The Keeping Up With The Kardashians star, who gave birth to her first child in June, appeared to squeeze in a house call on Sunday (15 December) before her workout.
Kim, 33, looked slender in her figure-hugging all-black gym gear but seemed to want to keep a low profile, wearing oversized sunglasses and keeping her head down.
The mother-of-one recently told fans via her Mobio Insider account that her relationship with the paparazzi changed while she was pregnant, telling one fan: "When I got pregnant it all changed. I saw it all so differently. But still it's my life so can't let it get to you too much and get back to being fun and respectful."
Clearly the photographers haven't deterred her from her daily workouts as she appeared on the cover of a US magazine last week in a skimpy white bikini alongside a headline that stated: "My body is back!"
She later told E! News she still wanted to drop another ten pounds, saying: "When you get older and your body changes, you just can't eat the way you used to. So I'm training myself and I work out. You know, I love pilates, I love running."
Adding of her routine now she's accompanying fiance Kanye West on tour, she said: "Now that we're on the road, just any gym in any hotel, I just go for it."
Kim welcomed daughter North West on 15 June.
She previously hit back at critics who suggested she'd turned to surgery to shift her baby weight, saying she'd worked hard to regain her figure and she was proud of her efforts.
More stars who have welcomed babies in 2013 in Reveal's gallery below:
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