The quadriceps muscle brings your knee into full extension.
四头肌肌肉让你的膝进入完全的延长。
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。
It doesn't mean you can't climb mountain but first you need to strengthen up the quadriceps muscle in terms of strength and muscular endurance so that your knee is stable when you are climbing.
这并不表示您不能爬山，但首先您需要用强化肌肉力量和肌肉耐力的方式来强化四头肌，这样在您爬山的时候膝盖就能稳定。
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 Stretch: the quadriceps is the muscle in the front of the thigh, important for lifting your knees and increasing your speed.
拉伸股四头肌：股四头肌是大腿前侧的肌肉，对于你提升膝盖和提高速度很重要。
Some surgeons believe that the subvastus approach completely avoids damage to the quadriceps mechanism and therefore would be associated with improved muscle function.
有些外科医生认为下股肌入路可以完全避免股四头肌机能的毁坏，因此可以提高肌肉的功能。
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 technique of cytochemistry was used in our study to test quantitatively the chemical components of different types of muscle fibres in the quadriceps of mice after exhaustion exercise.
采用组织化学技术形态定量对运动疲劳大鼠股四头肌不同类型肌纤维的成分进行定量分析。
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。
Objective: To investigate the electricity quantity change of the quadriceps femoris muscle of knee osteoarthritis patient during some training exercise.
目的：研究肌发电量在膝关节骨关节炎患者股四头肌肌力训练中的变化情况及股四头肌的详细变化情况。
Objective: To investigate the electricity quantity change of the quadriceps femoris muscle of knee osteoarthritis patient during some training exercise.
目的：研究肌发电量在膝关节骨关节炎患者股四头肌肌力训练中的变化情况及股四头肌的详细变化情况。
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