The influence of self-determination in physical education on leisure-time physical activity behavior

Using a multitheory approach, this study was designed to investigate the influence of urban adolescents' perceived autonomy and competence in physical education on their physical activity intentions and behaviors during leisure time. A transcontextual model was hypothesized and tested. Urban adolescents (N=653, ages 11-15 years) completed questionnaires assessing relevant psychological constructs and moderate to vigorous physical activity and then had their cardiorespiratory fitness assessed with the Progressive Aerobic Cardiovascular Endurance Run (PACER) test. Based on our structural equation modeling analyses and fit indexes, the transcontextual model adequately fit the data. We concluded that the two theoretical frameworks--SDT and theory of planned behavior--can be integrated to provide an enhanced understanding of the influence of physical education on leisure-time physical activity. The results revealed that perceived autonomy and competence in physical education are interrelated and function as a whole for enhancing leisure-time physically active intentions and behavior.     

2008年澳网男单半决赛、决赛德约科维奇技战术统计分析与研究

运用录像分析法,摄录2008年澳大利亚网球公开赛德约科维奇半决赛、决赛的全过程,在慢放状态下逐局、逐分、逐板地观看、记录,对德约科维奇技战术运用进行统计分析.研究结果表明,德约科维奇属于底线型打法选手,发球质量较高,上网成功率高,非受迫性失误少,主动得分能力强,击球稳定性好,技术全面,战术运用合理.分析其取胜的原因,观察现今网坛的发展趋势,为我国的网球运动训练提供一些理论参考依据.     

教育均衡发展:理论、指标及测算方法

教育均衡实质上是指在教育公平思想和教育平等原则的支配下,教育机构和受教育者在教育活动中有平等待遇的理想和确保其实际操作的教育政策和法律制度。教育均衡发展的本质是追求教育平等,实现教育公平。教育均衡发展从宏观层面分析是教育供给与需求的均衡,从中观层面分析是教育资源配置的均衡,从微观层面分析是学校教育过程包括内部课程教学资源配置的均衡、教育结果的均衡以及教育评价的均衡。教育均衡发展是一个历史范畴,按其实现程度可分为四个阶段。建立适应我国国情的基础教育特别是义务教育均衡发展指数,科学地选择基础教育均衡发展的要素,明确基础教育均衡发展的目标,具有重要的现实意义。数据分析表明,我国基础教育从整体上看正在趋向均衡。     

国家义务教育质量监测:一个模型构想

国家义务教育质量监测体现了国家对义务教育的责任,是保障义务教育质量的关键手段,有助于课程改革的推进和素质教育的落实,有助于规范教育行为,引领正确的社会舆论,有助于保障公民获得优质教育的权利和公平的受教育权利。在基础     

重庆市独立设置成人高校继续教育发展现状、问题与对策研究

本文通过对重庆市10所独立设置成人高校发展现状的调研,对重庆市独立设置成人高校发展过程中存在的问题进行了剖析,并进一步提出了发展对策和建议。     

Kicking modality during erratic-dynamic and static condition effects the muscular co-activation of attacker

The purpose of the study was to investigate the effect of different kicking modality, i.e., erratic-dynamic target (EDT) versus static target (ST) on the performance of the roundhouse kick in two groups of taekwondo athletes of different skill level. Three-dimensional analysis and surface electromyography (SEMG) analysis were performed on 12 (Group A: six sub-elite, Group B: six elite) athletes to investigate muscle co-activation pattern under two conditions, i.e., EDT versus ST. In the results, the muscle recruitment ratio of the agonistic muscles was higher for Group A, whereas Group B had higher recruitment ratio for antagonist muscles. Overall, the co-activation index (CI) of hip joints appeared higher in the extensors for Group A, whereas higher CI was observed in flexor muscles for Group B with comparatively higher CI during EDT condition than ST condition. Higher value of CI was observed in flexor muscles of the knee joints among Group A during EDT conditions, in contrast, higher CI in the extensor muscles was observed among Group B during ST conditions. In conclusion, the study confirmed that erratic-dynamic movements of target could change the movement coordination pattern to maintain the joint stability of participants.     

清末直隶习艺所初探

习艺所是近代监管罪犯、游民,教其技艺,令其自谋生计的教养机构,清末习艺所的创设受到西方和本土双重因素影响.直隶积极响应朝廷号召,从天津、保定着手创办习艺所,兼以督促各府县习艺所的创设.直隶地区习艺所具备了较为完善的运营制度,实现了教养兼施的目的,有效地缓解了治安、就业等方面的社会压力,促进了近代刑狱改革与救济转型的发展.     

荒漠植物白刺光合作用对人工模拟增雨的响应与适应

研究未来降水增加条件下荒漠植物白刺光合作用对人工模拟增雨的响应和适应。实验共设置5个处理,包括对照、自然降水基础上分别增加年平均降水量（145 mm）的25%、50%、75%和100%。对2010年生长季白刺叶片光合速率、叶周气温、清晨叶水势、土壤含水量等监测指标进行分析。研究结果表明：白刺叶片净光合速率与叶周气温之间呈二次函数关系,人工增雨处理后拟合曲线顶点左右平移。与对照相比,25%和50%增雨处理样地的拟合曲线顶点左移,顶点对应的叶周气温较对照样地（29.31 ℃）分别降低0.44和0.74 ℃;75%和100%增雨处理样地的拟合曲线大幅度右移,顶点对应的叶周气温较对照样地分别升高2.26和6.02 ℃左右。人工模拟增雨改变了白刺光合作用对温度的适应范围。     

上海体育学院休闲体育专业建设现状的调查研究——基于学生满意度视角

采用文献资料法、问卷调查、数理统计法,从学生满意度视角出发,对上海体育学院休闲体育专业建设现状进行调查,旨在找出目前专业发展存在的问题,并提出合理的建议.从学生反馈的结果发现,目前休闲体育专业建设存在课程内容重复杂乱;课程比例设置不合理;师资力量匮乏等问题.建议在目标定位和课程设置环节上,应从学生的立场出发,以市场需求为导向,适时调整培养目标,合理规划课程内容.     

临汾市社会体育指导员参与指导服务的影响因素分析

运用文献资料法、问卷调查法、数理统计法等科研方法进行分析研究.结果显示:社指参加服务次数过多;时间过长;地点多集中在开放性强的广场与公园;指导的项目偏单一,多为健身操和武术;每次进行指导时人数多,规模大的占多数.建议增多地方培训基地,加大培养力度.加多免费提供技能培训机会.将参与社会健身指导服务列入在校公益活动.