How to access activity for previous weeks with VoiceOver on in Apple Fitness?

My app has a similar UI to this one in Apple Fitness:

I'm trying to figure out how to make my UI fully navigable with VoiceOver on, and the first thing I need to do is understand how users would expect it to operate. So I'm trying to first navigate the same control in Apple's Fitness app with VoiceOver turned on so I can match what they do, and so far I'm stumped.

My best guess, based on my limited understanding of how to navigate iOS with VoiceOver, was to flick up and down (the way you do on the paging control on the Home Screen) but that doesn't do it. The other thing I tried was three-finger swiping left and right, but that also does nothing.

Can anyone help me understand what the user expectation is for navigating this control with VoiceOver on?