Karen holds a bachelor’s degree in Psychology with a minor in Criminology. She is also a graduate of the National Personal Training Institute and Axiom Fitness Academy’s Qualified Personal Trainer Academy, and is a NASM Certified Personal Trainer. She is passionate about helping people build strength and confidence through fitness, creating a supportive, encouraging environment where clients feel valued, capable, and empowered rather than intimidated. Her approach combines strength training, stability, functional movement, and cardiovascular conditioning, with programs tailored to each individual’s goals, abilities, and needs. She believes fitness is about more than how we look; it’s about how we move, how we feel, and our ability to enjoy life to its fullest.

Karen has built her career around one consistent purpose: making a meaningful difference in the lives of others. Through her work in nonprofit resource development, she connected people and resources to missions addressing homelessness, food insecurity, addiction recovery, affordable homeownership, and other community needs. Today, she brings that same passion for people and commitment to improving lives into the world of fitness.

As a Dale Carnegie facilitator, Karen became known for her engaging, encouraging style and consistently high participant satisfaction scores. That experience reinforced a philosophy she carries into personal training today: meaningful progress begins with genuine relationships. She believes that taking the time to know people as individuals, understanding their goals, challenges, and motivations, is essential to helping them recognize their potential and achieve lasting success.

With fitness having long been a personal passion, becoming a personal trainer was a natural extension of Karen’s lifelong commitment to helping others grow, overcome obstacles, and become the best versions of themselves. Through movement, coaching, and genuine connection, she continues doing what she has always loved—making a difference in people’s lives, one person at a time.

My name is Avery Starnes and I’m a personal trainer/coach here at Jet Fitness.

I grew up right down the road in Sherrills Ford, and I’ve always been a passionate and
dedicated person who believes that fitness is about so much more than just physical strength —
it’s about building confidence, resilience, and a healthy mindset. I earned my Bachelor’s degree
in Exercise Science from the University of South Carolina, where I developed a deep
understanding of human movement, exercise physiology, and injury prevention.

I am certified by the National Strength and Conditioning Association (NSCA) and bring a strong
background in both personal training and sport performance coaching. I have worked with
clients of all ages and fitness levels — from youth athletes to adults looking to improve their
strength, endurance, and overall well-being. My experience includes designing individualized
training programs, teaching proper technique, and helping clients reach goals they once thought
were out of reach.

Growing up as a competitive gymnast,diver, and later coaching athletes myself, my love for the
gym comes from seeing how movement can transform people both physically and mentally. My
motivation stems from helping others discover what their bodies are capable of and watching
them grow stronger and more confident every session.

Whether I’m training someone to enhance athletic performance, improve balance and mobility,
or simply feel better in their everyday life, I bring energy, encouragement, and a genuine
commitment to my clients’ success.

I can be reached via email avery.starnes0128@gmail.com
I can also be reached on my Instagram at astar2826, TikTok at a.star_27 and Facebook at Avery Starnes

Hi everyone, I’m Genevieve. I was born in Florida but moved to Mooresville in 2004. My interest in fitness started at a young age, I played just about every sport in the book and loved them all. Except maybe soccer – in the blazing Florida sun, itchy shin guards, and of course the heat, not my favorite, but that didn’t stifle my love of all things fitness!

As I got older my interest developed into a passion. Since then I have been dedicated to understanding the most effective and efficient ways to help others transform through fitness.

I believe fitness should be balanced with a person’s lifestyle to remain sustainable. For me, a healthy lifestyle is so much more than just lifting weights. It’s about stretching, warming up, eating healthy, taking time for self-care, and getting enough sleep. I value mental and physical health and wellness.

I care deeply about my clients, and there’s no better feeling to me than helping somebody go through an experience that makes them happy, confident, and strong. I approach programming in the most simple and realistic way possible to ensure a person’s fitness journey is not a fad but a long-term transformation that will inevitably lead to a happier & healthier life that will minimize the risk of future health-related issues.

If you are interested in getting started, you can schedule a free fitness assessment, or if you’re ready to jump right in we can see what package works best for you. Yes, it takes motivation, determination, and consistency to succeed, but if you stick with it I can assure you that you will eventually look at yourself in a whole new light! You’ll not only look good but also feel better, happier, and more confident. All you have to do is take that first step on the journey to your new life.

• National Academy of Sports Medicine Certified Personal Trainer
• WERQ Dance Fitness Instructor

Contact Genevieve

My name is Caleb Decosta Mathis and I am a personal trainer here at Jet Fitness.

With seven years of experience in coaching and personal training, I am passionate about helping individuals of all ages build strength, confidence, and a deeper understanding of fitness. I earned my degree in Exercise Science from the University of North Carolina Wilmington, where I also competed in track and field, specializing in the decathlon, high hurdles, and long/triple jump.

I hold certifications in Personal Training, Nutrition, and Corrective Exercise through the National Academy of Sports Medicine. My background includes strength training, and sports performance, working with a diverse range of clients—from young athletes to older adults—helping them move better, prevent injuries, and achieve their personal health goals.

Whether you’re looking to improve athletic performance, maintain mobility and strength as you age, or simply feel better in your everyday life, I’m here to support and guide you. My goal is to break down barriers, eliminate misinformation about training, and create a welcoming environment where everyone can grow stronger—physically and mentally.

I can be reached via email Calebmathis20@gmail.com

Caleb can also be reached on his Instagram page and you can watch videos. calebmathis_fit/

I realized about 5 years ago that I needed to make a healthier change to my life so I hired a personal trainer to help me. Ever since, I’ve been addicted to fitness and learned a lot about how to utilize exercise and nutrition to not only change your body physically, but to feel better about your overall lifestyle. I figured if I could do it, anyone could, so I decided to help teach people what it takes. Jet Fitness is an awesome facility along with a great sense of family and I’m excited to move forward and help people change their lives! Contact Nick