I think it's really important to mix cardio with toning, so I love boxing and then add in Pilates or ballet to keep me long and lean and avoid bulking up. ↗
All the sudden high-impact stress can really take a toll on your body. So if you still want to be active and get in a good workout, go to a yoga class or pilates class, or get in some strength and conditioning. ↗
Pilates is my favorite core strengthener. I do it three or four times a week. With all the strengthening and lengthening, it's like ballet. Plus, you get to do it lying down! ↗