Physiological profile of a professional boxer preparing for Title Bout: A case study

This study aimed to (1) profile a professional boxer (23 years and 80 kg) with boxing-specific, muscle function, aerobic capacity and body composition tests, and (2) quantify how these measures varied during an 8-week preparation phase leading to, and post a state-Title Bout fought in the 76.2-kg class. A series of boxing-specific and muscle function tests were completed on 11 occasions: 9 prior and twice after the bout, each separated by approximately 2 weeks. The boxing test included 36 maximal punches (9 of each: lead and rear straights, lead and rear hooks) to a punching integrator measuring forces and velocity. Muscle function tests included countermovement jump, drop-jumps, isometric mid-thigh pull and isometric bench-press. Body composition was assessed using skin-fold measurements on three occasions and one dual energy X-ray absorptiometry scan. Aerobic capacity was assessed using 2 VO₂ max tests. Leading up to the bout, performance decreased in isometric mid-thigh pull (8%), isometric bench-press (5%), countermovement jump (15%) and impact forces in 3 of 4 punches (4%–7%). Whereas measures of dynamic and isometric muscle function remained depressed or unchanged post competition, punching forces (6%–15%) and aerobic power (6%) increased. Data suggest the athlete may have super-compensated following rest as fatigue dissipated and further adaptation occurred.     

应当重视师范生的信息素养和能力培养

21世纪即将来临，师范计算机教育关系到下一代教师的整体素质，是当前教育改革的重要课题。本文从分析信息时代的教师应该具备的信息养素和信息技术能力出发，剖析了当前师范计算机教育中存在的一些问题，提出了改革的思路和建议。     

现代竞技体育体能训练对改善女大学生脊柱功能的研究

脊柱功能是衡量人体健康水平的重要指标,对人体保持高质量的学习、生活和工作状态产生直接的影响。如何运用有效的训练改善和提高人体脊柱功能,应引起高度的重视。以黑龙江省30名女大学生为研究对象,制定有针对性的训练方案,进行为期3个月的运动干预实验,分5个阶段进行训练监控及训练效果评估。结果显示：全体受试对象脊柱直背趋势最为显著,脊柱姿势、柔韧性、稳定性整体较差,脊柱疾病风险较高;通过动态拉伸、颈肩及腰等功能性训练对改善女大学生脊柱功能效果显著;实施训练方案后,在第30天改善效果最为明显。     

女排运动员肩关节损伤原因及其康复训练策略案例研究

肩伤是专业排球运动员常见的伤病之一,而主攻的肩伤在排球运动的损伤中是最多的。以江苏女排主攻手许若亚为对象,对其在2014年9月17日—2014年10月10日期间,肩关节损伤后的系统性康复训练要素与效果进行研究,总结经验,探索肩关节损伤的有效防治方法,为提高女子排球科医保障水平,指导科学训练提供参考和指导。     

小学教育专业双语师资培养实践

小学双语教学的实验已成为当前基础教育改革的一个亮点,越来越多的学校和教师青睐双语教学,实践双语教学。双语教学研究也成为我国基础教育研究的一个热点。师资问题一直是双语教学实施的一个关键问题。专家认为双语师资的培养已成为能否继续搞好双语教学的关键。本文将对南京晓庄学院小学教育专业双语师资培养实践进行探讨,并对小学双语师资的培养目标、课程设置、培养实践加以阐释。     

建筑工程专业生产实习教学改革研究

生产实习是建筑工程专业教学过程中的重要环节。文章阐述了生产实习的重要意义，结合生产实习的特点，论述了集中实习与分散实习相结合的教学改革模式。教学实践证明，这一组织形式取得了比较好的教学效果。     

高职市场营销专业职业技能培养的思考

高职市场营销专业职业技能培养目标应体现出实用性，职业技能教学要突出训练性，职业技能考核要体现开放性，这样才能更好地体现出高职的教育特色，有利于学生职业技能的形成。     

石油工程专业探索性实验提升大学生创新能力的意义

国内石油工程专业的本科生实验以传统验证性实验为主,缺少探索性实验教学。验证性实验教学偏重实验结果,是一种再现式的教学模式,不能充分体现实验探索未知的意义,造成大学生缺乏应有的创造能力,思维呆板,认识问题的方法单一,跟不上石油工程学科培育人才的发展要求。探索性实验,重在对未知的探索,有利于激发学生的好奇心,提高学生的主观能动性,克服其思维僵化的状态、培养思维灵活性,对提升大学生创新能力有着十分重要的意义。     

Determining optimal cadence for an individual road cyclist from field data

The cadence that maximises power output developed at the crank by an individual cyclist is conventionally determined using a laboratory test. The purpose of this study was two-fold: (i) to show that such a cadence, which we call the optimal cadence, can be determined using power output, heart-rate, and cadence measured in the field and (ii) to describe methodology to do so. For an individual cyclist's sessions, power output is related to cadence and the elicited heart-rate using a non-linear regression model. Optimal cadences are found for two riders (83 and 70 revolutions per minute, respectively); these cadences are similar to the riders’ preferred cadences (82–92?rpm and 65–75?rpm). Power output reduces by approximately 6% for cadences 20?rpm above or below optimum. Our methodology can be used by a rider to determine an optimal cadence without laboratory testing intervention: the rider will need to collect power output, heart-rate, and cadence measurements from training and racing sessions over an extended period (>6 months); ride at a range of cadences within those sessions; and calculate his/her optimal cadence using the methodology described or a software tool that implements it.     

女大学生对体育锻炼的认识及行为状况的调查研究

以陕西5所高校为例,通过对女大学生体育锻炼的认识及行为状况的调查研究表明,这一群体对体育锻炼的认识、观念等方面具有现代知识女性的思想特征,但参与体育锻炼的行为倾向处于一般水平。