The influence of drink temperature on thermoregulatory responses during prolonged exercise in a moderate environment     

Jason K. W. Lee 《Journal of sports sciences》2013,31(9):975-985

Abstract

Nine males cycled at 53% (s = 2) of their peak oxygen uptake ([Vdot]O_2peak) for 90 min (dry bulb temperature: 25.4°C, s = 0.2; relative humidity: 61%, s = 3). One litre of flavoured water at 10 (cold), 37 (warm) or 50°C (hot) was ingested 30 – 40 min into exercise. Immediately after the 90 min of exercise, participants cycled at 95%[Vdot]O_2peak to exhaustion to assess exercise capacity. Rectal and mean skin temperatures and heart rate were recorded. The gradient of rise in rectal temperature was influenced (P < 0.01) by drink temperature. Mean skin temperature was highest in the hot trial (cold trial: 34.2°C, s = 0.5; warm trial: 34.4°C, s = 0.5; hot trial: 34.7°C, s = 0.6; P < 0.01). Significant differences were observed in heart rate (cold trial: 132 beats · min^?1, s = 13; warm trial: 134 beats · min^?1, s = 12; hot trial: 139 beats · min^?1, s = 13; P < 0.05). Exercise capacity was similar between trials (cold trial: 234 s, s = 69; warm trial: 214 s, s = 52; hot trial: 203 s, s = 53; P = 0.562). The heat load and debt induced via drinking resulted in appropriate thermoregulatory reflexes during exercise leading to an observed heat content difference of only 33 kJ instead of the predicted 167 kJ between the cold and hot trials. These results suggest that there may be a role for drink temperature in influencing thermoregulation during exercise.  相似文献   

Reflections on the Use of the RTE Model in Physical Education     

Beverly J. Yerg 《Research quarterly for exercise and sport》2013,84(1):38-47

Abstract

Research on teacher effectiveness (RTE) using process-product design is a relative newcomer in the area of educational research and an infant in the realm of physical education. The “ideal” model for RTE postulated by cognitive domain researchers from the University of Pittsburgh's Learning Research and Development Center specified six requirements for such research including measures of outcome, teacher behavior, and other influencing factors; a model of classroom processes; data collection procedures; and analysis techniques. This paper discusses procedures and problems related to application of the model where the outcome was psychomotor. Specific topics of discussion include utilizing practice time, providing feedback, defining teaching, measuring teacher mastery, selecting the learning task, utilizing the experimental teaching unit (ETU) approach, and using observation systems. The knowledge base in the acquisition of motor skill must be translated into language for the practitioner. To accomplish this translation, it is necessary to identify teacher behaviors that facilitate learning within given contexts for a specified task or tasks. Such identification will be possible when additional research provides refinement in the model and a sound foundation of knowledge. This research endeavor was an early step in the refinement process.  相似文献   

Form as Content,or, It's All Style     

Allen Guttmann 《国际体育史杂志》2013,30(17):2007-2015

How we say what we say is a part of what we say. In this sense, the form and the content of a statement are inseparable. Style matters semiotically as well as aesthetically. These three assertions are supported by a series of examples from a wide range of verbal and non-verbal sports-historical texts. In accordance with the post-modernist emphasis on reflexivity, several of my examples are taken from my own efforts to ‘do’ history.  相似文献   

体育院系田径专修课程术科考试内容与方法的研究——以哈尔滨体育学院为例     

熊健  陈倩倩  罗春林 《哈尔滨体育学院学报》2013,(6):73-77

通过对哈尔滨体育学院田径专修课技术考核中考核内容与方法的研究,发现目前的田径专修术科考试内容和方法存在诸如选定内容片面、考试方法和考核标准不适应以及考试结果不能准确反馈教学效果等方面的问题。本研究在调查分析的基础上,提出了改进措施和建议,力求修订科学、合理的田径专修课程技术考核内容、考核方法和考核标准,切实贯彻以人为本的教育理念,更好地为实现培养一专多能田径专门人才的培养目标服务。  相似文献   

河南省体育院校武术套路教学内容的研究     

李静 《体育科技文献通报》2013,21(8):83-83,92

本文主要运用文献资料法、问卷调查法、逻辑分析法、数理统计法等研究方法对河南省体育院校武术套路教学内容进行调查。结果表明现行的体育武术套路技术教学内容多以竞赛套路为主,技击性动作教学内容相对较少,在武术知识的传授上也缺乏必要的系统性。  相似文献   

我国体育赛事管理教材内容体系研究     

郇昌店  徐洁 《河北体育学院学报》2013,(3):29-33

运用问卷调查和专家访谈等方法,对我国体育赛事教材的内容体系进行探讨。研究发现,现有体育赛事管理教材在内容编排上虽各有侧重,但大多涉及竞赛管理、市场营销、组织管理、人力资源管理、财务管理、案例分析、实践教学等领域。认为,体育赛事管理教材内容的筛选应坚持学科知识、学习者需求与当代社会生活经验三者有机结合的原则。通过教师与学生态度的调查分析,确定了我国体育赛事管理教材内容体系中基础理论、实践运行和实践活动设计三个板块,并对构成要素进行分析。  相似文献   

基于职业能力培养的“西方经济学”教学改革探讨     

陆彩兰  吉万年 《扬州教育学院学报》2013,(3):60-63

随着社会经济的飞速发展,学生职业能力培养的重要性日益提高。当前“西方经济学”教学存在着课程实验实训内容不足、教学活动缺乏创新、学生对教学的参与性不强以及课程之间缺乏系统性整合等问题,对学生专业实践、职业转换、社会交往、综合运用方面的能力培养造成不利影响。在教学内容改革中,可以尝试对教学活动的实践性、创新性、参与性和系统整合性加以规划和选择,以培养出符合社会需要的“一专多能”人才。  相似文献   

论体操的分类及其内容     

魏曙光 《吉林体育学院学报》2013,29(1):83-87

采用文献资料法和综合分析法,通过梳理体操内涵的变迁过程,分析体操分类与内容存在的问题,以体操功效理论作为分类标准,将体操分为三大类：一是器械性体操,二是价值性体操,三是基本体操;以体操运动技术序列发展的时空顺序为依据确立体操各类的内容。  相似文献   

高校资深英语教师学科教学知识之个案研究——关于学生的知识     

甄玲 《科教文汇》2013,(2):76-77

以索尔曼提出的学科教学知识为理论基础,以重点本科院校的一名具有三十几年教龄的资深英语教师为个案．通过课堂观察、录像、采访、学生问卷等形式,发现该教师关于学生的知识包括五个方面,关于学生的知识的形成受四大因素的影响。  相似文献   

作物栽培学教学改革探讨     

宋碧 《科教文汇》2013,(19):74-74,78

对作物栽培学教学内容、教学方法、实践教学改革进行了探讨。在教学内容选择上紧密结合学科发展和产业发展的需要;在教学方法上灵活、综合运用多种教学方法;在实践教学中改革实验教学内容、实习进程和实习内容。  相似文献