For any of us who have been in the market for a massage chair, researching the features and the technology of the newer and more innovative products makes us familiar with S and L-tracks. These terms are not as clear to some people, but the distinction between an S and L-track massage chairs is made by the roller tracks. These go from the head down to the low back. In the case of L- tracks, they go to the thighs and the glutes.
The massage chair track carries rollers up and down the backrest’s length. There are also rollers that move from the from head to glutes on the track both laterally and vertically. This creates the motions of tapping, kneading and knocking. Most chairs come with an S-track but there are many new models that feature an L or an SL-track.
What is the difference?
The S-track gets its name from the sinusoidal shape of the spine. An S-track system lets the roller system follow the curvature of the human spine while they move up and down. This is a modality that offers great comfort because the rollers do not simply go up and down without following the contour of the human body.
On the other hand, an L-Track roller system is known for how the rollers reach down the back and then underneath the chair’s seat. This system can massage the thighs and the glutes as well.
L-track systems are also called extended roller track systems. They are an S-track, but they extend to the tops of the hamstrings. Chairs that are outfitted with an L-track or an SL-track massage chairs work the hamstrings as well as glutes and the piriformis. They use as much pressure and precision as they massage the neck, the middle back, and the lower back. If you have sciatica which is secondary to the pelvic musculature or piriformis syndrome, opt for an L-track massage chair.
Now you know how an L-track works. This will help you decide which type to buy.