首先，我们能看一下Rubberbanditz网站介绍如何使用弹力绳来进行训练：

Power and Olympic lifting with bands offer an ascending resistance throughout your entire range of motion, providing a synergistic relationship with your muscles. As your muscles contract and exert force, the bands stretch farther and the resistance is increased.

(译：在进行爆发力及奥林匹克举重的训练时，弹力绳在整个动作范围中提供一个上升的阻力(Acending Resistance)，对于肌肉提供一个加成作用。当你的肌肉进行收缩及发力时，弹力带伸展的更长，阻力增加就更大。)

At your weakest point, generally at starting position, the bands offer minimal resistance to help you get over the “sticking point” (ex: the lowest point of a squat or bench press). Then, as you extend through your rep, the powerlifting band’s tension increases incrementally, allowing for optimal muscle strengthening efficiency unachievable by the simply force of gravity.

(译：在你最虚弱的点，一般是在你的起始位置，弹力带所造成的阻力是最小的，有助于你克服这“障碍点(Sticking Point)”，例如“在深蹲或卧推的最低点”。然后，当突破该点时，弹力带的张力(阻力)亦开始增加，予许达到最佳肌肉训练的效率。)

从上述的介绍之后，或许你能明白，为何不加上“槓片”来增重，而是槓铃套上弹力带来增加阻力啰。另外，也是有人说利用这种方式来训练爆发力、最大肌力，但目前还未找到完整的介绍，所以未来有机会再分享啰。

文章来源：山姆伯伯工作坊