Like with any exercise, you have to start off slow and work your way up to going faster. First get your balance on the board by rocking on it. Then start twisting slow and work your way up. By doing this, you will stop falling off the board, and it will not creep across your floor. I use it through-out the day. Beats being run over by vehicles when running/jogging/walking. I started feeling my leg muscles getting sore from day one, and then the other muscles as I progressed up.
Bottom Line: Yes, I would recommend this to a friend
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