目的：探讨下颈椎屈伸运动对其应力分布的影响。
Objective To Study the stress distribution of the lower cervical spine in the flexion and extension movement.
如上述研究所示，指骨骨软骨瘤最常见的伴随症状是冠状面的畸形和指间关节屈伸运动受限。
As shown in previous studies, the most frequent symptoms associated with phalangeal osteochondromas are coronal plane deformities and limitation of interphalangeal joint flexion and extension.
它的关键部件是控制人工腿膝关节屈伸运动及小腿摆动的智能控制器，其常常采用模糊控制策略。
Its crucial part is intelligent controller, which controls bend and stretch of the knee joint of artificial leg as well as shank swing and often adopts fuzzy control strategy.
随访8 ~24个月，皮瓣外观无明显臃肿，质地良好，踝关节屈伸运动良好，行走正常，仅感足背外侧麻木。
Follow-up 8 to 24 months, no significant flap bloated appearance, good texture, good ankle flexion and extension, walking normal, and only the lateral dorsal sense of numbness.
关节突关节在支撑脊柱的同时，允许脊柱屈伸旋转运动。
The facet joints support the spine while also allowing motion in terms of bending, flexing and twisting.
结果棘突钢丝在屈伸和侧弯时的运动范围可恢复完整颈椎水平，但旋转时的运动范围比完整颈椎大。
Results The range of motion (ROM) of process wire was less than that of the intact in flexion, extension, lateral bending, but not in axial rotation.
目的：等速测定不同运动水平的健康年轻人躯干屈伸肌群肌力和耐力，了解年轻人躯干肌群的肌肉功能特点。
AIM: to detect the muscle strength and endurance of healthy young people with different sport levels using isokinetic testing technique, so as to explore the characteristics of trunk muscle function.
然而，按照排球运动员起跳时的屈伸膝幅度，全蹲时的伸膝力量远不是最大的。
However, at the range of joint motion specific to a volleyball takeoff, the leg extension force generated during full squats is far from maximal.
应用联合影像学技术模拟椎体屈伸、左右侧屈、左右旋转运动时的活动度。
Motions were reproduced with use of the combined imaging technique during flexion-extension, left-to-right bending, and left-to-right twisting movements.
荡秋千的小孩除非不停地屈伸，否则秋千的运动就会因阻尼而停止；
Unless a child keeps pumping a swing, the back-and-forth motion decreases;
分析比较不同级别男子跳高运动员膝关节屈伸肌群离心收缩时峰力矩特点及差异。
The peak torque strength characteristics of eccentric of knee muscles of different levels of high jumpers was analyzed, using the German ISOMED2000 Isokinetic test device.
分析比较不同级别男子跳高运动员膝关节屈伸肌群离心收缩时峰力矩特点及差异。
The peak torque strength characteristics of eccentric of knee muscles of different levels of high jumpers was analyzed, using the German ISOMED2000 Isokinetic test device.
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