The reality TV star wore a top emblazoned with the phrase 'Nobody Has Ever Regretted It' as she pounded the pavement near her home in Wernersville, PA has the keep fit photos.
Looking trim and toned it's hard to believe the reality TV star is a mother of eight young children.
And while she now has an enviable figure she admits her quest for the perfect body wasn't an easy one.
Just last year she ditched the treadmill in favor of daily jogs near her home, and she credits these for transforming her physique.
"This is the most fit I've ever been," she told People. "I started wondering if I could run as far as this one spot near my house. I figured the only way to find out was to do it. So I did, and each day I just kept going.
"Running outside is a huge challenge. The other day I achieved my personal best, seven miles in just over an hour. Now I'm thinking I'll be happy when I can do 10 miles, three times a week."
Kate was off parenting duty for the weekend as her ex-husband Jon looked after their broad.