The fingers are flexed at the interphalangeal joints and can't abduct or adduct.

指间关节屈，手指无法外展内收。

Larger fetuses and those that aren't completely flexed have more difficulty making it through the passage.

大一点的胎儿和那些不能完全屈的胎儿更难通过产道。

Also though there's fetal attitude, which refers to the way that the fetal body is flexed, not its personality.

另外，胎姿势，指胎儿身体呈屈的姿势，不是指性格。

This episode is about simulating a beautiful phenomenon in nature, the buckling and coiling effect of honey.

这一集是关于模拟一种美丽的自然现象——蜂蜜的屈和卷绕效果。

There was a silence in which Crookshanks stretched luxuriously flexing his claws.

有一儿谁也没说话，这时克鲁克山大大地伸了个懒腰，把四个爪子屈了一下。

This causes all the fingers to stay in a flexed position, so it's also called total claw hand.

这种使所有手指呈屈，也被称为“完全爪型手”。

The isometric was an elbow flexion, aka a bicep curl, at maximal contraction held for 3 seconds 10 times at a 20-degree flexion.

精力训练是做肘部屈，也就是二头肌弯，以极限收缩保持3秒，以20度屈10次。

You don't need your brain for newborn sucking, limb flexation in withdrawal from pain.

你不需要你的大脑来吸吮新生儿，屈肢体以摆脱疼痛。

The most common symptom is weakness or paralysis in the intrinsic muscles of the hand, causing the hand to flex into a claw.

最常见的症是手内在肌的乏力或瘫痪导致手部屈呈爪型。

For instance, some kinetic and shear forces are significantly dampened, which leads to a loss of detail for buckling effects with traditional techniques.

例如，一些动力学和切变力的量被显著抑制，导致传统技术中屈效应的细节损失。

Forearm Flexion: Lift your forearm while holding a light weight or a water bottle, focusing on using your forearm muscles.

前臂屈：举着轻量级或水瓶抬起前臂，专注于使用前臂肌肉。

When labor starts, the fetus is normally fully flexed, which means chin is on the chest, and they have a rounded back with flexed arms and legs.

但分娩开始时，胎儿正常情况下完全屈，指颏部贴近胸壁，四肢屈，背部呈圆形的。

We had an earlier episode on honey buckling, and as every seasoned Fellow Scholar already knows, the link is available in the video description.

我们早期的节目中有一集是关于蜂蜜的屈性，如同每个经验丰富的学霸知道的，它的链接在视频描述中可用。

Think about how hard it'd be to walk when your adductor muscles were always partly flexed, which causes your knees and thighs to constantly touch.

想一下当你的内收肌肉总是部分屈时，你的膝盖和大腿不断地接触，走路变得多么的困难。

These muscles include the flexor digitorum profundus which flexes the fingers at the interphalangeal joints, and the extensor digitorum which hyperextend them at the metacarpal phalangeal joint.

前臂肌群包括指深屈肌（在指间关节处使手指屈）及指伸肌（在掌指关节处使手指过伸）。

If that bending motion decreases the angle of the joint and brings those bones together, like when I bend my arm together, that movement is called flexion.

如果弯运动减少关节的角度，使骨骼结合在一起，就像我弯手臂一样，这种运动称为屈。

For example, if you are doing bicep curls, blood must increase to your bicep muscles so we see the arteries feeding these muscles dilating.

例如，如果您正在做二头肌屈，血液必须增加到二头肌肌肉，所以我们看到供养这些肌肉的动脉扩张。

Finally, both the ulnar and median nerves innervate the lumbricals, which are 4 muscles that extend the fingers at the interphalangeal joints, and keep them flexed at the metacarpal phalangeal joints.

最后，尺神经和正中神经都支配蚓肌，这四条蚓肌能使指间关节的手指伸直，同时掌指关节保持屈位。

Hip Flexion and Extension: In a kneeling position, alternate between leaning forward to stretch the front of the hip and sitting back to stretch the back of the hip.

髋关节屈和伸展：在跪姿中，交替向前倾以伸展髋关节前部和向后坐着以伸展髋关节后部。

One study in 2020 showed that dorsiflexion range of motion, or range of motion of the ankle, had a moderately sized 18.4% increase after using the massage gun on the calf muscles for just 5 minutes beforehand.

2020年的一项研究表明，提前 5 分钟在小腿肌肉上使用按摩枪后，背部屈活动范围或踝关节活动范围增加了 18.4%。