对膝内侧副韧带损伤盘坐康复效果的观察     

陶胜国 《精武》2013,(35):7-8

观察盘坐对大学生运动员膝关节内佣副韧带损伤康复疗效。方法：将52例膝关节内例副韧带损伤大学生运动员随机分为两组。两组前期均采用针刺、推拿、TDP灯照射等方法进行治疗,待症状好转后,均进行15天的康复训练,实验组26例采用盘坐法康复,对照组26倒采用常规方法进行康复治疗。结果：实验组改良Lysholmscale评分积分值98．89,对照组分值86．42,差异有统计学意义（P〈0．01）。结论：盘坐较常规康复训练方法对膝关节内佣副韧带损伤彻底康复效果显著。  相似文献   

Isokinetic knee extension and vertical jumping: Are they related?     

Anna Iossifidou  Vasilios Baltzopoulos  Giannis Giakas 《Journal of sports sciences》2013,31(10):1121-1127

The aim of this study was to examine joint power generation during a concentric knee extension isokinetic test and a squat vertical jump. The isokinetic test joint power was calculated using four different methods. Five participants performed concentric knee extensions at 0.52, 1.57, 3.14 and 5.23 rad?·?s^?1 on a Lido isokinetic dynamometer. The squat vertical jump was performed on a Kistler force plate. Kinematic data from both tests were collected and analysed using an ELITE optoelectronic system. An inverse dynamics model was applied to measure knee joint moment in the vertical jump. Knee angular position data from the kinematic analysis in the isokinetic test were used to derive the actual knee angular velocity and acceleration, which, in turn, was used to correct the dynamometer moment for inertial effects. Power was measured as the product of angular velocity and moment at the knee joint in both tests. Significant differences (P <?0.05) were found between mean (?± s) peak knee joint power in the two tests (squat vertical jump: 2255?±?434W; isokinetic knee extension: 771?±?81W). Correlation analysis revealed that there is no relationship between the peak knee joint power during the vertical jump and the slow velocity isokinetic tests. Higher isokinetic velocity tests show better relationships with the vertical jump but only if the correct method for joint power calculation is used in the isokinetic test. These findings suggest that there are important differences in muscle activation and knee joint power development that must be taken into consideration when isokinetic tests are used to predict jumping performance.  相似文献   

Kinematic effects of repeated turns while running     

《European Journal of Sport Science》2013,13(8):1072-1081

Abstract

In team sports, non-contact ACL and MCL injuries occur during abrupt changes of direction, like turns or cutting manoeuvres. Fatigue affects dynamic neuromuscular control and increases knee injury risk. This study analysed how lower limb joints and centre-of-mass kinematics are affected throughout a high-intensity running protocol involving repeated 180°-turns. Twenty young men (18–23 years, BMI: 20.8–24.4?kg?m^?2) completed a 5-m shuttle running trial lasting 5?min at an average speed of 75% of their maximum aerobic speed. During the test, cardio-metabolic parameters were obtained, together with joints and centre-of-mass kinematics, using a motion capture system. Kinematic data were compared between the first and the last minute of exercise. Perceived exercise intensity ranged from “hard” to “maximum exertion” and post-exercise lactate concentration ranged from 5.4 to 15.5?mM. The repetition of 180°-turns induced a substantial reduction of hip (?60%, p?<?.001, large effect) and knee flexion (?40%, p?=?.003, medium-to-large effect), and an increase of hip adduction and internal rotation (+25–30%, p?<?.05, medium-to-large effect). Since such movements are factors increasing the likelihood of non-contact knee injuries, we concluded that the prolonged repetition of turns may expose participants to increased risk of ligament failure. Prevention programmes should include discipline-specific neuromuscular training especially in late practices.  相似文献   

四川省高师公共田径课学生膝关节损伤调查与分析     

余万斌 《绵阳师范学院学报》2012,31(11):119-122,127

采用调查法、数据统计法、文献资料法等多种研究方法,对四川省高师公共田径课学生膝关节损伤的现状进行调查分析,在了解高师公共田径课学生膝关节损伤的现状基础上,提出了充分做好准备活动;加强膝关节损伤医务监督;全面提高师资队伍素质等建议,为提高大学生身体素质,减少大学生运动损伤提供一定的实践理论指导。  相似文献   

Asymptomatic players with a patellar tendon abnormality do not adapt their landing mechanics when fatigued     

Suzi Edwards  Julie R. Steele  Deirdre E. McGhee  Craig R. Purdam  Jill L. Cook 《Journal of sports sciences》2017,35(8):769-776

This study aimed to explore how asymptomatic athletes with a patellar tendon abnormality (PTA), who are at high risk of developing patellar tendinopathy, alter their landing technique and net patellar tendon loads generated in response to fatigue. Seven asymptomatic players with a PTA performed five successful vertical stop-jump trials before and after a fatigue protocol. Fatigue protocol involved participants repeatedly performing sets of 30 submaximal jump exercises on a sledge apparatus followed by 30 s rest until the task failure criteria were reached. Three-dimensional ground reaction forces, lower limb kinematics and net peak patellar tendon force were recorded during the stop-jump task. No significant between-fatigue condition differences in net patellar tendon loading, or most secondary outcome variables were observed. Only some fatigue changes were seen during the vertical landing phase. Asymptomatic PTA participants did not modify their landing technique or net patellar tendon loading during a stop-jump task in response to fatigue. The lack of between-fatigue condition differences displayed by the asymptomatic PTA participants during both landing phases suggest that these individuals may not be capable of sufficient movement variability in their landing strategies to adapt to fatigue.  相似文献   

