'I Feel Like I'm 48!'

At 84, Chuck Norris is more on top of his game than ever.

The martial artist and acting legend celebrated his birthday this past Sunday, and marked the occasion with a video on Instagram that showed him "feeling good and staying active!"

In the high-energy clip shared on Monday, the Walker, Texas Ranger alum practices boxing outdoors amid a lush landscape before telling the camera with a laugh, "You know, I'm 84 today, but I feel like I'm 48!"

"Thank you all for the wonderful birthday wishes. God Bless," Norris added in his caption.

Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from celebrity news to compelling human-interest stories.

Norris is famous for his action-packed filmography dating all the way back to the 1960s, and has become so well-known for his tough-guy persona over the decades since that he has even made multiple cameos in projects where he simply plays himself.

He also inspired a trend often referred to as "Chuck Norris facts," which are hyperbolic "factoids" about him that highlight his rugged reputation. (For example, "Chuck Norris once roundhouse kicked someone so hard that his foot broke the speed of light.")

Aside from his starring role in Walker, Texas Ranger on television from 1993 to 2001, Norris has appeared in several films highlighting his martial arts background.

His last big-screen appearance was in 2012's The Expendables 2, in which he played Booker opposite fellow action stars Sylvester Stallone, Jason Statham, Jet Li, Dolph Lundgren and more.

Norris announced his return to film back in January, sharing a pair of similar photos of himself taken 40 years apart, holding a weapon in each hand.

"Here’s a pretty neat parallel I thought you’d all enjoy!" he wrote. "Almost 40 years apart. I can’t wait for you all to see what’s in store in the upcoming film, ‘Agent Recon.’ Coming soon!"

Among the funny comments on the post was one that read, "The body armor wears chuck norris."

"Area 51 isn’t for aliens, it’s a research facility for understanding Chuck Norris powers," another user quipped.

ncG1vNJzZmiolaS9rbGNnKamZ5OdwqS3jKemq6qZqHqkscuemauZpJrAboSTrZ9mmpmnwamwwLJkm6eonruoedWim56nXW2DcYSTbm8%3D