“If I want change, I need a challenge.” –Trainer Jonathan Ross, who explains that your body will only respond to a stimulus that is more difficult than what it’s used to.

“I am the architect of my life.” –Health and fitness expert Maggie Greenwood-Robinson, Ph.D., who says that getting in optimum shape will help not only your body, but also your happiness and that of your family.

“Calm and focused.” (Or “peaceful” or “powerful” or “vital.”) –Trainer Gregory Florez, who explains that calming words will help with stretching while powerful words will help with high-energy activities like strength training and aerobic exercise.

“Just one more.” –Ultramarathoner Dean Karnazes, who ran 50 marathons in 50 states in 50 days and wrote 50/50 (Wellness Central, 2008). After his last marathon, in New York City, he turned around and ran 1300 miles back to St. Louis, Missouri, where he had run his first event, the Lewis & Clark Marathon.

“Posture.” –Helen Foster, author of Cellulite Solutions (Hamlyn, 2007), who reminds readers that poor posture can reduce lymph flow and contribute to cellulite. Focus on lengthening your torso by standing tall and tightening your abdominal muscles.

What do you do to boost your motivation? Tell us about it: webeditorial@oxygenmag.com