南京体育学院成人高等教育改革与发展的思考

对南京体育学院"九五"期间的成人教育工作的主要经验和特色进行了总结,分析了"十五"期间面临的主要任务和发展方向,提出应切实加强教学基础建设,努力提高科学管理水平.     

深化教学改革提高办学质量--谈西安体育学院成人教育的特点

在不断扩大办学规模的今天 ,如何保证体育函授教学的质量 ,这就给我们成教工作者提出了新问题。对西安体育学院成人函授教育工作的经验进行了总结 ,提出“八个从严”是保证体育函授教学质量的重要条件。     

高师女大学生运动健身认知行为的研究

运用问卷调查法、文献综述法和数理统计方法对高师女大学生运动健身认知、行为的现状进行了分析研究.研究结果表明高师女大学生对运动健身的"知、信、行"有明显的偏差.通过分析研究,建议在对高师女大学生的运动健身活动给予适当的技术指导,促进女大学生体育运动健身以及健康教育的开展.     

论形象思维在武术套路教学中的运用

采用文献资料、实验对比、观察分析、专家访谈等方法,对普通高校武术套路教学中所运用的“运动形象思维练习法”进行了探讨。实践证明,科学的运用这种方法,能使学生在较短时间内掌握动作技术,激发学生学民瓣兴趣,明显提高教学质量。     

珠江三角洲"康乐"健身消费走向探析

探究了改革开放以来珠江三角洲一带的人们在健身消费方面的观念转变过程 ,分析了当今人们体育消费倾向和未来“康乐”健身走向 ,从中折射出当地人们健身消费情况。     

20世纪中国体育文化的价值选择

分析了20世纪中国体育文化价值的选择,认为毛泽东“发展体育运动,增强人民体质”的思想是新中国体育文化价值正确选择。它对新世纪中国体育的改革发展仍具有重要的指导意义。     

排球跳传技术的研究

跳传是排球运动中一项重要技术,在排球比赛中运用跳传技术组织进攻有许多优点,熟练地掌握跳传技术对比赛获胜具有重要作用,文中对跳传的移动取位、起跳和空中动作的要求、传球的时机、击球点和传球手型、击球部位和用力方向、落地的技术等方面均从理论与实践结合上作了科学的剖析。     

Muscle fatigue induced by exercise simulating the work rate of competitive soccer

Fatigue represents a reduction in the capability of muscle to generate force. The aim of the present study was to establish the effects of exercise that simulates the work rate of competitive soccer players on the strength of the knee extensors and knee flexors. Thirteen amateur soccer players (age 23.3+/-3.9 years, height 1.78+/-0.05 m, body mass 74.8+/-3.6 kg; mean+/-s) were tested during the 2000-2001 soccer season. Muscle strength of the quadriceps and hamstrings was measured on an isokinetic dynamometer. A 90 min soccer-specific intermittent exercise protocol, incorporating a 15 min half-time intermission, was developed to provide fatiguing exercise corresponding in work rate to a game of soccer. The exercise protocol, performed on a programmable motorized treadmill, consisted of the different intensities observed during soccer match-play (e.g. walking, jogging, running, sprinting). Muscle strength was assessed before exercise, at half-time and immediately after exercise. A repeated-measures analysis of variance showed significant reductions (P < 0.001) in peak torque for both the quadriceps and hamstrings at all angular velocities (concentric: 1.05, 2.09, 5.23 rad x s(-1); eccentric: 2.09 rad x s(-1)). The peak torque of the knee extensors (KE) and knee flexors (KF) was greater before exercise [KE: 232+/-37, 182+/-34, 129+/-27, 219+/-41 N x m at 1.05, 2.09 and 5.23 rad x s(-1) (concentric) and 2.09 rad x s(-1) (eccentric), respectively; KF: 126+/-20, 112+/-19, 101+/-16, 137+/-23 N x m] than at half-time (KE: 209+/-45, 177+/-35, 125+/-36, 214+/-43 N x m; KF: 114+/-31, 102+/-20, 92+/-15, 125+/-25 N x m) and greater at half-time than after exercise (KE: 196+/-43, 167+/-35, 118+/-24, 204+/-43 N x m; KF: 104+/-25, 95+/-21, 87+/-13, 114+/-27 N x m). For the hamstrings:quadriceps ratio, significant changes were found (P < 0.05) for both legs, the ratio being greater before than after exercise. For fast:slow speed and left:right ratios, no significant changes were found. We conclude that there is a progressive reduction in muscle strength that applies across a range of functional characteristics during exercise that mimics the work rate in soccer.     

Simulated tennis matchplay in a controlled environment

The aim of this study was to develop an exercise protocol to simulate tennis matchplay on a 'category 2' surface. Match analyses were used to form the basis for the design of the protocol. The protocol involved playing against a tennis ball serving machine. Part A of the protocol comprised 92 min 46 s of simulated tennis matchplay; Part B consisted of continuous hitting to the point of 'volitional fatigue' or when the required hitting frequency for two consecutive ball feeds could no longer be maintained. Ten elite tennis players (5 males, 5 females) volunteered to participate in the study, which was performed on an indoor tennis court (Matchplay, En-Tout-Cas). Their age, body mass and estimated maximal oxygen uptake were as follows: males, 21.7 +/- 1.0 years, 73.6 +/- 2.6 kg and 58.0 +/- 1.7 ml x kg(-1) x min(-1), respectively; females, 21.9 +/- 1.3 years, 62.3 +/- 2.0 kg and 42.2 +/- 0.7 ml x kg x min(-1), respectively (mean +/- sx). Heart rate, change in body mass and time to volitional fatigue were monitored. The heart rate responses of the participants to the simulated matchplay (range: 140-157 beats x min(-1), 73-81% peak heart rate) were consistent with the results of previous studies, for 'actual' matchplay. This protocol was successful in simulating similar physiological responses in Part A to 'actual' matchplay on a 'category 2' surface, in a controlled environment; it was also a sensitive evaluation tool of skilled performance in Part B. The current protocol may be used as a baseline protocol for studying the influence of, for example, training and dietary intervention on performance.     

Kinematics of cycling in relation to anterior knee pain and patellar tendinitis

The coronal and sagittal plane leg movements of 24 experienced male cyclists were assessed using video analysis while cycling on a Kingcycle windload simulator. The cyclists were grouped into those with a history of injury and an asymptomatic group on the basis of self-reported injury status. The ages, cycling experience, competition distances and competition speeds of the two groups were compared using Student's t-test. No significant differences (P < 0.05) were found for any of these variables. The maximum and minimum shank adduction, shank adduction velocities, knee flexion and ankle dorsiflexion values were also compared using Student's t-test. Significant differences were found at the point of maximum adduction (1.9 degrees; P = 0.019) and minimum dorsiflexion (4.9 degrees; P = 0.014). These differences indicated more dorsiflexion and greater abduction on the part of the symptomatic cyclists, supporting previous research that found that cyclists with a history of injury differ from those without a history of injury in the coronal plane leg movement patterns they adopt. Also, the most extreme medial position of the knee relative to the ankle occurred during knee extension. This supports the potential injury mechanism proposed by Francis (1986), which had previously only been examined using coronal plane kinematics.