Massage rollers are located along the track of the massage chair. Typical L-track massage chairs have a range that allows rollers to reach from your neck all the way down to your glutes. These range of muscles covers the “extensor” along the back of the spine, the “flexor” along the front and the oblique along the sides. Each of these muscles play an vital role in allowing you to move, twist and bend freely. They tend to tighten up or cause back pain due to chronic stress or get inflamed due to exertion. As you already know, tight muscles prevent you from enjoying your time with friends and family, interfere with your work and make simple movements very unpleasant.
Normally, different types of massage techniques are used to reach all of the muscles that need attention. 3D and 4D massage chairs are built with rollers that can change the speed, technique and depth of the rollers. They can perform long strokes with deep circular movements (Swedish massage style), deeper and more forceful stroke (deep tissue massage style).