Wednesday, 27 August 2008

Massage Chair Myth Busters - The More Motors the Better!

By James Knolan


The massage chair industry has a few myths that have been sustained over a number of years. One particularly interesting one is the number of motors in a massage chair. The myth claims that the more motors in the shiatsu massage chair the better. Certainly, an increase in the number of motors can enable more functions. Practical reality suggests that more motors means more cost and more real estate and weight of the massage chair. This myth will be explored in this article.

The more motors the better the chair myth is going to be put to the myth buster test. Obviously, having more motors enables more massage options to be possible. Motors are not cheap, in fact they are expensive. Immediately, there is a quality versus quantity tradeoff. Having 18 motors versus 3 motors would make the cost of the 18 motor chair skyrocket, if they use the same quality motor. First concern is the quality level of motors in a massage chair with 18 motors.

Weight is a consideration since motors weigh between 2 lbs to 5 lbs each. Imagine a massage chair with 18 motors, each weighing 5 lbs for a total of 90 lbs just in motors. Motors can quickly add more weight. Space is another important consideration. There is only so much space in a shiatsu massage chair for the motors and the mechanisms driven by the motor. Shiatsu assage chairs with 3 motors in the chair back are already constrained, where do the other 15 motors go?

How are high end luxury massage chairs designed with motors? Most manufacturers use 3 high quality motors. One for the kneading massage, one for the tapping massage and the third motor for moving the roller unit up and down. Software synchronizes the movements of the motors and running the tapping and kneading motors together produces the shiatsu massage.

Sometimes, 2 motors are used for the kneading by having them run the left and right side independently, but synchronized. The same can be done with the tapping. This can increase the number of motors to 5 in the roller system, but does the quality of massage increase? In our experience, we have not felt a noticeable difference in massage. Again, the tradeoff is to use cheaper motors since you need to have 2 rather than one or significantly increase the price, which puts the chair at a competitive disadvantage. So are more motors better?

There are still massage chair companies that claim to have very high numbers of motors. Certainly, they are not motors performing massage functions. These massage motors are expensive, heavy, take up space and are integral to a long, trouble-free life. Many massage chair companies jumped on this fad and perpertuated the myth. If adding motors does not add massage functions, then what is its value? In this case more is not better. More motors creates more potential problems, complicates the design and servicing. More motors also means the quality level is being sacrificed versus models with less motors. This myth is built on hype. Simple is beautiful!

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