Lifestyle Health Rob Kardashian Runs into Sister Kylie Jenner and Tyga While Working Out The reclusive Keeping Up with the Kardashians star suggested he's exercising again By Michele Corriston Published on August 24, 2015 03:05 PM Share Tweet Pin Email Photo: Courtesy Rob Kardashian; Inset: Alexander Tamargo/Getty Is Rob Kardashian ready to get back in shape? The reclusive Keeping Up with the Kardashians star suggested he’s exercising again in an Instagram post Monday. “Spotted these fools on the morning workout,” he captioned a photo of his sister Kylie Jenner wearing a sports bra, yoga pants and sneakers alongside her boyfriend Tyga on a running path. Kardashian, 28, has been staying out of the spotlight after gaining weight and battling depression over the past couple years, sources have told PEOPLE. But he seems to be turning his life around: Sister Kim Kardashian West Tweeted that they went on the “hardest hike ever” Aug. 14. “I think Rob knows exactly what to do. He’s worked out [before] and he’s focused,” celebrity trainer Gunnar Peterson told PEOPLE of his client in June 2014. “Rob works out in beast mode. When I see him, we laugh, have fun and he gets after it hard at the gym. I know he can do this.” Jenner, 18, and Tyga, 25, recently returned from two exotic vacations celebrating her birthday: a Mexico getaway with her close friends and a family trip to St. Barts.