I agree with Rob that they need some kind of beginner program at corssfit. When I started at my local crossfit, I will admit I was very overweight and out of shape, they had me take the baseline test. Being competitive by nature and the coaches pushing me, I went way to hard. I almost threw up, was light headed and couldn’t see clearly for about 20 minutes. I was always sore after my workouts to the point where I could hardly walk. My shoulders were also shredded after a two months. I left crossfit and started a progressive program and am getting in shape and can still function.