Feel Strong Inside & Out

For years, Greta personally struggled with the exhausting cycle of yo-yo dieting, chasing quick fixes, and feeling frustrated by a body that no longer seemed to respond the way it once did. Like many women, she spent years believing the answer was simply more restriction, more cardio, and more discipline—only to find herself feeling defeated, exhausted, and stuck.

That journey ultimately became the foundation for the work she does today. After learning how chronic dieting impacts metabolism, hormones, energy, and overall health, Greta became passionate about helping women step away from extremes and build a healthier, more sustainable approach to fitness and fat loss. She created Metabolic Mapping to help women restore metabolic function, rebuild confidence, and develop healthy habits rooted in nourishment, strength, and consistency instead of guilt and punishment.

In 2025, Greta and her husband Greg opened Define139 Women's Strength Studio after carrying a dream since the 1990s of owning a gym together. Today, Define139 is more than a gym to Greta—it's a place where women can belong, feel supported, and discover they are capable of becoming stronger physically, mentally, and spiritually than they ever imagined.

When she's not coaching, Greta enjoys strength training with her husband and kiddos, reading, and hiking with the family dogs.

Certifications & Specialties

• ACE Certified Personal Trainer
• ACE Senior Fitness and Nutrition Specialist
• ACE Weight Management Specialist
• NCI Level 1 Nutrition Coach
• NCI Level 2 Nutrition Coach
• NCI Mindset Specialist
• OTA Online Trainer Academy Certified

Areas of Focus

• Sustainable Fat Loss
• Women's Strength Training
• Metabolic Health Optimization
• Nutrition & Lifestyle Coaching
• Mindset & Behavior Change
• Healthy Aging & Functional Strength

Greg Quesenberry is the co-owner of Define139 Women's Strength Studio and serves as the gym manager and head trainer. With a strong background in exercise science and years of hands-on experience in strength training, Greg is passionate about helping people build strength, move better, and gain confidence both inside and outside the gym.

Greg holds a Bachelor of Science in Exercise and Sports Science and brings a practical, results-driven approach to training. He believes fitness should be sustainable, effective, and approachable—whether someone is brand new to the gym or looking to take their training to the next level.

At Define139, Greg plays a key role in creating a welcoming environment where women feel comfortable learning proper form, understanding equipment, and building strength safely and confidently. His coaching style focuses on encouragement, consistency, and helping clients develop long-term habits that support overall health and performance.

When he's not coaching or managing the gym, Greg enjoys strength training with Greta, fishing, and spending time with his family.

Education & Areas of Focus

• B.S. in Exercise and Sports Science
• Strength & Resistance Training
• Functional Fitness
• Exercise Technique & Form
• Beginner-Friendly Strength Coaching
• Sustainable Fitness & Healthy Lifestyle Habits

Sophie has been passionate about health and fitness for years and believes a healthy lifestyle doesn't have to be perfect to be sustainable. She began lifting weights at just 12 years old alongside her mom and dad, and what started as an early love for fitness eventually grew into a lifelong passion.

Over time, the gym became more than just a place to work out for Sophie—it became a place where she built confidence, learned how to properly fuel her body, and created a healthy lifestyle that felt realistic and sustainable. That personal journey ultimately led her to pursue a career helping others do the same.

Her coaching style focuses on balance, consistency, and creating realistic habits that support long-term success. Sophie is passionate about helping women feel strong in their own skin and become the healthiest version of themselves without feeling trapped in an "all or nothing" mindset.

When she's not coaching, Sophie enjoys strength training, continuing to learn more about health and fitness, and spending time with family and her fiancé, Jaxon.

Education & Certifications

• Bachelor's Degree in Exercise Science
• NCI Nutrition Coach Certified
• ACSM Certified Personal Trainer

Areas of Focus

• Women's Strength Training
• Sustainable Nutrition Habits
• Beginner-Friendly Fitness
• Confidence Building Through Strength Training
• Healthy Lifestyle & Habit Coaching
• Realistic, Balanced Fat Loss Support