Come back previous page from tab page without reloading

Ionic Framework ionic-v3
1

I am getting stuck with this problem and need some suggestions.
Flow:
Page 1 > Tabs (Tab Page 1, Tab Page 2, Tab Page 3).

My expectiation is coming back to Page 1 from Tab Page (Back button) without reloading. I have implemented workaround like this:

this.app.getRootNav().setRoot(ListPage, {}, { animate: true, direction: 'forward' });

Because of setting root, it will reload the page but I do not want that behavior (it would call my back-end api so many time to get list of stuffs unnecessary). Is these anyway to do it better?

Thanks.

PS Sorry for my bad english.