Tracy Munroe’s boss brought her and 39 of her co-workers across the street to CrossFit Ramsay in Calgary, Alta.

“(He) thought it’d be good (for) team/morale building,” she explains.

A year later, only Munroe and one of her co-workers remain as members of the box. She remembers feeling intimidated but stuck it out and has seen impressive gains.

“It was scary,” she says of her first days. “I would literally stand across the parking lot and look in the bay door.”

Today, Munroe has last more than 80 lb.

CrossFit Ramsay owner Ken Andrukow says the 40-year-old has motivated other members.

“She has shown consistency and resolve to change her life and, as a result, she’s inspired countless others within the gym,” he says. “They see her working hard. They see her here on a consistent basis.”

But the biggest difference hasn’t been her weight loss, Munroe says. It’s been her mind.

“I’m a different person,” she says. “And I’m still not done.”

Video by RabbitView.