The mother of one will marry rapper West, 36, in a lavish ceremony in Paris later and is apparently relying on a variety of hard-core exercises to help her get in shape for their big day, reported Contactmusic.
"Kim is taking classes at both Barry's Boot Camp and SoulCycle in Los Angeles, and she is also pounding the pavements with her 10-month-old daughter, North West, in a stroller several times a week in the Hidden Hills area of the city.
"She alternates between different types of workouts for a better result," a source said.
The 33 -year-old socialite recently enjoyed a short break to Santa Barbara, California for Easter, but refused to relax her routine.
"She kept up with her workouts. She's very focused and dedicated to her routine. It's obvious she wants to look her best for the wedding. And she looks amazing!," the source added.
Kardashian so far lost 50 pounds she gained while pregnant with North by sticking to a high protein Atkins-base diet.