I have been using 150# hand grippers. 5x5, I have also been using rubber bands for the opposite direction. I need to build up this area to help with carpel tunnel.
I have been using a ball for a chair again at work. This should build up the core.
I haven't been riding because it has been cold and wet.
One day, I shall come back. Yes, I shall come back. Until then, there must be no regrets, no tears, no anxieties. Just go forward in all your beliefs and prove to me that I am not mistaken in mine.