Pausing during workout

I have seen posts of other users having this issue. I have verified that the pause workout automatically has been turned off. The watch is snug on my wrist and I was wearing a tank top so my close were not bumping buttons. It seemed almost motion was pausing the workout. I would look at the watch see that it was paused- put it back in motion, put my wrist down and aprox 30 sec later it paused. This happened consecutively for the last 5 minutes of my workout. It was very distracting.