Influence of sex and limb dominance on lower extremity joint mechanics during unilateral land-and-cut manoeuvres     

Joshua T. Weinhandl  Bobbie S. Irmischer  Zachary A. Sievert  Kevin C. Fontenot 《Journal of sports sciences》2017,35(2):166-174

Limb dominance theory suggests that females tend to be more one-leg dominant and exhibit greater kinematic and kinetic leg asymmetries than their male counterparts, contributing to the increased risk of anterior cruciate ligament injury among female athletes. Thus, the purpose of this study was to examine the influences of sex and limb dominance on lower extremity joint mechanics during unilateral land-and-cut manoeuvres. Twenty-one women and 21 men completed land-and-cut manoeuvres on their dominant limb as well as their nondominant limb. Three-dimensional kinematics and kinetics were calculated bilaterally for the entire stance phase of the manoeuvre. Women performed land-and-cut manoeuvres with altered hip motions and loads as well as greater knee abduction at touchdown compared to men. Dominant limb land-and-cut manoeuvres where characterised by decreased hip flexion at touchdown as well as decreased hip flexion and adduction range of motion compared to nondominant land-and-cuts regardless of sex. The observed sex differences are consistent with previous research regarding mechanisms underlying the sex disparity in anterior cruciate ligament injury rates. However, observed differences regarding limb dominances appear somewhat arbitrary and did not suggest that the dominant or nondominant limb would be at increased risk of anterior cruciate ligament injury.  相似文献   

国产气垫夹板治疗踝关节损伤的临床观察     

李国平  李旭坤  贾林 《体育科学》1998,18(6):64-68

运用国产气垫夹板对37例急性踝关节损伤进行了治疗效果的观察和分析。结果证实:国产气垫夹板对踝关节扭伤后所致的韧带损伤和稳定性骨折均有明显的治疗作用;踝关节气垫夹板固定时间相对较短,韧带拉伤平均18天,稳定性骨折平均31天;国产气垫夹板限制踝关节内翻和外翻,但不影响踝关节的背伸和跖屈运动,患者可进行早期关节活动。  相似文献   

关节镜下6股髌韧带重建前交叉韧带手术的护理配合     

莫丽平  谭云燕  罗冬兰  吕廉威  李捷琼  黄秋溪 《大众科技》2015,(6)

目的:总结了关节镜下6股髌韧带重建前交叉韧带术的手术配合要点。方法:对38例关节镜下6股髌韧带重建前交叉韧带术手术患者给予充分术前准备,巡回护士术中严密观察病情变化,正确使用气压止血带和各种关节镜精密仪器,器械护士积极主动配合手术步骤。结果:手术配合默契,无并发症发生,伤口一期愈合,膝关节功能恢复良好。结论:高度重视术前准备,术中合理有效的护理措施,科学熟练的手术配合是保证手术成功的关键。  相似文献   

Learning of musculoskeletal ligament stress testing in a gross anatomy laboratory     

Krause DA  Youdas JW  Hollman JH 《Anatomical sciences education》2011,4(6):357-361

Human anatomy in physical therapy programs is a basic science course serving as a foundation for subsequent clinical courses. Integration of anatomy with a clinical emphasis throughout a curriculum provides opportunities for reinforcement of previously learned material. Considering the human cadaver laboratory as a fixed cost to our program, we sought opportunities to add value to the resource via vertical integration into a clinical skills course taught later in the curriculum. We designed an opportunity for second-year physical therapy students to revisit the human anatomy laboratory to study select clinical musculoskeletal tests and the associated anatomy in a clinically relevant context. Students performed select orthopedic ligament test on human cadavers, then incised specific structures and repeated the tests. Students were able to feel and visualize the function of pertinent anatomy associated with the clinical tests. Ninety-five percent of respondents reported that the ligament stress testing experience enhanced their understanding of orthopedic clinical tests with 91% reporting an enhanced understanding of anatomy related to specific clinical tests. Likewise, the experience was perceived as enjoyable and valuable with 86% of respondents reporting the experience as enjoyable and 100% responding the experience should continue as part of the curriculum.  相似文献   

女运动员前交叉韧带的损伤及预防   总被引：3，自引：0，他引：3  

朱蔚莉  戴昕  李秀华 《首都体育学院学报》2004,16(1):86-88,95

本文综述了女运动员前交叉韧带的损伤因素，并针对这些因素提出了相应的预防措施。  相似文献   

太极拳运动中膝关节损伤机制和预防   总被引：6，自引：0，他引：6  

朱雅敏 《体育与科学》2002,23(2):59-60,71

膝关节损伤在太极拳运动中较常发生，它的损伤与太极拳运动的动作姿势、技术动作、下肢肌肉的收缩力和韧带的牵拉力等因素有密切关系。研究太极拳运动中膝关节损伤的原因，是为了更好而有效地达到预防膝关节损伤的目的，也为改进教学、训练的方式方法提供依据。  相似文献   

