Eight-time Olympic gold medalist Usain Bolt is back in the gym after previously talking about some of his fitness issues stemming from a ruptured Achilles suffered in 2024. Bolt posted a video online ...

I first tried the Norwegian 4x4 workout a year ago, and since then, it has become a staple of my fitness routine. I don't do it every week (some folks do), but it's a workout I keep returning to ...