Identification of types of landings after blocking in volleyball associated with risk of ACL injury     

David Zahradnik  Daniel Jandacka  Roman Farana  Jaroslav Uchytil  Joseph Hamill 《European Journal of Sport Science》2017,17(2):241-248

Landing with a low knee flexion angle after volleyball block jumps may be associated with an increased risk of anterior cruciate ligament (ACL) injury. The aim of the present study was to identify the types of volleyball landings after blocks where the knee flexion angle is found to be under a critical knee flexion angle value of 30° at the instant of the first peak of the ground reaction force (GRF). Synchronized kinematic and kinetic data were collected for each trial. T-tests were used to determine if each knee flexion angle at the instant of the peak GRF was significantly different from the critical value of 30°. A repeated measures ANOVA was used to compare knee flexion angle, time to first peak and the magnitude of the first peak of the resultant GRF and knee stiffness. Significantly lower knee flexion angles were found in the “go” landing (p?=?.01, ES?=?0.6) and the “reverse” landing (p?=?.02, ES?=?0.6) only. The results for knee flexion angle and GRF parameters indicated a significant difference between a “reverse” and “go” and other types of landings, except the “side stick” landing for GRF. The “reverse” and “go” landings may present a risk for ACL injury due to the single-leg landing of these activities that have an associated mediolateral movement.  相似文献   

云南省高校篮球队男性运动员膝关节损伤成因调查与对策研究     

洪锡钧  王世超 《大理师专学报》2013,(3):31-34

目的：为云南省高校篮球队的训练给予一定建议,为预防和减少损伤发生,保护运动员身体健康、延长运动寿命提供参考,在各种损伤成因的基础上提出独到的对策。方法：文献资料法、走访调查法、问卷调查法。结果：导致云南高校篮球队男性运动员损伤的因素主要是准备活动不合理、负荷不合理、带伤训练或比赛、身体冲撞、技术动作不过关、身体素质欠佳、机体疲劳、注意力不集中、自我保护意识差、医务监督不到位、场地设施不规格、营养不到位、运动装备差等。结论：加强学习,提高认识;科学合理训练,强调技术动作练习;合理膳食,营养到位,休息充足;加强完善运动场地设施建设。  相似文献   

女子举重运动员膝关节受伤后的康复训练方法          下载免费PDF全文

徐栋 《体育科研》2012,33(4):89-91

举重运动员由于经常持续地承受大强度的训练,会造成不同程度的劳损和伤病。而在这些伤病中,膝关节损伤十分常见。一旦膝关节受伤,将不能接受系统的力量训练,而且会影响专项成绩,造成专项成绩的停滞不前或下降。腿部力量又是举重专项成绩提高的一个非常关键的要素,如何进行膝关节伤后腿部力量康复训练,使膝关节受伤的影响下降到最小,是一个值得探讨的问题。经过实践摸索,发现有几种较为有效的方法,可以使系统训练不受太大的影响,腿部力量下降也相应减少。  相似文献   

大学生短跑运动员膝关节肌等速向心收缩的肌力研究     

俞小亚 《丽水学院学报》2014,(2):82-85

采用德国Isomed2000等速肌力测试系统、ME6000无线肌电遥测系统,同步测试优秀大学生短跑运动员膝关节屈伸肌群在不同速度向心收缩过程中肌肉组织的力学及肌电活动特性。结果显示：大学生短跑运动员膝关节屈伸肌群在60b／s、120b／s、240b／s向心用力时峰力矩随着速度增加逐渐下降;iEMG随着角速度的增加而下降;运动员左右腿屈、伸峰力矩比值接近运动员的正常范围,发展较均衡。  相似文献   

多种模式联合镇痛在人工膝关节置换术中的应用     

孙朝军  孙哲  李红  胡志富  何宁 《大理师专学报》2014,(4):32-35

目的：比较多种模式联合镇痛与单纯术后镇痛在膝关节置换术中的镇痛效果。方法：选取2009年1月至2013年8月入院拟行人工全膝关节置换术的患者共80例,随机分为多种模式联合镇痛组（A组）及单纯术后镇痛组（B组）。分别记录两组患者术后各时间段静息痛的疼痛评分、膝关节活动度进行统计学分析。结果：A组与B组患者术后72 h内各时间段疼痛评分,差异有统计学意义（P〈0.05）,术后72 h内两组患者膝关节活动度,差异有统计学差异（P〈0.05）。结论：多种模式联合镇痛应用于膝关节置换术围手术期镇痛及促进患者术后早期膝关节主动活动是有效、安全的。具有使用安全、副作用少、易于推广的特点。  相似文献