The three-time Olympian builds on his family's medal legacy—and trains hard for a strong lower body, too.

Learning how to squat isn't as simple as it looks, which is why we asked personal trainers which exercises they give to clients to improve squat depth and mobility.

Basic back squats are a pillar of strength. And while it's an important compound movement, it mainly focuses on your posterior chain. Not to mention, you need access to a gym or Smith rack at home. So ...