Here's the gadget Jessica Simpson used to achieve her remarkable 100-lbs weight loss

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Jessica Simpson's incredible journey to weight loss has been an inspiration around the world.

The mom of three, who lost 100 lbs. in just 6 months, worked incredibly hard for her results with the help of her trainer Harley Pasternak. Aside from following Pasternak's The Body Reset Diet, a majority of Simpson's transformation has been attributed to the simplicity of walking and tracking her steps. 

"The goal was to get her eventually to 12,000 steps a day, which she did and to get her eating well," Simpson's longtime trainer revealed exclusively to AOL. "Not long after she gave birth, with clearance, we got her walking a little bit and had her on a step limit. As she felt better and the medical clearance allowed her, she added more and more steps."

SEE ALSO: How to achieve Jessica Simpson's remarkable 100-pound weight loss

"She walked the steps. She made the steps social with the family. She would go out with her husband and her kids and walk around the neighborhood and really looked at this as not a sprint but a marathon."

So what's the easiest way to keep track of your progress? "Right now, we're using the Fitbit Versa 2 which is the newest one," Pasternak said. "It's pretty great because sometimes I swim and it's waterproof. I can also stream music through it. I can link mine to my clients so we have this friendly competition to see how many steps we've done to each other -- so I can see how much or how little they've moved that week."


Fitbit Versa 2 Smartwatch, $199.95

"[Jessica's] incredible. Always so respectful and positive and we worked with her back in the day to help her get ready for films and then after each child birth to get her pre-baby body back. This third one we had a little more work cut out for us than the other ones, but she had such an incredibly positive attitude." 

"We also focussed on the behavior outside of the gym more than anything. Every night before she goes to bed, she sent me an email with how many steps a day followed by did she sleep well followed by what did she eat that day. And then gradually we added some resistance workout in a few days a week."

"There's 168 hours in the week and even if you're working out four days a week for 45 minutes, there's still 165 hours that you're not working out. That's the most important time and that's why it was really all Jessica. Everything she did she can continue to do for a long time, " Pasternak added.

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Jessica Simpson in 2019
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Jessica Simpson in 2019
NEW YORK, NY - SEPTEMBER 25: Jessica Simpson arrives at a hotel in SoHo on September 25, 2019 in New York City. (Photo by Raymond Hall/GC Images)
NEW YORK, NY - SEPTEMBER 25: Jessica Simpson arrives at a hotel in SoHo on September 25, 2019 in New York City. (Photo by Raymond Hall/GC Images)
NEW YORK, NY - SEPTEMBER 25: Jessica Simpson arrives at a hotel in SoHo on September 25, 2019 in New York City. (Photo by Raymond Hall/GC Images)
NEW YORK, NEW YORK - SEPTEMBER 25: Jessica Simpson arrives at Macy’s for a fashion meeting on September 25, 2019 in New York City. (Photo by Gotham/GC Images)
NEW YORK, NEW YORK - SEPTEMBER 25: Jessica Simpson arrives at Macy’s for a fashion meeting on September 25, 2019 in New York City. (Photo by Gotham/GC Images)
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