Edward R. Laskowski, M.D.: Resistance tubing is a lightweight, transportable, low-cost strength teaching tool. The tubing provides resistance when stretched.
You can decide on from several varieties of resistance tubes in almost any sporting items retail outlet. In general, the lighter the color of the tubing, the lighter the resistance. Similarly, the darker the tubing, or the shorter you make the tubing, the higher the resistance.
You can use resistance tubing to fortify just about any muscle mass team, both equally in the arms and the legs. As you get more powerful, you can use tubes that give additional resistance.