要伸展股四头肌，你要运动你的跟腱。
大腿前侧的股四头肌使膝关节伸直。
The quadriceps at the front of the thigh straightens the knee.
股四头肌和大腿前侧使膝盖伸直。
The quadriceps along the front of the thigh straightens the knee.
股四头肌使后腿膝盖伸直。
股四头肌帮助伸直膝盖。
股四头肌使大腿肌肉向下缩短，膝盖伸直。
The quadriceps muscles down the front of the thighs shorten to straighten the knees.
股四头肌伸展直腿，使膝盖保持在伸直状态。
目的：研讨股四头肌麻痹时的步行代偿机制。
Objective: to analyze the compensatory mechanism of walking when quadriceps femoris muscle is paralyzed.
通过轻轻地将大腿骨压向地面来收缩股四头肌。
Contract your quads by gently pressing your thighbones down into the floor.
股四头肌处于大腿前侧，有力收缩使膝盖伸直。
The quadriceps muscles along the front of the thigh firmly contract to straighten the knees.
爬台阶有助于提升和收紧臀肌、股四头肌，以及腿筋。
Steps work wonders for lifting and tightening the gluteal muscles, quadriceps, calves, and hamstrings.
冷身5分钟，拉伸小腿肌肉，腿筋和股四头肌，结束。
Finish with 5 minutes of cooldown stretching of the calf muscles, hamstrings, and quads.
目的：观察392例儿麻后遗股四头肌重建术的疗效。
Objective: To observe the curative effect of quadriceps Femoris reestablishment on 392 cases of poliomyelitis.
高负荷运动组股四头肌组织睾酮水平在生长突增期升高。
The quadriceps femoris t of the high intensity group increase in the growth spurt period.
股四头肌前侧和后侧收缩，伸直膝盖、伸展腘旁肌下部。
The front and back leg quadriceps contract, extending the knees and stretching the lower region of the hamstrings.
加强和提升股四头肌(大腿前侧)的动作也应该提起膝盖。
The action of firming and lifting your quadriceps (front thigh) muscles should also raise your kneecaps.
如果你站立的姿势太宽，就不能很好地加强股四头肌的肌肉。
If your stance is too wide, you can't engage your quadriceps muscles well.
循环拉伸跟腱，股四头肌，小腿肌，后背的肌肉和肩部的肌肉。
Cycle through hamstring, quadricep, calf, lower back and shoulder stretches.
结论经验公式可为股四头肌肌腱延长术提供可靠的理论依据。
Conclusion This formula served as a reliable basis for the elongation of the femoral quadriceps 'tendon.
出于这个原因，被避免做充分延长膝关节和股四头肌主动练习。
For that reason, full extension of the knee and active quadriceps exercises were avoided.
前言： 目的：观察392例儿麻后遗股四头肌重建术的疗效。
Objective:To observe the curative effect of quadriceps Femoris reestablishment on 392 cases of poliomyelitis.
训练运用股四头肌来伸直腿的最好的方法之一是腿伸直坐在地板上。
One of the best ways to start training the quads to work in the straight-knee position is by sitting on the floor with your legs stretched out straight in front of you.
下坡跑有好处，但是容易伤着您的股四头肌。以下是如何避免这种伤害。
Downhill running has its upsides but kills your quads. Here's how to avoid the burn.
本文用一个粘弹性流变学模型来模拟股四头肌作等长收缩时的松驰过程。
A viscoelastic rheological model was proposed to simulate the relaxation process of isometric knee extension.
在你的膝已经伸展出一阵子之后，在相同的位置做10次股四头肌收缩。
After your knee has stretched out for a while, perform a set of ten quadriceps contractions with your leg in the same position.
在你的膝已经伸展出一阵子之后，在相同的位置做10次股四头肌收缩。
After your knee has stretched out for a while, perform a set of ten quadriceps contractions with your leg in the same position.
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