this is a difficult subject because people come to us usually in an effort to change something about their bodies, often associated with appearance.
My approach is to make sure that I am not making them feel even worse about themselves as they already do. This takes a bit of intuition to guess how a client will react to information you give him. Listening how the client expresses himself about his goals can give some clues.
I am always stating before the assessment that the very goal of an assessment is to find out weaknesses and that the report often looks ‘worse’ than things are because that is the focus. I often make statements like ‘client has very good posture overall but here are a few areas that need work’. It’s a matter of framing in a positive way.
As far as weight and body composition and measurements pertaining to that: sometimes it is as important to know when not to measure than when to do so. Particularly in the very overweight, traditional body composition methods are nor reliable. Some people will even resist a tape measure, and unless you are 100 % sure that it is long enough, don’t even try it. It would just add insult to injury.
In summary: I try to say as much positive as I can, but it has to be specific and true.