Yes:
– Be aware that the water medium can take a joint out of its normal or pain-free range of motion, and it can give you the sense that you can exercise longer than your body may be used to; your trainer will advise you to start slowly and see how you feel after the session is completed to gauge how much your body is ready for in order to avoid further injury or setbacks.
– Allow yourself extra time prior to the session to change, shower and enter the pool.