Physiological determinants of elite mountain bike cross-country Olympic performance

Detailed physiological phenotyping was hypothesized to have predictive value for Olympic distance cross-country mountain bike (XCO-MTB) performance. Additionally, mean (MPO) and peak power output (PPO) in 4 × 30 s all-out sprinting separated by 1 min was hypothesized as a simple measure with predictive value for XCO-MTB performance. Parameters indicative of body composition, cardiovascular function, power and strength were determined and related to XCO-MTB national championship performance (n = 11). Multiple linear regression demonstrated 98% of the variance (P < 0.001) in XCO-MTB performance (t_XCO-MTB; [min]) is explained by maximal oxygen uptake relative to body mass (VO_2peak,rel; [ml/kg/min]), 30 s all-out fatigue resistance (FI; [%]) and with a minor contribution from quadriceps femoris maximal torque (T_max; [Nm]): t_XCO-MTB = ?0.217× VO_2peak,rel.–0.201× FI+ 0.012× T_max+ 85.4. Parameters with no additional predictive value included hemoglobin mass, leg peak blood flow, femoral artery diameter, knee-extensor peak workload, jump height, quadriceps femoris maximal voluntary contraction force and rate of force development. Additionally, multiple linear regression demonstrated parameters obtained from 4x30s repeated sprinting explained 88% of XCO-MTB variance (P < 0.001) with t_XCO-MTB = ?5.7× MPO+ 5.0× PPO+ 55.9. In conclusion, XCO-MTB performance is predictable from VO_2peak,rel and 30 s all-out fatigue resistance. Additionally, power variables from a repeated sprint test provides a cost-effective way of monitoring athletes XCO-MTB performance.     

内涵、领域和特征:体育价值观研究进展

体育价值观与体育本质、功能、目的之间关系密切,是以体育应然作为问题研究主线。目前我国体育价值观理论研究缺乏系统性梳理,故通过文献资料法,对体育价值观的内涵层次、领域体系、特征分析三大方面进行梳理。认为:(1)体育价值观内涵探讨主要围绕主体和主客体两个层面,从功能论角度定义体育价值观为一种社会效应或道德情感;(2)体育价值观的领域体系研究在宏观层面表现为"工具与手段"的理性探讨,在微观层面表现为体育价值观的多元与复合及多维与统合;(3)体育价值观特征具有选择性和导向性、相对稳定性和历史流变性、中西方体育价值观特征的个性和共性及逻辑系统性。     

基于共词分析的我国公共体育服务供给研究述评

以《中国学术期刊（网络版）》数据库收录的我国公共体育服务供给领域文献为研究对象,采用共词分析法,结合Bicomb2.0书目共现分析软件生成共词矩阵,通过Ucinet6.0软件的NetDraw工具绘制高频关键词可视化图谱,分析该领域研究的热点分布;并利用SPSS软件的聚类分析和多维尺度分析对研究热点进行主题分类,共得到4个热点主题群。对热点主题进行分析,总结出我国公共体育服务供给领域研究核心问题及发展现状。     

指向主动学习的大学英语校本翻转课堂新模式——以福建某高校大学英语教学改革为例

大学英语翻转课堂模式的构建应考虑地方院校校本化需求以及大学英语教学长期以来对主动学习的关注.在诸多关于翻转课堂的研究中,翻转课堂与主动学习之间的关系尚未得到足够重视.立足校本实际,探究由交互式教学环境、差异化教学内容、合作式学习活动和多元化学习评价四个要素构建而成的大学英语翻转课堂新模式,并以新模式下翻转课堂的教学组织...     

多维焦虑理论的构建及其在运动训练中的应用

综述了近年来运动心理学界对焦虑问题研究的主要成果,阐述了焦虑的三维度理论,即焦虑的强度、焦虑的方向性及焦虑的频率,并提出了在此理论模式下,焦虑理论在运动训练领域的应用前景。     

对数线性模型的统计信息功能

通过一个四维列联表算例研究了对数线性模型在统计分析中的信息功能．结果表明：对数线性模型可通过拟合优度统计检验发现多维分类变量中存在的统计独立关系;可通过参数估计分别针对列联表的每一个组格回答各个单个变量以及2个、3个、4个变量的各种交互对形成该组格概率的贡献;无法提供变量间统计相依程度强弱的信息．     

护理人员职能的扩展与角色的多方位

整体护理扩展了护理人员的职能与多方位角色,它要求护理人员一方面要具备系统的专业知识和娴熟的操作技能,另一方面要不断拓宽综合学识,同时需要护理人员处理好护患关系和医护关系,此外,护理道德及理念是护理人员职能扩展与角色多方位的重要保障因素。     

International school partnerships as a vehicle for global education: student perspectives

The UK government has recently demonstrated an unprecedented interest in global learning within primary and secondary schools. While the adoption and implementation of the global dimension varies, international school partnerships (ISPs) have been identified as a key vehicle for harnessing the potential of the global dimension in schools. Despite increasing global policy and practice interest in ISPs, little empirical research examines the influence of ISPs on students, teachers and leaders. Drawing on evidence nested in our 3-year research and development study of the British Council's Connecting Classrooms-Sub Saharan Africa programme, this paper examines students' own view of their international school partnership participation. We employ a multidimensional citizenship framework to frame our analysis of 694 student surveys from 66 schools across 12 countries. Based on this evidence, we argue that the influence of ISPs on global learning can be enhanced by intentionally designing partnerships to: celebrate school-based learning linked to international partners; create opportunities for students to engage in activity-based communication-driven ISP related learning; and, deliberately encourage students to discuss their partnership work with friends and family. We also make recommendations for policy and practice leaders and researchers.     

刍议多维视野中的高校德育创新取向

德育,归根到底应该是一种开放的德育,是一种与时俱进、发展创新的德育。为此,高校德育需要紧扣时代主题,适应国际化进程,强化问题意识,大胆探索实践,坚持把实践探索与理论提升紧密结合、相互促进,不断创新多维视野下高校德育的思路、理念、路径,努力提升高校大德育的实效性。     

和谐社会背景下我国体育赌博的多维审视

体育赌博具有深刻的社会、行业背景及复杂的特点,有效防治是困扰全球的难题,应该引起社会的高度重视。体育赌博是一种违背伦理学、哲学、心理学、法理学、社会学的行为,应该引起社会的高度重视．体育赌博在我国古代就较为盛行,随着时间的推移,体育赌博在我国的表现形式有所改变。体育赌博将会对我国社会主义和谐社会的构建带来巨大的危害。正确认识体育赌博的危害,将会时个人和社会的和谐发展起到积极作用。