Our Personal Trainers

Personal Trainers

Back to Personal Training

Personal trainers at Sierra Fitness are committed to their clients’ workout success.

Members won’t find better qualified or diverse staff geared to investing in their end game; trainers will coach, counsel, collaborate and even cheerlead (not literally) to accomplish that goal. Contact our Front Desk for more information.

Check out Sierra Fitness – a fitness destination/gym located in the Catalina Foothills of Tucson and conveniently near to various types of entertainment, shopping and dining options.



John is a young trainer who has conquered his own fitness journey by losing 30lbs of fat while also gaining 25lbs of muscle during it. His goal is to help others achieve any and all of their fitness goals. Whether it is to gain size and strength to rehabilitation and mobility work, John is ready to help with your specifications. He wants his clients to feel that their work is providing benefits. Consistency and work outside the gym but facilitating a lifestyle change can change a client’s life for the better.

John knows that all clients are going to be unique and different not only in their wants from the training tenure but also in the type of training regime that is needed to progress towards the goals. “You simply cannot apply the same workout for different clients” he says.

He has recently earned his high school diploma from Catalina Foothills High School and is currently a student of American Council on Exercise University. He will be attending Gonzaga University in the fall. He is in progress to be certified through American Council on Exercise (ACE) very soon. He has over 4+ years of working out, 2+ years of on-site personal training experience and has worked with many different trainers and coaches to understand how to be the best trainer he can.



Health and fitness should be fun while being challenging, and Shaun strives push his clients to achieving their full potential while keeping things engaging. His clients realize they should push to be 1% better everyday to eventually achieve a healthy lifestyle. Shaun looks to better peoples lives and inspire them to be the best form of themselves.

Shaun has garnered immense amounts of experience with over 20 years of work in the industry with many clients staying with him permanently for years on end. A master of the craft Shaun is.

Shaun is certified by American Council on Exercise (ACE), Crossfit, and RKC. He has been with Sierra Fitness for over 17 years. He has worked with clients ranging from young children, high school athletes who have gone on to play college sports, college athletes, persons undergoing post-surgical rehabilitation and functional training and even a member of the US National Triathalon team. Most of Shaun’s client base are individuals wanting to lose weight, build lean muscle mass and better their lifestyle but is more than prepared to work with clients of all types and goals.



Having earned a B.S. Degree in Physiology from the University of Arizona, Chris is a American Council on Exercise (ACE) Certified Personal Trainer. His work experience includes:

  • University of Arizona Campus Rec – Personal Trainer/Group Exercise Instructor
  • Banner/University Medical Center – Exercise Specialist/Personal Trainer
  • Arizona Arthritis Center – Exercise Specialist

His personal trainer philosophy? Help people of all ages and fitness levels reach their full physical potential so they may enjoy life in a more fulfilling way. Chris incorporates functional training in his workouts, making sure each workout helps clients improve physical performance outside the gym. He strives to make each workout a challenging learning experience; ensuring clients know how to properly perform exercises along with the ensuing benefits.

Clients who train with Chris can expect a fun and challenging work‐out geared to their specific goals. He promotes utilizing a variety of tools including weight machines, stability balls, medicine balls and balance trainers, as well as their own body weight to achieve the desired level of fitness. Chris wants his clients to find enjoyment in exercise and make it a part of their well-balanced lifestyle.

Among his personal training specialties are:

  • Sport-Specific Training
  • Conditioning
  • Functional Training
  • Core Strength
  • Proprioception/Balance Training

Chris enjoys personal training a range of clients including weekend warriors, desk jockeys and older adults. He understands it’s his job to motivate his clients to unlock their physical potential.



Christina’s personal training philosophy is that exercise is an investment in her clients’ future happiness. She emphasizes a smart combination of nutritional knowledge, strength training and flexibility.

Personally training clients for 25 years, Christina’s #1 goal is to teach others to take control of their own health and fitness destinies and to realize the rewards of true health in mind and body.

