查询词典 biomechanics

But in early resorptive phase in GSB group. The change of BMD, BGP, D-Pyr/Cr and biomechanics index in OVX-PII group were the same as that in OVX-PI group, but the rising range of compressive strength limit in lumbar spine and bend load of femur is bigger than that of JGG, and GSB group. Dynamics osteoblast appeared in large numbers on the surface of os, we can observe the transforming process from osteoblast to osteocyte.

同期预防Ⅱ组的BMD、BGP、尿D-Pyr/Cr及生物力学指标的变化大体维持在预防用药12周时水平，但从数字上看腰椎椎体的压缩强度极限和股骨的弯曲破坏荷载两项的上升幅度均大于健骨颗粒组和骨松宝组，预防II组骨质表面出现成群活跃的成骨细胞，可见成骨细胞往骨细胞转化过程。

Biomechanics ;; Nursing Care ;; Sacrococcygeal Region ;; Stents ;; Friction ;; Pressure ;; Nursing Methodology Research ;; Patient Care Planning

生物力学；；护理；；骶尾部；；支架；；摩擦；；压力；；护理方法学研究；；病人医疗护理计划

The purpose of this article: to study the force-testing method of the side-kick in free-fighting, and develop the new field of three dimensional force-testing according to many experiments by means of three-dimensional force plate; to discover the kinematics rules and characteristics of the side-kick in free-fighting through the experimental study on the side-kick's biomechanics and kinematics characteristics of 18 excellent free-fighting athletics coming from Shandong Province, which will provide reliable kinematics indexes and parameters for diagnosing and improving the motion skills of free-fighting side kick,and for free-fighting teaching and training, further systemize and scientize the theory research of free-fighting motion.

研究目的：运用生物力学的研究方法，通过KISTLER 三维测力平台测力的实验，研究了散打侧踹腿动作的力量测试方法，开拓了散打侧踹腿动作三维力学测试的新领域；通过对山东省18 名一线优秀散打运动员侧踹腿动作力学特征和运动学特征的研究，揭示了散打侧踹腿动作的运动规律和特征，为诊断、改进和提高侧踹腿动作的技术以及散打教学和训练提供可靠的运动学指标和参数，使散打运动的理论研究进一步系统化、科学化。

Through simulation of the real process of thomcolumbar burst fracture and use of modem dynamics techniques, the present study was (1) to investigate the kinetic relationship between structural damage and impact energy absorption and dynamics mechanism of thoracolumbar burst fracture by quantitative analysis of various injured segments;(2) to explore the instability mechanism of L1 vertebral burst fracture and its injury threshold by three-dimensional analysis of the injured segment with stereophotogrammetry in combination of transient physical parameters, anatomy and image;(3) to explore the corresponding relationships between impact energy, geometry parameters and biomechanics by geometry and biomechanical analysis of thoracolumbar burst fracture, which may provide an objective standard for evaluation of spinal injury severity and experimental evidence for adoption of biomechanical treatment in clinic;(4) to evaluate the fixation effect of different instruments and the effect of intervertebral bone graft on segment fixation by analysis of the threedimensional stability of different internal fixation instruments and their decompression of the spinal canal, which may provide experimental evidence for therapeutical selection for thoracolumbar burst fracture in future; and finally to investigate the effect of various instrument fixation on dynamical characteristics by comparison and quantitative analysis of frequency and amplitude responses, which may provide certain theories and experimental evidence for application of vibration test to judge the stability of the spine.

