What cardio exercises can I do in a gym that do not shrink my butt?

What cardio exercises can I do in a gym that do not shrink my butt?
I love my butt and my hips. I have been running as a source of cardio but am noticing that my butt is shrinking and tightening. I know this will happen to an extent because that is the result of exercise, however, are there any cardio exercises that will not be so detrimental?

Posted by Robert
Stepmill? stairs, hills.

Posted by Shamar cg
going up hill on the treadmill will work.

Know better? Leave your own answer in the comments! More vigorous exercise can help improve fitness of the heart and lungs, which can provide even more consistent benefits for lowering heart disease risk. ... Exercise Fitness Blog

---

Orignal From: What cardio exercises can I do in a gym that do not shrink my butt?