The TOWIE star has spent today (15 July) filming for her Results With Lucy website, which allows fans to watch her favourite workouts and follow her healthy lifestyle tips.
In one picture uploaded to Instagram, Lucy shows off the toned tummy and figure that saw her voted Reveal readers' favourite celebrity bikini body earlier this year.
Lucy wrote alongside the picture: "Filming for @resultswithlucy .. 20 workouts down!! #hardcore."
Plenty of fans were quick to compliment Lucy on her physique, with comments ranging from, 'Why can't I have a body like that?!' to fans saying they are proud of Lucy for her hard work.
Lucy's new workouts will target the bum, tummy, thigh and arm areas.
In an intro video for her website, she said: "Before I started training I was still slim but I had a lot of cellulite on my bum, down my legs," she has said, about why she began working out. "I didn't have a lot of energy. I didn't feel healthy and I knew I needed to start training.
"After a few months I had a lot more energy, felt better and more toned… I've lost all my cellulite, my body feels amazing, I've started to get little abs. I just feel great in myself."
Watch Lucy introduce her fitness website:
On the final episode of TOWIE's ninth season, which aired last week, Lucy was seen telling Jessica Wright she was annoyed by critics claiming she is too small.
"I'm getting so much stick at the moment about my size," she said. "It's really annoying me. I'm healthy. I am a six to eight, which is small, but it's through exercise."