Lately I have had an interest in martial arts, Lord knows I could use the exercise. I went to a judo school that's on the way home from work one evening. There were some gentleman grappling pretty hard on the mat. An instructor was working with the group, telling them what to do, which hold to go to next, etc. I was watching them a few minutes, and another instructor came over, sat down, and we visit a couple of minutes. Nice fella and all. But I noticed in the grappling they use their knees a lot as leverage in order to get someone into a hold.
The instructor and I are visiting, and I asked him about that. He asked why I would mention that.
Well have you ever been kneed in the balls, I asked?
He told me "Oh, you get used to that".
So I explained I didn't think judo was for me.
There are other forms of martial arts, there have been some tv shows on discovery channel lately, one that looked interesting was brazilian jui-jitzu. The moves in this martial art form appeared to me as though it would really lend itself well to a person who was wanting to exercise and work with both sides of the body.
Dr Roerich started an interesting thread several months ago about the subject of hemispherical lateralization. I believe it was called left side of the brain struggling to make sense of right brain, or something worded close it.
If you do a google search, type in ptsd hemispherical lateralization, quite a bit of stuff pops up.
Have a good day!