Totally Ripped: Jason Walsh Transforms John Krasinski

John Krasinski looks almost unrecognizable as he gears up to play a Navy SEAL in his new movie, "13 Hours: The Secret Soldiers of Benghazi." Trainer and Rise Nation founder, Jason Walsh transformed "The Office," star with two-a-day workout five times a week focusing on burning fat while gaining muscle. 

A long time supporter of Jason Walsh, John Krasinski among a handful of other noteworthy stars attended the launch of Rise Nation in August including Matt Damon, Emily Blunt, Eli Roth, Hilary Duff, Minka Kelly and more. The Los Angeles fitness hotspot features a 30 minute workout done exclusively on a VersaClimber machine and burns upwards of 600 to 800 calories a session. 

Jason loves the VersaClimber because it is virtually impossible to coast on. Meaning every moment of the workout engages your core, speeds up your heart rate and strengthens your muscles. Climbing on the VersaClimber mimics the motions of a crawl which aligns your body and reaffirms good posture and is zero impact. Unlike similar intense workouts, you can train at Rise Nation everyday because it's full body and you won't get hurt. 

Fans of Rise Nation include; Bradely Cooper, Ashlee Greene, Justin Timberlake, Jessica Biel, Ina Shayk, Ashley Tisdale and more.