She strives to be a positive role model for each one of her clients – living the lifestyle she espouses during her training sessions. Clients who have success do so because of their own determination and hard work; she merely facilitates.

Christina has worked with clients aged 9 – 100, all with a variety of fitness levels and goals.  She specializes in working with older adults and people with diabetes.



Galvin, M.A., C.S.C.S. lives by the fitness mantra “Excellence is a habit.”  How that habit is achieved is through a prioritized balance, quality and consistency of exercise, nutrition and recovery.

His personal training mission is to help his clients maximize their potential and live an active and healthy life by providing an elite level of coaching and service and customized workout plans and practical nutrition advice. And working with positive energy and developing habits that can be maintained.

Galvin’s core personal training and fitness components for his clients include:

  • Regarding EXERCISE, Galvin emphasizes and implements a blend of personally-designed strength, mobility, cardiovascular exercises; tips and practice involving how to prevent injury, correct Imbalances, adapt to limitations as well as how to employ proper technique, quality effort and proper progression.
  • Regarding NUTRITION, there is a review, analysis and modification regarding when his clients eat, what they eat, how they eat and how much they eat.
  • Regarding RECOVERY, Galvin encourages establishing an optimal training program, maintaining a consistent sleep schedule and establishing a proper sleeping environment: light, noise, temperature.

Through a series of evaluation, goal setting, planning, and taking action positive results happen!



Heather is a personal trainer and coach who works with all ages and fitness levels of clients to improve strength, endurance and flexibility.  She enjoys assisting in their positive transformations. Further, she understands – through fitness – people can live longer, healthier lives.

Heather graduated from The University of Pittsburgh with a B.S. in Sports Medicine and dual minors in Speech Communication and Biology.

Over her 20-year fitness career, Heather has:

  • worked for a chiropractor overseeing patient physical therapy
  • focused on clients with disabilities, diseases and injuries
  • worked with West Virginia University Athletic Department Football and Basketball teams to improve team flexibility as a means of injury prevention
  • headed the fitness wellness program for West Virginia University Hospital employees
  • was health coach for the Monongahela County homeless and teen runaway shelters – providing exercise and education to children
  • offered post physical therapy to patients at a physical therapy clinic, helping them prevent future injuries
  • taught fitness classes and personal training throughout

Since Heather’s return to Tucson in 2002, she has been teaching and personal training at Sierra Fitness and elsewhere.

Heather is certified through ACE fitness personal trainer, AFAA primary group fitness, 200-hour E-RYT Yoga Instructor, Kettlebell Training, Tabata programming, TRX-suspension Training, Cycling, dynamic flexibility, Pilates Mat, Bosu core conditioning, Strength Conditioning for the aging population, Pre-Natal fitness, foam rolling myofascial relief, aquatic aerobics, cardio combat and functional training for all stages of life.


MIDJI (individualized Pilates)

Midji, BS and MS, has been an ARA certified water fitness instructor since 2009 and an ADAA certified personal trainer since 2004. In 2003 she obtained her Pilates mat and machine certification from Long Beach Dance Conditioning and has been teaching Pilates ever since.

She also has completed Yamuna Body Rolling training, Levels I and II and NIA white belt training. Additionally, Midji has completed training in Practical Yoga, Stability Ball, BOS and Body Bar Flex.

A Stage III breast cancer survivor, Midji has both the understanding and knowledge to work with populations with special requirements, i.e., cancer survivors and older clients with unique challenges.



Susie has been teaching group fitness since 1987 and taught at a Sneakers Fitness in Wisconsin. She became a fitness instructor at Sierra Fitness in 2009 following a move to Tucson with her husband, Steve.

Susie is certified in group exercise, barre, strength conditioning and Tabata and HIIT training.

In 2011, Susie expanded her fitness education and was certified by the NASM as a personal trainer.