前屈的

The lumbar vertebra anatomy characteristic is every two neighboring lumbar vertebrae,and behind two joints constitutes after the intervertebral disc,its acies articularis nearly in sagittal plane,when waist anteflexion this activity is big,easy to create this joint damage.

腰椎的解剖学特点是每两个相邻的腰椎，由椎间盘和后面两个关节构成，其关节面近于矢状面，在腰部前屈时该活动度较大，容易造成该关节损伤。

A three-dimension FEM model of normal L4-5 was built, and the lumbar facet joints were treated as to contact with each other. Various motions of L4-5 were simulated by changing the loads: anteflexion, retroversion, right rotation, right bending and longitudinal compression.

本文建立了L4-5正常运动节段的有限元模型，将两小关节面处理为接触模型，分析了小关节面在腰椎前屈、后伸、侧弯、旋转及压缩运动状态下的受力情况，发现小关节在承载方面作用较大，特别是抗旋转运动过程中作用更明显。

METHODS: The lumber vertebrae of L1-S1 were used to establish 6 trial models (3 models each of L3-4 and L4-5). Following nucleotomy, artificial nucleus alone replacement was performed and the models were exposed to moment of couple test of 6.0 N?

将3具腰椎标本制成6个运动节段的试验模型，L3~4及L4~5各3个，制成椎间盘髓核摘除后单纯人工髓核置入模型，施加前屈后伸、左右侧弯和左右轴向旋转6个方向6.0 N？

In order to understand the lines calisthenics 3-5 grade of schoolchild the effects of physical and psychological health, this paper, methods of documentation,experimental method, a questionnaire survey method, such as mathematical statistics, Dalang of Dongguan City shui lin school students in grades 3-5 research; 3-5 of schoolchild calisthenics training and physical fitness of students measured before and after training (height, weight, vital capacity, Sit and Reach, standing long jump, pulse) and psychological health; The results show that the contact schoolchild to promote the physical and psychological health, and social adaptability significant effect.

为了解健美操练习对小学3-5年级学生身心健康的影响，本文采用文献资料法、实验法、数理统计法等，对东莞市大朗水霖学校3-5年级学生进行了研究；对小学三到五年级学生进行健美操训练，并测定训练前后学生身体素质（身高、体重、肺活量、坐位体前屈、立定跳远、脉搏）和心理健康状况；结果表明，健美操练习对促进小学生身心健康以及社会适应能力方面有显著效果。

Objective To study the effect of the rotation manipulation on degenerate lumbar disc in three anteflexed levels.

目的 探讨不同前屈状态下坐位腰椎旋转手法对椎间盘的影响。

Results: The posterior margin separation of centrums was more obvious than anterior margin separation in cases with traction from anteflection position of 10 degrees, while the most increases of intervertebral space occurred in cases with traction from neutral position.

颈椎牵引在中立位时对椎间盘的轴向作用最大，前屈位时受力集中在椎体后缘，后伸位转移到后侧小关节。

M were applied to produce six kinds of pure moment of force and to create six kinds of movement of the lumbar spine in flexion, extension, left and right lateral bendings as well as left and right axial rotations.

在双侧小关节分级切除状态下，后路螺纹椎间融合器均能显著降低L4-L5节段的前屈、左右侧弯运动范围，但后伸、左右轴向旋转运动只能恢复到完整状态水平。

After discectomy, partial laminectomy and bilateral medial 1/3 facetectomy, the ROM of L4-L5 segment was significantly increased in flexion, extension, left and right lateral bendings as well as left and right axial rotations (relative ROM 1. 34, 1. 94, 1. 19, 1. 34, 2. 23, 1. 52 seperatively).

随着双侧小关节逐级切除，各组运动的运动范围明显呈逐渐增加趋势，双侧小关节内侧1/3切除和双侧小关节全切除状态之间在前屈、左右侧弯、左右轴向旋转运动方面有显著性差异。

Objective:The comparision of the torsional and flectural intensity of the four kinds of fixations in cervical spine.

目的：比较四种颈椎内固定方法的旋转和前屈强度。

The amount of shoulder rotation stretching and rope rolling exercise were significantly correlated with the angles of shoulder flexion, abduction, and external rotation. These two exercises may be the most important exercises to prevent the disorder of shoulder function after MRM.

转绳运动、拉肘运动运动量与肩关节前屈、外展、外转角度恢复有显著正相关，转绳运动及拉肘运动运动，可作为个案居家手臂复健运动必须执行的项目。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