If you can do swimming training after a lot of strength training, it means that your strength training is not in place, so the effect is very poor.
If you persist in swimming after being very tired, it will have an impact on your body and you may be overtrained.
There are several schemes for your reference:
1, if you have enough time, you can do swimming training in the morning, supplement sports drinks after training, take a nap for at least one hour at noon, and then do heavy exercise equipment training in the afternoon.
2. If you don't have much time, you can do swimming training on the rest day of equipment exercise, which can give your body enough time to recover.