Yes I see the difference.
My brother has a "Massage" chair that I bought him for, his birthday, a couple of years ago but the instructions say that people with heart problems should not use it. Strangely the Wife has one of those vibrating Foot Spa things (yes I know but I get stuck for ideas for Birthdays) and the instructions for that say the same about heart problems and not using the vibrating thingy.
Based on that I suspect that even if I were a "gamer" I would not be using one of those chairs.
I now await questions about Rabbits