She did a tastefully-shot nude photoshoot for MetCon Photos (entitled The Athletic Body). From my understanding, she's sort of a lowkey girl. MetCon Photos posted one of the pics about a week ago, and she remarked "I wondered why I had 58 new followers." I was reminded that I actually posted a few of those photos here on this sub waaay back, but without actually identifying her. But since she seems to be cool with it, I reposted yesterday and today naming her as the athlete.
A massage/recovery gun. Basically a percussive thing.
Theragun or hypervolt are the big names but there are a ton on amazon. I have this one and I'm very happy with it!
If you're interested - watch some videos and reviews and pay attention to the "stall force" of the cheaper ones. The first one I got, that was like $30-50 was total shit. Press even a little and it would stall out.