If you want to be muscular, you must do more strength training and eat more high-protein food. You can eat protein powder if necessary. If you don't eat, you won't grow muscles.
After entering the club to apply for a card, the coach will give you a physical fitness test, and then you can consult them specifically and explain it to you clearly.
Of course it's good for basketball. It won't be painful when you collide. You will also improve your physical strength and flexibility.