I put my little kayak in the water yesterday and went for the first longish paddle of this year. Tennis elbow has kept me away from it for months.
I was waiting for it to be totally healed, then got tired of waiting, and went for a little kayak ride anyway.
I've used that strategy with an injury on two other occasions. Once it was a total permanent cure (for back trouble) and the other time it landed me in six months of physical therapy (for a frozen shoulder.)
This time, no change. I had a fine time on the lake and today my elbow hurts no worse than it was already accustomed to.
In fact, it hardly hurts at all.