前交叉韧带重建术中骨隧道定位的应用解剖   总被引：1，自引：0，他引：1  

李旭升  陈根强  付晓艳  章良忠 《金华职业技术学院学报》2003,3(1):51-52,98

目的:为关节镜下自体髌腱中1/3重建前交叉韧带术中的骨隧道定位提供解剖学依据。方法:在18例膝关节标本上,标出前交叉韧带的附着点、重建点的位置,测量重建点的距离。结果:胫骨隧道重建点位于胫骨髁间棘前内侧缘前交叉韧带后方7mm处,股骨隧道重建点位于髁间窝外侧壁从前到后7mm,右膝为11点,左膝为1点处。关节内前交叉韧带移植重建长度为22.5±0.9mm。结论:前交叉韧带重建术中选择合适的重建点,获取标准的股骨、胫骨隧道对术后关节功能的恢复和稳定具有重要的临床意义。  相似文献   

运动员膝关节前交叉韧带损伤的机制及重建治疗   总被引：4，自引：0，他引：4  

王芝琴  李友寒 《湖南科技学院学报》2007,28(4):177-179

膝关节为全身最大、最复杂的关节,运动中膝关节比较容易受伤,其中前交叉韧带损伤是临床上较为常见又严重的运动损伤。前交叉韧带的功能解剖基础、损伤的发生率、损伤机制、手术重建治疗方法等对前交叉韧带损伤的了解和进行治疗的功能重建有非常重要的意义。本文将有关文献资料进行整理,为前交叉韧带损伤提供科学的理论知识。  相似文献   

The effects of limb dominance and a short term,high intensity exercise protocol on both landings of the vertical drop jump: implications for the vertical drop jump as a screening tool     

Enda F. Whyte  Patrick Kennelly  Oliver Milton  Chris Richter  Siobhán O’Connor  Kieran A. Moran 《Sports biomechanics / International Society of Biomechanics in Sports》2018,17(4):541-553

The effectiveness of vertical drop jumps (VDJs) to screen for non-contact ACL injuries is unclear. This may be contributed to by discrete point analysis, which does not evaluate patterns of movement. Also, limited research exists on the second landing of VDJs, potential lower limb performance asymmetries and the effect of fatigue. Statistical parametric mapping investigated the main effects of landing, limb dominance and a high intensity, intermittent exercise protocol (HIIP) on VDJ biomechanics. Twenty-two male athletes (21.9 ± 1.1 years, 180.5 ± 5.5 cm, 79.4 ± 7.8 kg) performed VDJs pre- and post-HIIP. Repeated measures ANOVA identified pattern differences during the eccentric phases of the first and second landings bilaterally. The first landing displayed greater (internal) knee flexor (η² = 0.165), external rotator (η² = 0.113) and valgus (η² = 0.126) moments and greater hip (η² = 0.062) and knee (η² = 0.080) flexion. The dominant limb generated greater knee flexor (η² = 0.062), external rotator (η² = 0.110) and valgus (η² = 0.065) moments. The HIIP only had one effect, increased thoracic flexion relative to the pelvis (η² = 0.088). Finally, the dominant limb demonstrated greater knee extensor moments during the second landing (η² = 0.100). ACL injury risk factors were present in both landings of VDJs with the dominant limb at potentially greater injury risk. Therefore, VDJ screenings should analyse both landings bilaterally.  相似文献   

A novel approach to the dissection of the human knee     

F. Richard Clemente  Philip A. Fabrizio  Michael Shumaker 《Anatomical sciences education》2009,2(1):41-46

The knee is one of the most frequently injured joints of the human body with injuries affecting the general population and the athletic population of many age groups. Dissection procedures for the knee joint typically do not allow unobstructed visualization of the anterior cruciate or posterior cruciate ligaments without sacrificing the collateral ligaments. In many cases, the relationships of the intraarticular structures are lost as dissection systematically removes superficial structures to gain access to deeper structures. The authors present an alternative technique for dissection of the human knee joint that allows maximal visualization of intraarticular structures such as the cruciate ligaments and menisci with minimal disturbance to the tibial and fibular collateral ligaments, thus preserving the relationships of the ligamentous and intraarticular structures. Anat Sci Ed 2:41–46, 2009. © 2009 American Association of Anatomists.  相似文献