Many treadmills are padded, making them a good option if you're overweight or are injury-prone (especially with knee issues) and want to decrease the impact.
许多跑步机都是平的，这让他们成为一个很好的选择如果你是超重或者是容易受伤的特别是有膝盖问题的，并且想要减小影响。
The unshod runners' style causes more flex in the foot's springlike arch ankle and knee and engages more foot and calf muscles blunting the impact on the body and making for a more comfortable "ride."
赤足的姿势引起了足部海面拱体、踝骨和膝盖更大的弯曲，更多地利用了足部和腿肚上的肌肉的力量，从而减弱了冲击对人体产生的影响，使人跑起来更舒服些。
As your foot strikes the ground, your knee should be slightly flexed so that it can bend naturally on impact.
当脚接触地面时，您的膝关节应该略微弯曲，一旦受力的冲击，可以自然地进一步弯曲。
Running, first floor to light, elastic, because if the feet heavily to the ground, the huge impact, knee joint in the long run will harm the legs.
跑步时，首先落地要轻，有弹性，因为如果脚重重地落到地上，对膝盖关节冲击力大，时间长了就会对腿造成伤害。
For the hard road, to use better elasticity of sports shoes, running to reduce the impact of knee to face.
对于较硬的路面，要选用弹性较好的运动鞋，减小跑步运动时地面对膝盖的冲击。
By running his knee at the ball at different speeds, he was able to control the amount of force he expended through impact.
同时籍着变化右膝奔球而去的速度不同，他可以控制触球时的力量的大小。
The Lexus RX also includes dashboard-mounted knee airbags for the driver and front passenger and seat-mounted side-impact airbags for outboard rear passengers.
雷克萨斯的RX还包括仪表板，安装为驾驶员和前排乘客和座椅式后排乘客的舷外侧面撞击安全气囊膝部气囊。
The Lexus RX also includes dashboard-mounted knee airbags for the driver and front passenger and seat-mounted side-impact airbags for outboard rear passengers.
雷克萨斯的RX还包括仪表板，安装为驾驶员和前排乘客和座椅式后排乘客的舷外侧面撞击安全气囊膝部气囊。
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