Most massage chairs are designed for people under 6 feet tall, so if you are taller than that, you should plan to buy a special chair. Your massage will not be as effective if you do not have the right chair. The chairs are designed to massage different muscle groups, and if you are taller than average, the chair is not going to land on the right muscle groups when it massages. This could be more than just uncomfortable, as it could also cause bruising or injury. Your feet could also end up hanging off the end of the chair, which would be uncomfortable, and your feet would not get a massage.