I have two suggestions, depending on your choice.

1. Mainly control diet, eat more vegetables and eat less meat. Playing basketball is useless. Everyone says sit-ups are useful. You get up every morning and do 30. Long-term persistence will definitely have an effect.

In addition, what is the purpose of your reduction? Is your friend saying that you are too uncoordinated? If not, you don't have to reduce it.

2. don't lose weight, practice hand wall and waist, so it is coordinated.

A man's ass is big and explosive. I think it is mainly useful, not beautiful. Believe me, when you play basketball, you will feel deeply when you play the center position.