hey i did that with low back strain, can barely walk, and i mentioned to arce my left pec was tender, most people who could barely walk wouldnt even attempt it, my chest has been shaky after tweakin it 3 weeks ago, so i was a bit apprehensive i didint want to leave with a torn pec, either way i showed up limping barely walking with tender chest and still did what i did, i could have said, ohh no, i cant walk due to back strain and my chest im not 100 percent sure on it............but i didnt, i showed up and did what i could without getting hurt even more.