Yesterday afternoon I had my annual checkup. The only number on my chart my doctor said he didn’t like was “2000,” which was the date of my last tetanus shot. So, a nurse gave me one (good job, by the way – I barely felt it), and warned me it would hurt tomorrow.
Instead, it started to hurt about 10 minutes into aikido last night. I didn’t let it stop me, although I did a few fewer rolls than the others. What was interesting was when we started practicing technique, I was forced to not use my shoulder muscles to lift, or I felt some serious pain. It definitely gave me some extra guidance when we practiced tenkan and shihonage.
Everyone should practice aikido with a tetanus shot at least once.