How damaging is exercise one week after fat transfer to the face?

Not to worry, you will be fine. There is no evidence to suggest that exercise a week after the procedure will affect your results. My patients routinely go back to exercise after a week and I tell them if they feel any strain or extra swelling, then to stop.  Is there something that has occurred since you exercised that is making you worried? If you developed some extra swelling after the exercise, that just means that you should slow down a bit and rest a little more as the area that was worked on is still settling down. Do discuss your concerns with your plastic surgeon.

Most likely you have just prolonged your recovery with regards to bruising and swelling.  There is not a clear answer as to the proper protocol for fat transfer.  You should discuss this with your surgeon.