本研究从胸腰段脊柱爆裂骨折发生的实际过程出发，以现代动力学检测及计算机多通道高性能数据采集分析系统等高新技术为基础，实时量化分析损伤节段的工程参数，揭示了结构破坏与能量吸收的变化规律，探讨了胸腰段脊柱爆裂骨折的瞬态损伤机制；利用三维立体摄像技术，对不同损伤程度的节段进行三维运动分析，结合瞬态物理参数、影像学和病理解剖，明确了〓椎体爆裂骨折的失稳机制及损伤阈值；通过对胸腰椎爆裂骨折的几何学变化及生物力学分析，明确了撞击能量与几何参数、几何参数与生物力学的相应关系，为评判脊柱损伤程度提供了客观标准，为治疗中采取适宜的生物力学方法提供了实验依据；通过对比分析不同内固定器械的三维稳定性和对椎管的减压作用，评价不同器械的复位固定作用，同时比较椎体间植骨对节段固定作用的影响，为今后临床胸腰段脊柱爆裂骨折的治疗选择提供依据；利用振动测试与分析技术，比较及量化分析了不同致伤状况的频幅响应特征，比较分析了各种器械固定对动力学特性的影响，为今后临床建立基于振动测试与分析技术判断脊柱稳定性的诊断方法，提供了一定的理论和实验依据。

Then we compare two groups' samples in X-ray, pathology and biomechanics tests. After these steps, 30 three-unit centrums were separated randomly into the test group and the comparing group.

将正常的与脱钙后三联椎体在X线下拍片对照观察、大体病理剖面对照观察、并在电子万能材料试验机下进行耐压力测试，记录对比测试结果。

Methods 32 rats were euthanized and femurs were removed by disarticulated. The left femurs were heated for 3 minutes, 5 minutes, 10 minutes and 15 minutes with the microwave and the histochemical assay for special lactate dehydrogenase activity was evaluated. The rat bone's biomechanics and the content of calcium tests were carried out.

应用 微波对实验组股骨分别加热3、5、10、15min后，用特殊的乳酸脱氢酶活性染色，判断骨、软骨细胞的活力；用Instron万能材料试验机测定股骨的生物力学并同步记录；用原子吸收分光光度仪测定股骨钙的含量。

Objective: This experimental study is based on earlier animal and clinical experiment, drawn thinkings of combinations with two methods and pursued a synthesis method of high-efficiency, cheap and convenient calcium and exercise treatment. We adopt taking natural-clam's casing powder and preconcereted-intensity excises to intervene shape of osteoporosis in gelded rats, than we compare the indexes such as the biomechanics indexes of the right femur and the third lumbar vertebrae, the weight and uterus quotiety of rats before the experiment to these indexes after the experiment. We hope to find better and suitable way to prevent and treat the postmenopausal osteoporosis and offer reference for clinic.

目的 本实验的主要目的是在前期动物实验的基础上，引入两种方式联合干预的思维，立足于探求既高效又经济、方便的补钙剂加上与运动疗法相联合的方式，对切除雌性大鼠卵巢而复制成的骨质疏松症模型进行服用天然贝类蛤蜊壳粉，同时施以预定强度的运动刺激的方法，再通过试验前后大鼠体重、子宫指数的变化及大鼠股骨和椎体生物力学指标的对比变化进行分析，以期探索出防治绝经后骨质疏松症的更好的、更适宜于大众的手段；并为天然钙剂和运动联合作用防治PMOP提供参考。

For example, since biomechanics requires muscle force against a stationary object to produce bodily movement, muscle contractions must occur; however, the typical person overexerts himself on simple, preprogrammed movements, such as climbing stairs, because of a lack of efficient movement.

例如，生物力学要求肌肉通过对固定物体发力来推动身体的位移，肌肉收缩是必然的。

For example, since biomechanics requires muscle force against a stationary object to produce bodily movement, muscle contractions must occur; however, the typical person overexerts himself on simple, preprogrammed movements, such as climbing stairs, because of a lack of efficient movement.

生物力学要求肌肉通过对固定物体发力来推动身体的位移，肌肉收缩是必然的。

METHODS: Eight fresh patellae specimens were divided into two groups at random, AO steel wire group (n = 2) and absorbable tension band group (n = 6) to create models of transverse fractures, which were separately fixed by absorbable tension band, steel wire tension band + Kirschner wire to measure their biomechanics function. If fracture gap reached 1.0 mm, the fixation failed.

随机分成AO钢丝组2个和可吸收张力带组6个，制成横断骨折模型，分别用可吸收张力带、钢丝张力带加克氏针进行内固定，测定它们的生物力学性能，骨折端分离1.0 mm为固定失效。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。