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  • Greg Sterner, Owner, Licensed Physical Therapist

    Years of Experience

    • 24 Years


    • Licensed Physical Therpist (BS in Health Sciences Northeastern University)
    • Certified Strength and Conditioning Specialist (NSCA)
    • Certified Personal Trainer (American Council on Exercise)
    • Certified Nutrition Specialist (American Academy of Sport Dietitians and Nutritionist)
    • McKenzie MDT Certified
    • FMS Certified

    Ever since Greg Sterner was in high school, he knew he wanted to help people get fit, strong and stay that way. Greg decided to pursue his passion and graduated from Northeastern University with a Bachelor's degree in Physical Therapy. For the past twenty years he has been helping people get in the best shape of their lives as a certified personal trainer through the American Council on Exercise (ACE) and a Nutrition Specialist through the American Academy of Sports Dietitians and Nutritionists (AASDN). In addition, Greg has also been helping people overcome injuries and obstacles to fitness as a Physical Therapist, with his elite certification as a McKenzie Certified Mechanical Diagnosis and Treatment Clinician, as well as a Certified Strength and Conditioning Specialist (CSCS) through the National Strength and Conditioning Association. Greg was eager to take his knowledge and experience helping people one step further, and in 2009 opened Fitness Together Point Loma, a one-on-one private personal training studio in the heart of Point Loma at Liberty Station. Now with the success of Fitness Together in Point Loma, The Sterners' have been able to realize of dream of operating a second location in Rancho Bernardo. Fitness Together specializes in one-on-one workouts with your personal trainer in a private training suite, where clients can work on individual goals and where trainers are sensitive to special conditions, such as injuries. In addition to changing the lives of his clients, Greg has volunteered and spoken to senior groups on such topics as arthritis and physical training. He has also co-presented seminars in La Jolla and Aspen, CO on sports performance training for athletes in all realms of sports. Greg also is a proud member of the San Diego Rotary while helping to mentor students interested in a health profession career.

    in my free time I like to
    Greg, his wife Kara, and daughters, Gabriella and Kassandra enjoy getting outside and being active in the great San Diego weather. They reside in Rancho Bernardo, but love going to the beach and traveling to all parts of California and overseas.

  • Hannah Colosio, Training Manager

    Years of Experience

    • 7 Years


    • Certified Personal Trainer (NASM)
    • Corrective Exercise Specialist (NASM)
    • Certificate of Fitness Instruction/Exercise Science (UCSD)
    • BA Neuroscience and Behavior (UCSC)
    • TRX Group Suspension Training
    • Total Gym Gravity Certified Trainer

    I have experience training a wide variety of clients including new/returning exercisers, active older adults, post surgery, those seeking weight loss/muscle gain, and advanced weight training. I’ve taught classes for first time exercising seniors, and I’ve trained teenagers to take physical readiness exams (military, police, etc). No matter your starting point, as long as you show up with a good attitude and a willingness to learn, we can make it happen. My goal is to show you how strength training can make you confident, strong, and independent. I’m honored to be part of your team and I take joy in my job as I view exercise, a healthy lifestyle, and nutrition to be a form of preventative medicine. I have always had a passion for and been actively involved in a fit lifestyle. I was a competitive swimmer until age 20 and since then have kept busy with weight lifting, yoga, swimming, and running. It is not just something I preach to those I am training - I strive to lead by example and show my clients that with hard work, a positive attitude, and the right nutrition and exercise for your body, any goal is achievable!

    in my free time I like to
    When I’m not at Fitness Together, you can find me getting my own workout in or hiking with my husband Carlos and our dog Frank. I also love gardening and doing home improvement projects on our new home.

