The quadriceps straightens the knee.
股四头肌帮助伸直膝盖。
The quadriceps of the extended leg holds the knee straight.
股四头肌伸展直腿，使膝盖保持在伸直状态。
The quadriceps tendon and the patellar tendon were preserved.
保留股四头肌腱和髌韧带。
If your stance is too wide, you can't engage your quadriceps muscles well.
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 the saddle is too low you'll feel it in your quadriceps or thigh muscles.
假如坐垫过低，你的腿部肌肉会感到这点。
The quadriceps muscles down the front of the thighs shorten to straighten the knees.
股四头肌使大腿肌肉向下缩短，膝盖伸直。
The quadriceps muscles along the front of the thigh firmly contract to straighten the knees.
股四头肌处于大腿前侧，有力收缩使膝盖伸直。
Results (1) Overtraining caused the decrease of the mitochondrial protein in quadriceps femoris.
结果（1）过度训练导致大鼠骨骼肌线粒体蛋白含量降低；
Engage your quadriceps (front muscle on thigh) and extend your torso until you can melt over your legs.
使用你的四头肌(前面的大腿肌肉)并延长你的躯干直到你能够将你的腿弄软。
Quadriceps tendon is an ideal autograft alternative for posterior cruciate ligament reconstruction.
股四头肌腱是后交叉韧带重建的理想移植物。
When an MRI revealed that I'd torn 90 percent of my right quadriceps, I was flown back to Washington.
核磁共振成像显示，我90%的右侧四头肌撕裂，于是我被飞机送回华盛顿。
Steps work wonders for lifting and tightening the gluteal muscles, quadriceps, calves, and hamstrings.
爬台阶有助于提升和收紧臀肌、股四头肌，以及腿筋。
Objective: to analyze the compensatory mechanism of walking when quadriceps femoris muscle is paralyzed.
目的：研讨股四头肌麻痹时的步行代偿机制。
The action of firming and lifting your quadriceps (front thigh) muscles should also raise your kneecaps.
加强和提升股四头肌(大腿前侧)的动作也应该提起膝盖。
Conclusion This formula served as a reliable basis for the elongation of the femoral quadriceps 'tendon.
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。
Without lifting your heel up in the air, tighten your quadriceps muscle as hard as you can for ten seconds.
向上举起你的脚后跟，绷紧你的四头肌肌肉坚持10秒。
Objective:To observe the curative effect of quadriceps Femoris reestablishment on 392 cases of poliomyelitis.
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.
目的：观察392例儿麻后遗股四头肌重建术的疗效。
Quadriceps flexibility is crucial for the drop-knee move so frequently required on difficult overhanging routes.
四头肌的柔软对在悬岩要常做膝盖向下的动作很重要。
If you maintain the action of the quadriceps, the feet will follow the lift of your thighs until you are upright.
保持四头肌的紧张，双脚会一直跟随着大腿向上，直到完全直立。
The front and back leg quadriceps contract, extending the knees and stretching the lower region of the hamstrings.
股四头肌前侧和后侧收缩，伸直膝盖、伸展腘旁肌下部。
The quadriceps and gluteus maximus have the highest concentration of striated muscle fibers, a pure measure of strength.
如果进行纯粹的力量测试，四头肌和臀大肌则是人体中横纹肌纤维密度最高的地区。
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。
Methods:The tendofemoral contact between the inner surface of quadriceps and femoral condylar was observed on 50 knee specimens.
方法：对50侧膝关节的股四头肌腱内面及其与股骨髁的接触进行了观测。
Objective To explore the effect of acupuncture and moxibustion combined with quadriceps exercise on osteoarthritis of knee joint.
目的探讨针灸结合股四头肌强化训练治疗膝关节骨性关节炎的疗效。
Objective To explore the effect of acupuncture and moxibustion combined with quadriceps exercise on osteoarthritis of knee joint.
目的探讨针灸结合股四头肌强化训练治疗膝关节骨性关节炎的疗效。
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