For Stacie Clark, co-owner of Tiger Fit Studio in Plymouth, fitness isn’t just her business. It’s her way of life. A certified personal trainer and mother of two, she works out every day and coaches others to embrace their inner athlete to reach their fitness goals. Clark has received national recognition for her exercise prowess, beating out thousands of other trainers to win Women’s Health magazine’s “Next Fitness Star” title. Clark, 40, had a starring role in a DVD fitness series and also appeared in a six-page spread of Women’s Health. With her runway looks and fashion acumen (she was a rising star in the fashion industry before opting for a fitness career), Clark stands out from the crowd. That’s what we call a triple threat.