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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.

  • Lawrence Rosales, General Manager of Fitness & Wellness

    Years of Experience

    • 10 Years


    • Masters of Science in Exercise Science, Point Loma Nazarene University
    • Bachelor of Science in Pre-Physical Therapy, San Diego State University

    Ever since I was a child physical activity has been part of my life. Playing sports throughout school was my passion and being in good physical shape always followed. I joined the Air Force at 19 years old becoming an Aerospace Medical Technician and EMT. This sparked my interest in the human body and its adaptability. As a medic for the Air Force, I took on the additional duty Physical Training Leader for the squadron, where keeping Airman fit and healthy was my job. I picked up a job as a personal trainer and held free clinics on the weekends to prepare individuals to get in shape before heading to basic training. I am dedicated to bringing you the best physical training, rehabilitation, pre-habilitation, and overall health guidance. Anyone can achieve the goals they set out for, as long as they have the motivation, dedication, and guidance. I am here to help you in all you need to be in the best shape you can be for a healthier life! Together we are a team and can make a difference!

    in my free time I like to
    I enjoy listening to live music from all genres and feeling the fresh ocean air that San Diego has to offer. I like to ride my motorcycle in early mornings to see the beauty of the hills in Julian. You will find me playing sports on the beach such as volleyball or in the gym swimming and exercising.

  • Hannah Colosio, Certified Personal Trainer

    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.

  • Brett Stanley, Certified Personal Trainer

    Years of Experience

    • 10 Years


    • Certified Personal Trainer (National Personal Training Institute)
    • KFIT USA Kettlebell Certification
    • BOSU Certification
    • Nutritional Consultant
    • Wilderness First Responder (WFR)

    Brett moved to San Diego from Connecticut 14 years ago and has been working as a personal trainer for the majority of his time here. Sports and physical fitness has always been an integral part of his life. Brett became a Certified Personal Trainer (CPT) and Nutritional Consultant though the Nation Personal Training Institute (NPTI) of San Diego in 2010. Brett has worked for Constant Motion Fitness, Crunch Fitness and is now pleased to join the Fitness Together Team. He has worked with Private, semi-private and group classes of a variety of clientele from members of the former San Diego Thunder semi-pro football team, to seniors looking to improve their general health and wellness. Whatever your goals may be, Brett can help you make and execute a fitness and nutritional plan to streamline your progress to success.

    in my free time I like to
    Go Rock Climbing, Backpacking and train a variety of martial arts. As a 10+ year member of the San Diego Mountain Rescue Team you can usually find Brett in the outdoors exploring and enjoying all the wonderful scenery California has to offer.

  • Casey Stroosma, Certified Personal Trainer

    Years of Experience

    • 5 Years


    • Certified Personal Trainer (National Academy of Sports Medicine)
    • Certified Corrective Exercise Specialist (National Academy of Sports Medicine)
    • B.S. Nutrition and Dietetics (San Francisco State University)

    I have been an active athlete for almost my entire life, moving my body physically has always been synonymous with play and stress release. From early years through high-school I tried every sport my school offered including; baseball, basketball, track and field, golf, football, and wrestling. My favorite hobbies included skateboarding, snowboarding and weightlifting. In college I pursued Bachelor’s degree in Nutrition and Dietetics from San Francisco State University. Since then, I have picked up surfing, powerlifting, freediving, boxing, and jiu jitsu as hobbies. The freedom physical fitness has given me to try so many different activities without the fear of injury, has enriched my life to its core. So naturally, sharing that gift with others has become my passion. I put my education and past experiences to work, to help you rehabilitate from past injuries, and to prevent any potential injuries from coming your way.

    in my free time I like to
    Outside work you can find me training in the gym, and at the beach surfing, or freediving. I love going on trips to new places, meeting new people and watching funny movies and videos at home.


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.


  • I started working out after having breast cancer and heading to osteoporosis. My primary goal with FT was to increase bone density. I now have normal bone density.

  • Friendly people who care about helping you achieve your goals. FT helped me prepare to hike the Appalachian Trail at age 65. If you have the will, FT will show you the way.

  • I have been working out at FT for a couple of years and it has made a dramatic difference in my health. I no longer need hip surgery and I am able to dance and hike again.

  • The high quality training and nutrition advice at Fitness Together has helped me reach my fitness goals. I’ve lost 20 pounds and have a BMI of 22.8!