So, at her upcoming wedding to actor David Abrams, she wants to be able to do just that -- move and shake.
"I want people to be comfortable. That's my priority," she told ABC News. "No uncomfortable clothing. No high heels!"
Garth, 43, and Abrams announced their engagement in April, and plan to marry "sooner rather than later." ("I'm not getting any younger!" she joked.) The former "Beverly Hills, 90210" star is working as her own wedding coordinator, as DIY projects have always been a passion. That's why she decided to partner with Motrin for its DIY campaign in which people are asked to share their best tips on its Facebook page.
"I use other people's ideas so often as my inspiration," she said. "I’m a creative person. I don't just want to sit there on the couch and watch TV!"
Her get-up-and-go attitude accounts for the great shape she's in. Garth said that she eats healthily for the most part -- her snack of choice is tomatoes -- and works out regularly. To make staying active more fun, she often enlists the company of her three daughters with her ex-husband, Peter Facinelli.
"My 12-year-old is going to start boxing lessons with me, get some adolescent aggression out -- and I hike with my older daughter," she said. "My youngest is very active, from jumping on the trampoline to competitive soccer. We like to move! We don’t like to sit around."
Having said that, her oldest has spent some time in from of the television recently -- watching her mother in old episodes of "90210."
"I didn’t see her for four days because she binge-watched them," Garth said. "But she loves it. She was like, 'That's really weird, mom.'"