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1.
论学校体育改革与素质教育 总被引：1，自引：0，他引：1
本文认为,要使原来的人才培养模式由“应试教育”向“素质教育”转变,学校体育同样面临这一转变。并对在这个转变中存在的困难与问题,以及努力的方向进行了理论上的分析。 相似文献
2.
中国古代椅子文化的发展及其启示 总被引：1，自引：0，他引：1
椅子不仅使生活方便和舒适,还为工作创造便利条件、提高效率。经过数千年的发展,不仅仅是一种简单的功能物品,还是一种丰富的文化形态与信息载体,成为各个时期政治需求、审美情趣、科技水平的综合体现。而在快速发展的全球化社会中,椅子日趋多样,研究中国古代的椅子文化,对传统家具的继承和革新具有借鉴意义。 相似文献
3.
Mireia Felez-Nobrega Charles H. Hillman Kieran P. Dowd Eva Cirera Anna Puig-Ribera 《Journal of sports sciences》2018,36(20):2311-2316
The aim of this study was to examine relationships between activPAL?-determined sedentary behavior (SB) and physical activity (PA) with academic achievement. A total of 120 undergraduates (N = 57 female; 20.6 ± 2.3 years) participated in the study. Academic achievement was measured as the grade point average obtained from all completed courses. Participants wore on the right tight an activPAL? for 7 days to determine total sedentary time, total number of sedentary breaks, sedentary bouts, standing time, light and moderate-to-vigorous physical activity (MVPA). Separate multiple linear regression models were performed to examine associations between SB variables and academic achievement. Light PA, MVPA, total sedentary time, total standing time, or total number of sedentary breaks were not related to academic achievement. Independently of PA, the amount of time spent in sedentary bouts of 10-20min during weekdays was positively related to academic achievement. Given that college students spend the majority of their workday in environments that encourage prolonged sitting, these data suggest that interruptions in prolonged periods of sitting time every 10-20min via short breaks may optimize cognitive operations associated with academic performance. 相似文献
4.
A study was conducted to assess the validity of the Global Physical Activity Questionnaire (GPAQ) for measuring sedentary behaviour (SB) in the Chilean adult population. About 217 adults (93/124 male/female, 43.8 ± 15.75 years) who were randomly selected during National Health Survey 2009–2010 completed the protocol. The participants wore an ActiGraph GT3X (AG) for 7 consecutive days and then completed the GPAQ (single-item question for measuring time spent sitting in a usual day). Validity was examined using Spearman’s correlation, mean bias and limits of agreement (LoA), with AG (vertical axis <100 counts · min?1) as the reference standard for estimates of SB in bouts of 1 (AG1), 5 (AG5) and 10 (AG10) min. Agreement between the GPAQ and AG for classifying data into quartiles and tertiles was assessed with kappa method. The GPAQ showed fair correlation with AG1, AG5 and AG10 (range = 0.23–0.26), with large mean biases (range = ?293.9, ?76.12 min · day?1). Agreement between the GPAQ and AG1, AG5 and AG10 was poor for categorising time spent in SB into tertiles and quartiles. The single question from the GPAQ has shown fair validity for measuring SB and poor ability for correctly classifying individuals into tertiles or quartiles of SB in a Chilean population. 相似文献
5.
阐述了保山市施甸县由旺镇滇剧产生的历史文化渊源及特殊的表演方式,并对由旺镇滇剧坐唱的文化价值给予评价及肯定,这对推动与促进滇剧音乐和民间戏曲艺术研究的深入发展,有一定积极的作用。 相似文献
6.
