Lifestyle Health Jake Gyllenhaal Training Heavily for Boston Marathon Bombing Movie 'Stronger' The versitle actor will play Boston Marathon bombing survivor Jeff Bauman in Stronger By Megan Johnson Published on April 1, 2016 03:35 PM Share Tweet Pin Email Photo: Getty Jake Gyllenhaal is serious about his workouts. The Demolition star has been hitting the gym big time in Boston, where he’s currently prepping for his role as Boston Marathon bombing survivor Jeff Bauman in Stronger, the film based on Bauman’s memoir. On Friday morning, the actor hit up Jamaica Pond, a popular spot for workouts, in Boston’s Jamaica Plain neighborhood. Gyllenhaal and his trainer were spotted exercising around the 68-acre kettle pond, which is part of the famed Emerald Necklace park and running trail. Dressed in running shorts and a backwards hat, Gyllenhaal followed the instructions of his trainer, who was wearing an official Boston Marathon jacket. “He looked skinny,” said onlooker Randi Whitcomb, who was also catching a morning workout at the park. “He’s in training mode.” But that’s just part of Gyllenhaal’s current workout regimen. He’s frequently been spotted heading to SoulCycle in the Back Bay neighborhood for early morning classes. A fellow SoulCycler who had just finished his class on Thursday spotted Jake at the front desk talking quietly with the staffers. Wearing a hat pulled down low, Gyllenhaal was escorted into the room just as his class was about to start. “A staffer quietly took him inside the dark studio and got him set up on a bike like anybody who normally would be late for a class,” said the SoulCycler. “Except in this case it seems like it was a late guidance because he’s Jake Gyllenhaal, late on purpose.” Jake isn’t just taking his role seriously on-screen. He’s also serving as an honorary co-captain of Boston Medical Center’s 2016 Boston Marathon team along with with Bauman, who was treated at the hospital in 2013. Bauman went on to author his book, and welcomed a baby girl named Nora with his wife back in 2014. RELATED VIDEO: Jake Gyllenhaal Reveals His Secret to Getting Ripped for ‘Southpaw’ Gyllenhaal has spent significant time in the Boston area meeting with several bombing survivors, and touring the area hospitals where many of them were treated. Another film based on stories surrounding the Marathon Bombings and subsequent manhunt is currently filming in Boston. Patriot’s Day, starring Mark Wahlberg and directed by Peter Berg, is currently filming in Dorchester and Quincy.