You Are Fearfully & Wonderfully Made
We coach women through strength training, accountability, and community — in a welcoming, women-only environment built for lasting transformation.
About the Gym
Step into a women-only strength studio built on faith, science, and sustainable results. Whether you're brand new to strength training or ready to take your fitness to the next level, you'll find a welcoming space to build strength, restore energy, and grow your confidence—without fads, extremes, or quick fixes.
The People Behind the Mission
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
Areas of Focus
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
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
Areas of Focus
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 journey should reflect your worth, not diminish it.
As Psalm 139:14 says
“I praise You because I am fearfully and wonderfully made; Your works are wonderful, I know that full well.”— Psalm 139:14
Come See Us
Ready to see what Define139 is all about? Come visit us — no pressure, no judgment. Just a welcoming space built for you.
📅 Find a TimeSee It for Yourself
Get a feel for the space, the energy, and the community before you ever walk through the door.
Membership Options
At Define139 Women's Strength Studio, your membership is more than just access to a gym—it's a structured, supportive path to getting stronger, feeling better, and finally seeing lasting results.
Your membership includes 24/7 access to our women-only facility, plus full access to our Virtual Gym Coach program—delivered through our custom Define139 app.
Inside the App You'll Have
This isn't random workouts or wandering the gym floor—it's a purposeful, guided plan you can follow every time you walk in. You'll be surrounded by women who are learning just like you—encouraging, supporting, and cheering each other on every step of the way.
We require a 6-month commitment because real, sustainable change takes time. This gives your body the opportunity to adapt, your strength to grow, and your habits to truly stick—without relying on quick fixes.
If you're ready to stop guessing, start building strength, and be part of a community that truly supports you, this membership was created for you. 💛💪
Looking for more guidance, accountability, or a little extra push? These upgrades are designed to take your results to the next level—while still meeting you exactly where you are.
Our small group sessions combine expert coaching with a supportive, high-energy environment. You'll be guided through structured, strength-focused workouts designed to help you build muscle, improve endurance, and feel confident in your training.
For the most personalized experience, private training gives you one-on-one coaching tailored specifically to your body, goals, and needs.
Who This Is For
Testimonials
Their success can be your success — start today!
"Define 139 is exactly what this area needed! The hours are super convenient, the vibe is positive and motivating, and Greta and Greg are absolutely awesome. They've created a welcoming space where you actually want to show up and train. I can tell you that the positive energy in the gym is contagious. If you're looking for a place that's more than just a gym, more like a community…this is it. For example, I missed for some medical issues and they messaged to check in on me! Highly recommend!"
"Greta is an excellent personal trainer with a vast knowledge of health and nutrition as well. She goes above and beyond to help each individual reach their goals. The addition of her women's only gym helps women learn and work out in a comfortable atmosphere. I highly recommend giving her a try."
"I love this family owned gym. The atmosphere is great and they are so welcoming and helpful. I highly recommend. I love the virtual trainer program. It's very user friendly but the trainers are always willing to help or answer questions if needed."
"I love this gym SO much! It's my happy place, my safe place, and I can just be myself. Greta, Greg and family are wonderful people, lifelong friends, and what sets them apart from others, is you can tell they truly care about what they do and helping women get strong and healthy."
"Great place for women to workout and feel safe. Love that it is faith based and we have a new scripture on the wall to encourage us every week! Greta is very knowledgeable, encouraging, and helpful!"
"This place has been so amazing for me and my health journey. I'm still learning new things every single day. Everyone there, Greta, Greg, and Sophie have been wonderful in helping me with whatever I need or any questions that I have. They have all been so encouraging and awesome at cheering you on."
"I love, love, love this gym. It is just the perfect place to workout. It is so clean and well taken care of. The staff is always there to help and cheer you on to success."
"It's a great place to work out. The Define 139 app gives you step by step instructions so your workout is fun and structured. Everyone there is helpful and friendly. They also offer metabolic mapping which I just enrolled in but so far they have made me a plan which I'm very excited to begin."
Need More Info?
We are a space designed especially for women to get stronger and gain confidence in the gym. With our "done-for-you" Virtual Gym Coach program (included in our membership) you will never have to figure out fitness on your own again!
Our memberships begin at $22 per week and include far more than just access to a gym.
At Define139 Women's Strength Studio, every member receives:
We created Define139 for women who want more than just a room full of equipment. Our goal is to help you walk in knowing exactly what to do so you can feel strong, comfortable, and successful every time you come in.
For women wanting additional coaching and accountability, we also offer Strength & Sculpt Group Sessions and Personal Training options.
Yes! Our highly qualified and experienced trainers lead our Strength and Sculpt Group sessions as well as private personal training sessions for those who want more individualized attention. These training options are available with commitments beginning at 8 weeks until you are confident to train on your own. We got you!
Yes. We know that real lasting change takes time so our membership commitments are 6 months. Members can continue after as long as they would like! No additional commitment is required. We only ask for a 14-day cancellation notice.
Yes! We have coaches that work specifically with our Metabolic Mapping program. This program takes a wholistic approach to help women optimize their metabolisms and lose weight for good—no gimmicks, fads, or quick fixes. Many of our members find that the gym membership with their personalized Metabolic Mapping program is the perfect recipe to help them finally reach their fat loss and strength goals—once and for all.
Define139 Women's Strength Studio is a 24/7 access facility designed to give women flexibility and freedom to work out on their schedule.
While the gym is not staffed at all hours, our team is regularly in the studio throughout the week for personal training, coaching sessions, and group training. Every member also receives a complimentary "Get Started" session so they can learn the app, equipment, and feel confident using the gym.
Our goal is to create an environment where women feel comfortable, supported, and empowered whether they are working out independently or alongside a coach.
Find Us
Define139 Women's Strength Studio
495 Blue Prince Rd, Suite 110
Bluefield, WV 24701
Member Access
Open 24/7 for all members
Gym Tours
By appointment only