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Gym

Greta and Define139 Training and Fitness' Story

I had dreamt of being a personal trainer since the 90s—back in my Taebo days as an aerobics instructor! But I didn’t believe I could make a career of it. Thankfully, God had other plans. In 2018, He led me to launch Define139 Training and Fitness to help women see themselves as God does: fearfully and wonderfully made (Psalm 139:14). What began as a boot camp in the park with two friends and my daughter has since grown into a powerful online and in-person community. When the pandemic hit, we pivoted online—and to my surprise, it flourished! People found connection and strength, right from their living rooms, and I found a new love for virtual coaching.

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After years of overtraining and under-eating, I finally hired a coach who helped me repair my metabolism and rethink everything I believed about food and fitness. That experience changed my life and inspired me to become a certified nutrition coach so I could offer the same healing to others. Today, Define139’s Metabolic Mapping program blends sustainable nutrition, strength training, and biblical encouragement to help women break free from diet culture and feel strong, inside and out. I know what it’s like to be tired, stuck, and overwhelmed—but I also know that with faith and the right support, lasting change is possible.

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Love, 

Greta Quesenberry

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Owner of Define139 Training and Fitness

NCI Certified Nutrition Coach and Mindset Specialist

ACE Certified Personal Trainer, Weight Management Specialist and Senior Fitness and Nutrition Specialist

OTA Certified Online Trainer

Our Team

Philosophy

At Define139, we believe your health journey is about more than a number on the scale—it’s about honoring the body God gave you, nourishing it with grace, and moving it with purpose. You were created by God, not culture, and your fitness should reflect your worth, not diminish it.

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As Psalm 139:14 says,
“I praise You because I am fearfully and wonderfully made; Your works are wonderful, I know that full well.”

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We don’t believe in fads, extremes, or shame-based motivation. Instead, we focus on science-backed strategies, faith-filled encouragement, and sustainable practices that support your metabolism, mindset, and muscle. Whether you're navigating hormonal shifts, recovering from burnout, or just feeling stuck, we’re here to walk with you—every rep, every meal, every step—toward strength and freedom.

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