Many people can and do work out on blood thinners, but you have to be more cautious especially considering you’ve just had afib and a cardioversion. As for running gear, there are additional potential interactions with both your heart condition and your medication. Your doc is in the best position to guide you, so you should probably make sure they’re aware of everything you plan on taking or doing. Safety and minimizing your stroke risk should remain the top priority. I would start slow and monitor your blood pressure and bloods like an OCD madman if you decide to take ababolic. Stroke isn’t worth the risk or your life.