Outfitted for the sweat session in black capri leggings, a black sweater, and black-and-pink weighted gloves, the 29-year-old Keeping Up With the Kardashians star tuned out the rest of the world and tuned in to whatever was playing through her headphones. She kept her eyes hidden behind a pair of chic aviator sunglasses.
Four years ago, Kardashian was in a very different place -- both literally and metaphorically. On Sept. 27, 2009, she walked down the aisle with Odom, now 33, after just weeks of dating. The lovebirds tied the knot at the Los Angeles mansion of music mogul Irving Azoff, with Kardashian's sisters Kim and Kourtney acting as maids of honor.
"I got married a month to the day that [we] met, so I know it's crazy," the star said in an interview with The View shortly after her wedding. "But I knew I was in love with him after a couple of days."
A year later, the couple renewed their vows. "Lamar has truly made our anniversary more special than I ever could have imagined," Kardashian wrote on her blog in 2010. "The day has been somewhat like a treasure hunt, moving from one surprise to the next...I'm on cloud 9 right now!"
Times certainly have changed since then. These days, the reality star and the athlete are living basically separate lives. Sources told Us Weekly recently that a split between the two is imminent. "She'll be the one who ends things, and it will be soon," a pal said.