The tiny fibers that are inside them are being torn apart as muscle soreness develops.
随着肌肉酸痛的增强，肌肉内部的细小纤维正被撕裂。
And they had more of the muscle fibers that boost endurance.
而且他们有更多的能支持耐力的肌肉纤维。
While you're lounging on the beach in Bermuda, your body is repairing muscle fibers, boosting blood volume, and building capillaries to help transport blood more efficiently.
当你在百慕大的沙滩上漫步的时候，你的身体正在修复你的肌肉纤维，增加血液体积，构建运输血液更加有效的微血管。
Running fast while fatigued forces your body to recruit muscle fibers that might otherwise go untrained.
在疲劳状态下快速奔跑会促使你的肌肉纤维得到增强，否则就得不到锻炼。
They have muscle fibers of various kinds that contract and expand at varying speeds and strengths.
他们有许多不同的肌纤维，这些肌纤维能够以不同的速度伸缩。
Gunderson's team examined individual cells in the wasting muscles and found that there is apoptosis going on, but that other cells are dying, not the muscle fibers or their extra nuclei.
甘德森的小组检查了老化肌肉中的细胞个体，发现虽然的确有一些细胞死亡，但另一些细胞却没有完全死去，肌肉纤维或增加的细胞核也没有消失。
They claim that by stretching, muscle fibers are lengthened and destabilized, making them less prepared for the strain of exercise.
他们声称通过伸展，肌肉纤维会被拉伸，原有的平衡被打破，使得它们来不及应对接下来紧张的锻炼。
They report online tomorrow in the Journal of Experimental Biology that the muscle fibers of the calves of women who wear high heels are 13% shorter than those of women who wear flats.
在《实验生物学杂志》明天的在线报道中，他们称穿高跟鞋的女性的小腿肌肉纤维比穿平底鞋女性短13%以上。
When muscle fibers are damaged, the cells can begin leaking potassium and phosphorous into the bloodstream.
当肌纤维损伤后，破裂细胞中的钾和磷泄漏入血液中。
As noted, we lose muscle mass with age. Especially quick to deteriorate are fast-twitch muscle fibers, which power quick, explosive movements.
如上而言，随着年纪的增大我们的肌肉会失去力量，尤其是快速收缩的肌肉纤维更为明显，这部分纤维让我们跑得快，启动有爆发力。
For example, when an athlete trains, her muscle fibers break down.
例如，运动员训练时他的肌纤维会受损。
Strength training increases the size of these muscle fibers.
力量训练增加了这些肌肉纤维的尺寸。
We have two basic types of muscle fibers, slow twitch and fast twitch.
我们每个人有两种基本的肌肉纤维，慢抽搐和快抽搐肌纤维。
An mtrp is a hyperirritable spot in a taut band of skeletal muscle fibers with characteristics related to central sensitization in the spinal cord.
肌筋膜激痛点是骨骼肌肉纤维里紧绷肌带上的过度激活点，伴随著与脊髓里中枢性敏感化有相关联的特征。
Connective tissue surrounds each muscle fiber and binds muscle fibers into muscle bundles.
结缔组织在每个肌纤维周围约束肌纤维进入肌肉束。
It blocks motor neurons from affecting muscle fibers.
它的阻止了运动神经元去影响肌肉纤维。
There are two types of muscle fibers in the dog's body.
有两种类型的肌肉纤维在狗的身体。
An animal is born with a constant number of muscle fibers. Only the size changes with age, nutrition, and exercise.
动物出生时就具有了常量肌纤维，只是随着年龄、营养和锻炼发生大小变化。
One of the contractile elements in skeletal, cardiac, and smooth muscle fibers.
存在于骨骼肌、心肌和平滑肌中的一种可收缩纤维。
We've done years of work in showing that excess alarm or stress chemicals can literally burst heart muscle fibers.
我们已经做了多年研究，证明过分忧虑或紧张所产生的化学物质的确会损伤心肌纤维。
Cross-sectional fiber area and maximum fiber width are reliable indexes for muscle function compared with number of muscle fibers.
肌纤维横截面积和最大宽度是反映肌肉功能状态的较为可靠的指标。
When the worm is prodded, stretching the structural proteins in muscle fibers, the linking spring is stretched, and the worm fluoresces in a different color.
蠕虫受刺激时，肌纤维结构蛋白被拉伸，其连接弹簧也被拉伸，蠕虫的荧光颜色发生改变。
Nerve signals may travel through nerve or muscle fibers at speeds as high as 200 miles per hour.
神经信号在神经或肌肉纤维中的传递速度可以高达每小时200英里。
By contrast, "Land animals - like ourselves - are always working to keep themselves upright and keep their shape," Mouritsen says, so our muscle fibers are thicker, tougher and firmer.
莫里特森说，相比之下，“陆地动物——比如我们人类——需要一直保持站立的姿态。”所以我们的肌肉纤维更密集、更强健、更结实。
In addition, through a complex sequence of events, your immune system also AIDS repair by boosting the protein content of these damaged muscle fibers.
另外，经过一系列复杂而有顺序的过程，你的免疫系统也会依靠增加破坏区域的肌肉纤维来帮助修复。
A variety of key aerobic enzymes will also increase. More myoglobin will be found in the skeletal muscle fibers.
有氧跑可以增加各种关键的有氧酶，还可以增加骨骼肌肉纤维的肌红蛋白。
If an athlete trains mainly for speed, those muscle fibers in the middle will act as if they are high-intensity ones, but endurance training will make them behave more like the low-intensity fibers.
如果一个运动员主要是训练速度的，那些介于二者之间的肌肉纤维将像高强度肌肉纤维一样动作，而进行耐力训练将使它们的动作更像低强度肌肉纤维。
If an athlete trains mainly for speed, those muscle fibers in the middle will act as if they are high-intensity ones, but endurance training will make them behave more like the low-intensity fibers.
如果一个运动员主要是训练速度的，那些介于二者之间的肌肉纤维将像高强度肌肉纤维一样动作，而进行耐力训练将使它们的动作更像低强度肌肉纤维。
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