Key somatic variables associated with,and differences between the 4 swimming strokes     

Alan M. Nevill  Yassine Negra  Tony D. Myers  Senda Sammoud  Helmi Chaabene 《Journal of sports sciences》2020,38(7):787-794

ABSTRACT

This study identified key somatic and demographic characteristics that benefit all swimmers and, at the same time, identified further characteristics that benefit only specific swimming strokes. Three hundred sixty-three competitive-level swimmers (male [n = 202]; female [n = 161]) participated in the study. We adopted a multiplicative, allometric regression model to identify the key characteristics associated with 100 m swimming speeds (controlling for age). The model was refined using backward elimination. Characteristics that benefited some but not all strokes were identified by introducing stroke-by-predictor variable interactions. The regression analysis revealed 7 “common” characteristics that benefited all swimmers suggesting that all swimmers benefit from having less body fat, broad shoulders and hips, a greater arm span (but shorter lower arms) and greater forearm girths with smaller relaxed arm girths. The 4 stroke-specific characteristics reveal that backstroke swimmers benefit from longer backs, a finding that can be likened to boats with longer hulls also travel faster through the water. Other stroke-by-predictor variable interactions (taken together) identified that butterfly swimmers are characterized by greater muscularity in the lower legs. These results highlight the importance of considering somatic and demographic characteristics of young swimmers for talent identification purposes (i.e., to ensure that swimmers realize their most appropriate strokes).  相似文献   

2CUL Slavic: The View So Far     

Robert Davis 《Slavic & East European Information Resources》2017,18(1-2):67-73

In fall 2016, the Columbia-Cornell collaboration in the area of Slavic & East European resource coordination and sharing celebrated its sixth year. The author reviews particulars of the development, implementation, and function of this program as well as some of the challenges that face such cross-institutional efforts.  相似文献   

我们该怎样做研究——对课程与教学论主流研究范式的反思     

马勇军 《课程.教材.教法》2011,(7)

重理论思辨、轻实践研究,研究方法简单粗糙,是当前课程与教学论主流研究范式的两大缺陷。欠缺科学精神、方法意识薄弱、评价机制不健全,是造成当前主流研究范式缺陷的主要原因。基于此,应从六个方面改善课程与教学论主流研究范式:关注对实践问题的微观研究和行动研究;加强方法意识,融入科学精神;建立课程与教学论的方法论体系;转变研究思维方式;改善现有评价体系;加强研究生培养过程中方法意识的培养和方法训练。  相似文献   

“我心目中的好课堂”——来自孩子心灵的呼声     

蔡文艺 《江苏教育研究》2011,(1):36-39

对于什么样的＂课＂是＂好课＂,历来有多种说法,可谓仁者见仁,智者见智。然而,这些所谓＂好课标准＂都是成人所构建的。课堂生活是孩子们经历最多、体验最深的一种生活方式。教育现象学研究要求关注教育情境中师生的＂生活体验（世界）＂,关注教育的实际发生领域,关注生活的意义。由此,本研究旨在用教育现象学的方式倾听孩子们内心的声音,用描述性的语言勾勒出孩子们心目中的＂好课堂＂。  相似文献   

Creative Potential within Policy: An Analysis of the 2013 English Literature Curriculum     

Megan Mansworth 《English in Education》2016,50(2):116-129

This article takes as its focus Lefebvre's trialectic of conceived, perceived and lived spaces as a lens through which to scrutinise the 2013 English Literature Curriculum, and to explore the extent to which creative spaces might exist within that curriculum. The article analyses how the curriculum is envisaged by policymakers and how it might be expected to be translated into practice, utilising the wording of the policy document to facilitate an exploration of what its underlying intentions might be. The author's experience of teaching a poem from the new curriculum is used in order to provide illustrative examples of the ways in which teachers’ and learners’ experiences of the curriculum might, in practice, diverge from the direction envisaged by policymakers as teachers negotiate creative spaces within their classrooms.  相似文献   

基于工作过程导向的高职课程改革——以高职环境类专业《水污染控制技术》课程为例     

樊开青  汤锦如 《职业技术教育》2011,32(26)

以工作过程为导向进行高职课程改革,关键在于根据工作实境创设学习情境,并依据学习情境整合课程内容,改善教学方法,实现理实一体化.在高职环境类专业《水污染控制技术》课程改革中,针对特定的学习目标,在对工作岗位和行动能力分析的基础上形成课程体系,并按照岗位工作过程合理设置和序化教学内容,同时综合运用多种教学手段和方法,有效提升学生的专业技能和综合素质.  相似文献   

论建构主义理念下的藏汉双语课程     

才让措 《青海师范大学学报(哲学社会科学版)》2004,(6):123-126

本文从建构主义课程观的视角,分析了目前藏族教育中藏汉双语课程所存在的不足,并就构筑建构主义的藏汉双语课程阐述了自己的观点,认为藏族学生是建构藏汉双语课程的主体者;双语教师是学生主动建构意义的帮助者、促进者;社群中的相关人士在藏汉双语课程中起着不可低估的"话语"作用。在藏汉双语课程的教学中应努力发挥以上三方面作用,并使之形成合力,探索出一条行之有效的教学模式。  相似文献   

化学实验教学中的探究教学   总被引：2，自引：0，他引：2  

陈秀娟 《唐山师范学院学报》2007,29(2):120-121

通过教学实例分析了化学实验探究教学的一般步骤,指出了实际教学过程中应注意的问题。  相似文献   

浅析研究性教学在高校教学中的运用   总被引：18，自引：0，他引：18  

姜芳  杨晋明 《教育与现代化》2004,(1):13-16,37

本文分析了当前课程教学中存在的主要认识误区；从研究教育理论的发展入手，归纳出研究性教学的基本理念；阐述了开展研究性教学应注重把握的目标和特点；对研究性教学实施过程中的类型与阶段划分、评价体系与指标的建立等均进行了相应的探讨。  相似文献   

课程观的嬗变与教研文化重建管窥     

张建国 《太原大学教育学院学报》2007,25(3):33-37

教研文化滞后的根源之一在于对课程本质的误读。当代对课程认识的不断深化,要求重新审视“适应型”教研,构建开放、创生的教研新文化。其基本策略是制度的开放性、管理的人本化、教研的校本型,以及和谐舆论支持氛围。  相似文献