'Khloé Kardashian has been kicking her fitness into high gear! The former \"Keeping Up with the Kardashians\" star gave fans a glimpse at her recent gym transformation on Instagram on Tuesday. She shared a photo of her back muscles mid-workout that was taken last fall, then one from today, where she was noticeably even more toned.' 

Tags: fitness , Workout , ENTERTAINMENT , Khloe Kardashian , Celebrity , Tristan Thompson

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