教育实践美的诠释

美是教育实践的一种深度,没有这种深度,实践将是贫乏和肤浅的.追求实践美的取向使教师始终怀有寻找精神家园的永恒冲动.了解教育实践美的标准和外显特征,使我们认识到教育实践的美是"真",是"善",是思维方式,是精神追求,是一种"诗性智慧",同时也是一种遗憾的美.目前教育实践美的探讨仅停留在"思想的童年时代".     

太极拳理初探

太极拳是思想拳、是哲拳,向来有"三分练,七分悟"之说。学太极拳必先明太极之理,通修炼之路,理清路明,方有所得。文章从什么是真正的太极拳,太极拳到底练什么,太极拳为什么要稳静、缓慢,松与紧的辨证关系,太极拳运动如何放松,太极拳与水的关系等方面进行了分析、探讨,目的在于与广大太极拳爱好者相互切磋、共同提高。     

论武术套路的"舞"性

文章对武术套路所具备的"舞"的属性进行研究,研究结果表明:武术套路是由"武舞"发展而来的,并通过对武术动作的"舞"化来展现武术的技击含义,作为身体表现艺术的形式,在表现的审美功能上的"舞"化又使得武术套路具备了"形式美"和"意境美"。     

中国女子水球队与世界一流强队的比较分析

本文结合2008北京奥运会女子水球比赛、2008世界女子水球联赛总决赛和2008欧锦赛女子水球比赛中的相关数据,来综合比较分析中国女子水球队和世界女子水球强队的差距,分析得出中国女子水球队需要加强关键球处理的训练;加强扩大防守、破扩大防守的训练,以及加强防守阵型的应变性;进一步提高"6打5"、"5防6"的成功率;重点提高中锋的门前拿球射门能力和外线队员中远距离的射门能力;加强队员得球后下快攻的意识和防反意识;提高队员比赛时对裁判员判罚的阅读能力。     

论武术表演中的艺术美

中华武术是古老东方的瑰宝和精华,是中国运动项目的国粹;以动作繁杂、姿态优美的表演形式,无论在技击还是在演练武术的过程中所表现的美,无不含有艺术性,其中所蕴含的美给人们带来一种赏心悦目振奋精神的情感。文章利用文献资料法、逻辑推理归纳法从武术表演基本特征出发,对武术表演的艺术美、武术关学特征、美的形式三个方面进行分析,以其独特的个性魅力推动武术更好的向前发展。     

艺术体操美的辨证分析

艺术体操美是多方面的,本文从动态美与静态美、人体美与自然美、外形美与内在美、音乐美与编排美、体育美与艺术美等五个方面来阐述艺术体操的独特美感,辩证分析艺术体操之美。     

Physiological and biomechanical responses to walking underwater on a non-motorised treadmill: effects of different exercise intensities and depths in middle-aged healthy women

Abstract

Non-motorised underwater treadmills are commonly used in fitness activities. However, no studies have examined physiological and biomechanical responses of walking on non-motorised treadmills at different intensities and depths. Fifteen middle-aged healthy women underwent two underwater walking tests at two different depths, immersed either up to the xiphoid process (deep water) or the iliac crest (shallow water), at 100, 110, 120, 130 step-per-minute (spm). Oxygen consumption (VO₂), heart rate (HR), blood lactate concentration, perceived exertion and step length were determined. Compared to deep water, walking in shallow water exhibited, at all intensities, significantly higher VO₂ (+13.5%, on average) and HR (+8.1%, on average) responses. Water depth did not influence lactate concentration, whereas perceived exertion was higher in shallow compared to deep water, solely at 120 (+40%) and 130 (+39.4%) spm. Average step length was reduced as the intensity increased (from 100 to 130 spm), irrespective of water depth. Expressed as a percentage of maximum, average VO₂ and HR were: 64–76% of peak VO₂ and 71–90% of maximum HR, respectively at both water depths. Accordingly, this form of exercise can be included in the “vigorous” range of exercise intensity, at any of the step frequencies used in this study.     

Kinematic analysis of the backstroke start: differences between backstroke specialists and non-specialists

Abstract

The purpose of this study was to clarify factors to perform the hole-entry technique in the backstroke start. A total of 16 well-trained Japanese competitive swimmers were divided into two groups (backstroke specialists and non-specialists) to compare their backstroke start motions. Their backstroke motions were videotaped, and two-dimensional co-ordinates for the swimmers were obtained from the video images using direct linear transformation methods. A non-paired t-test and Mann–Whitney U-test were used to analyse the statistical difference of the kinematic variables between the groups. Backstroke specialists showed a significantly shorter 5 m time (P = 0.009, effect size = –1.54), a significantly higher position of the toe (P = 0.010, effect size = 1.47) at signal and of the hip at toe-off (P = 0.002, effect size = 1.94), a significantly larger hip joint angle at toe-off (P = 0.007, effect size = 1.60) and a significantly higher angular velocities of the hip joints (45–85%; P < 0.05) for the normalised time as compared to that of non-specialists. An earlier initiation of the extension and the maintenance of a higher extension speed at the hip joints were important factors in achieving an arched-back posture, which facilitated and water entrance with a small entry range.     

竞技体操美的思考与实践

通过采用心理学、美学理论及哲学观点,讨论竞技体操美的因素：人体最充分、最自由的展示;青春活力;难、新、稳、美、影响力。研究认为：竞技体操是一项艺术性要求极强的运动项目。美是体操的灵魂,在竞技体操教学训练中应对学生或运动员从心、形、体方面重视美的培养。     

湖库型饮用水安全与生物处理策略

饮用水污染问题日趋严重,本文根据莆田市环保局的统计数据,分析了饮用水污染的原因,提出了利用生物技术对饮用水源进行保护和水质净化,以保障饮用水安全.