The new seat design features three support posts, one shorter than the others, creating a slight tilt. Remarkably, the three supports revolve, continuously altering the tilt direction by 360 degrees.
Toyota claims the tilt is "barely perceptible," with the seat taking over a minute to complete a full cycle. This subtle motion leverages innate "postural reflexes" to maintain posture, resulting in the pelvis moving naturally while the head stays still. Thus, your muscles continuously tense and relax even as you sit.
According to Toyota, this experience is akin to using a balance ball for core training, but without the exertion. However, after about 20 minutes, you may feel "a little fatigued." The company asserts this fatigue indicates you're engaging muscles that usually get little attention, which are "very important."
The seat targets "inner muscles not just in the pelvic region but all over the body," aiming to "boost muscle coordination" and provide a workout without "arduous training."
Additionally, since the seat is always in motion, maintaining a fixed position is challenging, potentially reducing back pain.
Source: Toyota