咫尺王牌

虽然在口才、领导能力、组织技巧、大局观、传球上还相去甚远,但是。在其他方面。包括杀气、冷血、面无表情、连续投丢球后还能在要命的时刻一剑封喉、接管比赛时当仁不让、疯狂训练基本功、投出似乎完全不合常理的球却能让人哑口无言的命中、心脏比身体还大,他是如今东部肌肉最紧凑结实的小前锋之一。但是作为一名杀手,格兰杰却已经做到了让人闻之色变的地步。     

Classroom-based science research at the introductory level: changes in career choices and attitude

Our study, focused on classroom-based research at the introductory level and using the Phage Genomics course as the model, shows evidence that first-year students doing research learn the process of science as well as how scientists practice science. A preliminary but notable outcome of our work, which is based on a small sample, is the change in student interest in considering different career choices such as graduate education and science in general. This is particularly notable, as previous research has described research internships as clarifying or confirming rather than changing undergraduates' decisions to pursue graduate education. We hypothesize that our results differ from previous studies of the impact of engaging in research because the students in our study are still in the early stages of their undergraduate careers. Our work builds upon the classroom-based research movement and should be viewed as encouraging to the Vision and Change in Undergraduate Biology Education movement advocated by the American Association for the Advancement of Science, the National Science Foundation, and other undergraduate education stakeholders.     

优秀游泳运动员赛前心理状态的脑功能特征研究

对20名健将级游泳运动员在赛前一周、赛前一天和赛后24h内的脑功能状态进行动态追踪研究。结果表明,赛前一天,大脑中枢递质5HT、Ach和DA出现了特殊的空间构型,具体表现为5HT的右脑优势;Ach的前高后低走向和DA的左脑优势。赛前一天可能是运动员赛前心理状态发生变化的关键点。     

Quantifying athlete self-talk

Two studies were conducted. The aims of Study 1 were (a) to generate quantitative data on the content of athletes' self-talk and (b) to examine differences in the use of self-talk in general as well as the functions of self-talk in practice and competition settings. Differences in self-talk between the sexes, sport types and skill levels were also assessed. Athletes (n = 295, mean age = 21.9 years) from a variety of sports and competitive levels completed the Self-Talk Use Questionnaire (STUQ), which was developed specifically for the study. In Study 1, single-factor between-group multivariate analyses of variance revealed significant differences across sex and sport type for the content of self-talk. Mixed-model multivariate analyses of variance revealed overall greater use of self-talk, as well as increased use of the functions of self-talk, in competition compared with practice. Moreover, individual sport athletes reported greater use of self-talk, as well as the functions of self-talk, than their team sport counterparts. In Study 2, recreational volleyball players (n = 164, mean age = 21.5 years) completed a situationally modified STUQ. The results were very similar to those of Study 1. That the content of athlete self-talk was generally positive, covert and abbreviated lends support to the application of Vygotsky's (1986) verbal self-regulation theory to the study of self-talk in sport. Researchers are encouraged to examine the effectiveness of self-talk in future studies.     

美国田协优秀青年男子短跑运动员集中测试成绩概述(中)

角特征当短跑运动员行进间起跑超过20米时,我们录制了每名运动员冲刺跑的一个单步技术,随后采用“Computrainer 2000”系统对运动员身体各环节通过该单步不同阶段(着地,缓冲,蹬伸,腾空)的角位移进行了计算。通过比较速度较快与速度较慢的短跑运动员的技术细节,我们发现了在跑步动作过程中腿和臂环节角位移的一些差异。我们在四个阶段对跑步动作进行了研     

会说话的骨头

从前有一个人总是像学者一样,无论在何时何地都要陷入思考。他喜欢考虑重要的事情,对一般的问翘却不去理会。如果不是根本不可能的事情,或者不是非常复杂的事情,他根本就懒得去想。     

比赛饮食

游泳、跳水运动员的早期技术训练能使他的技术更加完善,力量训练可以促进成绩的提高。然而,平时积极摄取的各种营养给运动员所带来的益处却不是那么显而易见。显然积极摄取营养的习惯可提高运动员的训练及比赛水平。有的人认为,身体训练是创造最佳成绩的唯一途径,因为有时,那些并没有特殊营养计划的运动员在游泳和跳水比赛中一样很成功。但是,这是极少数的天才运动员。毫无疑问,那些将营养摄取做为平时训练计划的一个组成部分的运动员,肯定会创造出更好的成绩。目前,世界各国正在研究、探索一种可供训练和创造最佳成绩的理想饮食方法。但研究表明,找不出一个适合每个游     

体重的控制

怎样才能减轻体重?我曾试着不吃糖果,减少喝饮料,但我的体重仍不减。我的教练说我必须减轻体重。但是,我如果不吃平常所吃的食物,就感到虚弱和疲倦,而且也确实行不通,请帮助!