伸肌

Objective To evaluate the influence of the frequency,the weight and the motion angle on the stress and the fatigue of the forearm extensors in repetitive wrist extending at low force loading level with surface electromyography.

目的用表面肌电描记术(surface electromyography，SEMG)评价低力量负荷下，频率、重量和运动角度3个负荷因素对重复性伸腕运动中前臂肌肉应激状态和疲劳的影响。

This scale included:① Bulbus medullae function: speech, swallowing, sal ivation, and tongue extension.② Limbs function: left arm movement, left hand movement, right arm movement, right hand movement, left leg movement, right leg movement, trunk movement, head-up, walking, and cl imbing stairs.③ Others: breathing, muscular tone, pain, and muscle discomfort.

自评量表包括：①延髓功能：语言、吞咽、口水、伸舌；②肢体功能：左上肢运动、左手运动、右上肢运动、右手运动、左下肢运动、右下肢运动、躯干运动、抬头、行走、爬楼；③其他：呼吸、肌张力、疼痛、肌肉不适感。

PNF stretching ; DOMS ; eccentric exercise ; triceps surae

PNF牵伸法；延迟性肌肉酸痛；离心运动；小腿三头肌

People with hyperextended knees usually have weak quadriceps, or do not tend to engage them fully in straight-legged poses like Tadasana and Trikonasana.

有超伸膝盖的人往往股四头肌比较弱，或者是在伸直膝盖的体式中没有完全收紧它们，比如山式和三角式。

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