“跟我学汉语”语法练习题型考察与分析

本文选取了专为海外中学生编写的对外汉语教材“跟我学汉语”（英语版）作为研究材料,对这套教材的语法练习题型进行考察和分析,并结合青少年的心理特点总结了这套教材语法练习编写的成功之处,以期为海外青少年对外汉语教材语法练习的编写提供借鉴。     

大众艺术体操的终身锻炼价值

大众艺术体操的锻炼能使身体素质和身体机能明显改善，并且能够促进身心健康同步发展，具有较高的锻炼价值。大众艺术体操作为终身体育锻炼主要项目很有意义。     

味觉嗜好学习对游泳运动大鼠支链氨基酸及神经递质变化的影响

目的:探讨氨基酸嗜好学习建立后游泳运动大鼠血、脑脊液中BCAA、GABA、Trp及其代谢产物的关系,为延缓或消除运动性疲劳探索新的途径.方法:采用HPLC法测定味觉嗜好学习建立后,进行7天适宜、力竭游泳运动后大鼠血、脑脊液中支链氨基酸及神经递质变化.结果:血液中BCAA浓度变化趋势是力竭游泳对照组显著高于空白对照组,P<0.05;脑脊液中氨基酸嗜好组、氨基酸嗜好后适宜游泳组显著低于空白对照组,P相似文献   

Improving Academic Performance of Sport and Exercise Science Undergraduate Students in Gross Anatomy Using a Near-Peer Teaching Program

Peer and near-peer teaching programs are common in medical undergraduate courses. However, there are no studies that have investigated the effectiveness of a near-peer teaching program on the academic performance of undergraduate students pursuing sport and exercise science coursework. This study was conducted to analyze the effectiveness of such a program for students who participated in a course on the functional anatomy of the locomotor apparatus. A total of 39 student participants were divided into two groups: students in one group voluntarily attended at least one session of a near-peer teaching program, and students in the other group attended no sessions. The final grade (range 0–100%) was recorded and used as an indicator of academic performance. The final grade of students who attended the near-peer teaching program (69.5 ± 16.0%) was 38.7% higher (P = 0.002, d = 1.06) than those who did not (50.1 ± 20.4%). When the academic performance of the same students was evaluated in another course (exercise physiology) that did not offer a near-peer teaching program, there were no significant differences between the groups (students who attended or did not attend the near-peer teaching program). A significant positive association was found between near-peer teaching program frequency and the number of students approved and not approved in the course (P = 0.041). A significant difference (P = 0.001) was found in the attendance at regular classes between the group who participated in the near-peer teaching program (median: 62 hours; IQR [interquartile ranges]: 4.0 hours) and those who did not (median: 58 hours; IQR: 4.0 hours). Gender was not a moderating factor on academic performance or near-peer teaching program attendance. These results highlight the effectiveness of a near-peer teaching program on the academic performance of students from a sport and exercise science degree program while enrolled in an anatomy course. Anat Sci Educ. © 2018 American Association of Anatomists.     

巧用Edison辅助电学习题教学

Edison是一款教导和学习有关电学和电子学知识的多媒体教学仿真软件。它的全称是＂Edison爱迪生电学电子学多媒体实验室＂,主要应用于电子电路的设计、模拟分析以及电子电路的仿真分析、设计。本文是笔者利用Edison的仿真功能辅助电学习题教学,引导学生掌握先进的学习工具,改变学习方式,实现轻松学习的一些实践体会。     

人类健康与肢体共振运动——献给人类最好的健身方式

本文通过多种运动方式对比,感受到肢体共振运动有神奇的健身效果。试验表明,肢体共振运动能治疗食道癌性病变、胃溃疡、肠道疾病、肩周疼痛、颈椎病变性头痛、大脑缺氧、失眠多梦、口腔溃疡、前列腺炎、便秘出血、长期感冒等。     

运动性疲劳及其恢复

运动性疲劳包括运动性生理疲劳和运动性心理疲劳，通过分析其产生的机理，采用适当的、针对性的恢复措施，消除运动性疲劳，从而提高运动训练效果。     

A comparison of muscle activity and 1-RM strength of three chest-press exercises with different stability requirements

Abstract

The purpose of this study was to compare one-repetition maximum (1-RM) and muscle activity in three chest-press exercises with different stability requirements (Smith machine, barbell, and dumbbells). Twelve healthy, resistance-trained males (age 22.7 ± 1.7 years, body mass 78.6 ± 7.6 kg, stature 1.80 ± 0.06 m) were tested for 1-RM of the three chest-press exercises in counterbalanced order with 3–5 days of rest between the exercises. One-repetition maximum and electromyographic activity of the pectoralis major, deltoid anterior, biceps, and triceps brachii were recorded in the exercises. The dumbbell load was 14% less than that for the Smith machine (P ≤ 0.001, effect size [ES] = 1.05) and 17% less than that for the barbell (P ≤ 0.001, ES = 1.11). The barbell load was ～3% higher than that for the Smith machine (P = 0.016, ES = 0.18). Electrical activity in the pectoralis major and anterior deltoid did not differ during the lifts. Electrical activity in the biceps brachii increased with stability requirements (i.e. Smith machine <barbell <dumbbells; P ≤ 0.005; ES = 0.57, 1.46, and 2.00, respectively), while triceps brachii activity was reduced using dumbbells versus barbell (P = 0.007, ES = 0.73) and dumbbells versus Smith machine (P = 0.003, ES = 0.62). In conclusion, high stability requirements in the chest press (dumbbells) result in similar (pectoralis major and anterior deltoid), lower (triceps brachii) or higher (biceps brachii) muscle activity. These findings have implications for athletic training and rehabilitation.     

课前准备活动的生理探讨

体育课的准备活动是课的重要组成部分之一,体育课的最大特点是学生直接从事大量的身体练习,而准备活动的目的在于逐步提高学生大脑皮层的兴奋性,逐步克服内脏器官的惰性,使人体各组织器官迅速进入工作状态,为基本部分的学习做好生理上和心理上的准备.     

对大学生体育锻炼行为阶段性特点的调查研究

本文运用“阶段性行为改变模式”的理论,对大学生的体育锻炼行为的阶段性特点进行了初步的调查研究。研究的结果表明,有一定比例的大学生完全不参加体育锻炼,有体育锻炼习惯者较少,大部分的学生有时参加体育锻炼,但没有养成习惯;大学生的体育锻炼行为具有阶段性动力特征;大学生中存在随年级的增长不参加体育锻炼的人数同时增加的不良现象。