Prolonged sitting induces adverse metabolic changes. We aimed to determine whether breaking up prolonged sedentary time with short periods of repeated sit-to-stand transitions (“chair squats”) every 20 minutes influences postprandial metabolic responses. Fourteen participants (11 men, 3 women), age 37 ± 16 years, BMI 30.5 ± 3.8 kg.m?2 (mean ± SD) each participated in two experimental trials in random order, in which they arrived fasted, then consumed a test breakfast (8 kcal.kg?1 body weight, 37% energy from fat, 49% carbohydrates, 14% protein) and, 3.5 hours later, an identical test lunch. Expired air and blood samples were taken fasted and for 6.5 hours postprandially. In one trial (SIT) participants sat continuously throughout the observation period; in the “Chair squat” trial (SIT/STAND), participants performed “chair squats” (10 × standing and sitting over 30 seconds, every 20 minutes). Compared to SIT, energy expenditure was 409.7 ± 41.6 kJ (16.6 ± 1.7%) higher in SIT/STAND (p < 0.0001). Postprandial insulin concentrations over the post-breakfast period were 10.9 ± 8.4% lower in SIT/STAND than SIT (p = 0.047), but did not differ between trials in the post-lunch period. Glucose and triglyceride concentrations did not differ significantly between trials. These data demonstrate that a simple, unobtrusive intervention to break up sedentary time can induce some favourable metabolic changes. 相似文献
7.
在前排进攻发展基本成熟的情况下,坐式排球进攻战术沿纵深发展成为一种必然趋势。本文从我国女子坐式排球国家队运动员的手臀高、对后排进攻技术动作的掌握、运动员的个体与整体情况以及后排进攻的传扣时间等四个角度的理论与实践论证得出:后排进攻战术完全可以作为我国女子坐式排球队主要进攻手段之一。 相似文献
8.
Joseph Henson Charlotte L. Edwardson Danielle H. Bodicoat Kishan Bakrania Melanie J. Davies Kamlesh Khunti 《Journal of sports sciences》2018,36(14):1586-1593
Although high levels of sitting time are adversely related to health, it is unclear whether moving from sitting to standing provides a sufficient stimulus to elicit benefits upon markers of chronic low-grade inflammation in a population at high risk of type 2 diabetes (T2DM). Three hundred and seventy two participants (age = 66.8 ± 7.5years; body mass index (BMI) = 31.7 ± 5.5kg/m2; Male = 61%) were included. Sitting, standing and stepping was determined using the activPAL3TM device. Linear regression modelling employing an isotemporal substitution approach was used to quantify the association of theoretically substituting 60 minutes of sitting per day for standing or stepping on interleukin-6 (IL-6), C-reactive protein (CRP) and leptin. Reallocating 60 minutes of sitting time per day for standing was associated with a ?4% (95% CI ?7%, ?1%) reduction in IL-6 (p = 0.048). Reallocating 60 minutes of sitting time for light stepping was also associated with lower IL-6 levels (?28% (?46%, ?4%; p = 0.025)). Substituting sitting for moderate-to-vigorous (MVPA) stepping was associated with lower CRP (?41% (?75%, ?8%; p = 0.032)), leptin (?24% (?34%, ?12%; p ≤ 0.001)) and IL-6 (?16% (?28%, 10%; p = 0.036). Theoretically replacing 60 minutes of sitting per day with an equal amount of either standing or stepping yields beneficial associations upon markers of chronic-low grade inflammation. 相似文献
9.
钢琴教学中常见问题解析 总被引：1，自引：0，他引：1
学钢琴不仅要有耐心,也要讲艺术。万事开头难,钢琴初学者在初学时会出现一些问题,例如：弓腰驼背,端肩吊臂,绞脚绕腿,压腕抖腕,掌僵指硬等毛病,而要学好钢琴就必须在刚入门时打好基础,要改正平时所出现的毛病,要端正坐姿,放松胳膊,稳定手腕,支撑手掌,这样,才能在钢琴学习上取得好的成效。 相似文献
10.
异地高考政策是政府对进城务工人员随迁子女义务教育后的升学考试问题的应对之策。运用多源流模型分析框架,对异地高考政策的问题源流、政策源流、政治源流、关键性的焦点事件和政策企业家等五个动力要素进行整体性分析发现：教育政策“断层”下的异地高考诉求形成了异地高考问题源流;政协委员和专家学者的意见主张构成异地高考政策的政策源流;国民的教育公平需求,党和政府的促进教育公平、正义的价值选择形成了异地高考政策的政治源流。“15知名学者上书事件”催化了异地高考政策之窗的开启,并在政协委员、专家学者和新闻记者等政策企业家的助推下,实现了问题、政策、政治三大源流的交汇,进而达致异地高考政策议程的设置。而这一政策议程也表征出两大中国特点：一是问题源流与政策源流存在先因后果的影响问题;二是政策企业家具有多重角色作用。 相似文献