily occurrence. This paper on the one hand analyses how these developments have extended and challenged the traditional roles and responsibilities of language teachers. On the other, it examines to what extent established models of language teacher education acknowledge and address the needs of language teachers today, in particular in relation to the integration of the intercultural dimension into language teaching and learning.

Au cours des récentes décennies l'enseignement–apprentissage des langues s'est vu redéfini et a connu une rapide évolution en matière de méthodologie. On peut aujourd'hui délivrer les cursus de langue par le moyen d'environnements technologiques, et il est devenu banal de communiquer internationalement de cette façon. Dans la présente étude nous cherchons d'une part à cerner les défis que présente cette évolution pour les rôles et responsabilités traditionnels des enseignants de langue. D'autre part nous demandons dans quelle mesure les modèles en vigueur en matière de formation des enseignants reconnaissent les nouveaux besoins de ceux‐ci, notamment en ce qui concerne l'intégration de la dimension interculturelle dans leur pratique.

Im Bereich Sprachenlehren und lernen haben sich in den letzten Jahrzehnten grundlegende Veränderungen ergeben, vor allem im Hinblick auf Methodologie. Sprachkurse können jetzt per Computer zu den Adressaten gebracht werden und Kommunikation über Grenzen hinweg wird potentiell zum alltäglichen Ereignis. Hier soll untersucht werden inwieweit diese Entwicklungen die traditionelle Rolle und den Verantwortungsbereich von Sprachenlehrer/innen erweitert und verändert haben. Darüberhinaus wird überprüft inwieweit die herkömmliche Ausbildung der Sprachenlehrer/innen den heutigen Anforderungen gerecht wird, vor allem im Hinblick auf die interkulturelle Dimension des Lehren und Lernens von Fremd‐ und Zweitsprachen.

En las últimas décadas la enseñanza y el aprendizaje de las lenguas ha pasado por una redefinición de su contenido y un rápido cambio en su metodología. Los programas de estudios se pueden realizar en entornos basados en las nuevas tecnologías y la comunicación a nivel internacional puede darse a diario. Este artículo de una parte analiza de qué manera estos cambios han ampliado y desafiado los papeles y las responsabilidades que los profesores de lenguas han tenido tradicionalmente. De otra parte, examina hasta qué punto los modelos que se han venido utilizando para la formación de profesores de idiomas reconocen y suplen sus necesidades en la actualidad, en particular en lo que se refiere a la integración de la dimensión intercultural en la enseñanza y el aprendizaje de las lenguas.  相似文献   

Research and the Universities’ Image     

RUI SANTIAGO  TERESA CARVALHO  ROSÁRIO RELVA 《European Journal of Education》2008,43(4):495-512

Traditionally, and from a Humboltian perspective, research was conceived as an important part of the tripartite mission of universities, with teaching and services to the community being the other two. The traditional idea of universities as cultural and social institutions is increasingly being replaced by another: the entrepreneurial, capitalist or, even, industrial university. In the new university, research also changes in line with the economic instrumentality of higher education. In this article, we shall analyse if these new ideas were institutionalised in Portuguese public universities. To do this, we analyse the way in which research is signified in communication processes by analysing the content of universities' websites. In the main webpages, the dominant implicit social meaning of research seems to be a traditional one. However, a more specific analysis reveals the presence of entrepreneurial elements. In Portuguese public universities, creating and commercialising intellectual property could be an institutional objective, but it was not used in the web communication as such. One could say that, despite the New Public Management influences on universities, the idea of research as an entrepreneurial issue was not yet completely institutionalised and, consequently, communication tools such as websites showed hybrid meanings of research.  相似文献