Prepared to be sweating with the stars.

As Dancing With the Stars pro Rylee Arnold continues to garner praise for her “snatched” physique as she and Connor Wood compete on season 35, and her sister Lindsay Arnold shared some of the secrets of Rylee’s fitness routine, which she designed for her.

The routine, which the former DWTS pro said in a Nov. 12 TikTok they began working on a little over a year ago,” was designed to focus on getting Rylee more consistent in workouts with the goals of increasing her muscle tone and definition. Plus, a key factor for the 21-year-old was to maintain her stamina during the off-season so that “it’s like she never stepped away” from the Ballroom.

Lindsay—a certified personal trainer and founder of the Movement Club fitness app—confessed that she was tickled that her younger sister had asked her for help.

“As an oldest sister, when a baby sister comes to you and wants help or wants your advice on something, it’s the best day ever,” she said. “So I immediately got her onto a full workout regimen, as well as incorporating some supplements into her everyday routine.”