  • Patrick de la Garza, Certified Personal Trainer

    Years of Experience

    • 6 Years


    • Personal Fitness Trainer Certification, National Association of Sports Medicine (NASM)
    • Holistic Lifestyle Coach Level 1/2 C.H.E.K Institute (Corrective Holistic Exercise Kinesiology)
    • Certified Exercise Coach, C.H.E.K. Institute

    For me, coaching others to achieve their fitness and well-being is a personal and professional passion. My love of movement began at a young age and has continued into my adult life. I’ve played many different sports and activities including: baseball, football, Jiu Jitsu, and Olympic weightlifting. As I got older, I realized that I could emulate the same movements I loved so much playing sports, in the gym in what we call “functional exercise”. This gave me the freedom to move however I wanted without the limitations of playing a sport. My passion for being physically active also led me to working different jobs prior to becoming a personal trainer. Some of the jobs include working as an emergency medical technician, landscaping, working on boats, and being a surf instructor. I’ve found that my experience in these different fields has benefited me as a personal trainer. I like to be outside connecting with nature; hiking with my dog and close friends. Improving one’s fitness and well-being through exercise is a lifelong pursuit that should be dynamic, effective, and fun. In addition to movement and exercise, I coach my clients on optimal nutrition and lifestyle practices. It is an honor to work with my clients to help them achieve their health and fitness goals.

    in my free time I like to
    In my free time enjoy exercising outside and spending time in nature. I also enjoy eating delicious food and watching comedy movies/shows.

  • Karla Fernandez, Certified Personal Trainer

    Years of Experience

    • 3 Years


    • Bachelors in Exercise & Sports Science at the University of San Francisco
    • NASM Certified Personal Trainer
    • Certified Flexologist

    Growing up, I have always lived an active lifestyle. I was a company Polynesian dancer for 14 years, and I competitively participated in Varsity sports throughout high school. Although I've been active my entire life, I didn't discover my passion for fitness till college, where I attained my Bachelors in Exercise & Sports Science at the University of San Francisco. Upon graduation, I landed a position as Rehabilitation Aide at Sharp Healthcare. For 5 years, I worked in both inpatient and outpatient settings, treating patients with various ailments and injuries. During my time with the Sharp Experience, I had the decision to either pursue a masters or doctorates. Interested in the business side of sports, I decided to return to my alma mater to get my Masters in Sport Management. With my second degree, I was given the opportunity to work in the sports and entertainment industry. There, I worked in marketing and public relations for large companies, such as Creative Artists Agency and Octagon. Although my time in the sports and entertainment industry was exciting and humbling, I could not ignore my passion for fitness. I saw how damaging working a sedentary job can be to the human body first hand. My coworkers developed back and shoulder pain. I even experienced lower back pain. Overall, I wanted to utilize my knowledge and experience from my time in the medical field to help relieve that pain. Thus, I quit my corporate job and returned to the health and fitness industry. As a fitness trainer, I am a certified National Academy of Sports Medicine Personal Trainer and a certified Flexologist. I am committed to helping my clients achieve their fitness goals, whether that's to lose weight, become stronger, or to simply keep moving. I always approach my clients with a positive, empathetic, and enthusiastic attitude. But most of all, I always want them to feel comfortable and believe they can achieve anything. 

    in my free time I like to
    Go dancing, working out, reading, researching and learning various rehab/exercise techniques, and simply just being outdoors. But what I mostly enjoy as a San Diego native is discovering hidden secrets in the finest city in the world, such as exploring beautiful hikes, swimming in the ocean, experiencing new dishes at farm-to-table restaurants, and visiting historical sites. 


here’s how it works


signature fit evaluation

A complimentary signature process where we learn about your goals, health history, and take you through a mini workout so we have the information we need to begin building your customized program.

full body assessment

A comprehensive fitness assessment to collect baseline metrics that will help us track your progress.

personal training session

Meet your trainer in your private suite (or virtually) for your 1:1 session to begin your completely customized workout program.

progress checks

A comprehensive assessment every 6 weeks so we can celebrate your progress and set new goals.


  • Personal, non commercial, individual attention, happy family atmosphere

  • Fitness Together is absolutely the best physical training experience I’ve had. Over the past six months, Greg has not only helped me reduce pain in my lower back and hip (I was feeling pretty bad), he has guided me in building some core and upper body strength. Early on, we identified I was lacking those, so we set a realistic goal and we’re working toward it. We’ll get there. I’m grateful to have a trainer like Greg!

  • The trainers are excellent. They Yelp you use excellent form and just the right weight. I’ve been going here for years and I love the personalized service!

  • Personalized service! Adjusted to fit your particular needs in order to provide the best results!