FROM THE GYMS of pro bodybuilders to the training room of Olympic marathoner Galen Rupp to Mark Wahlberg’s 4 a.m. Club, there ...

It’s bulking season for Mark Wahlberg. The Hollywood actor candidly shared his fitness journey with his 30.9 million followers on social media after he stripped down to nothing but his shorts.

Mark Wahlberg's workout routine had fans puzzled ... Effort levels are important when it comes to building muscle. However, in the following clip, Wahlberg proceeds to hit the skipping rope ...