AXIS is proud to offer golf-specific assessment and training, with trainers who are Certified Golf Fitness Instructors through the Titleist Performance Institute.

Andrew Losik, Performance Trainer and Golf Fitness Professional
Performance Trainer and Golf Fitness Professional

Andrew Losik

Bart Lunsford, Club Trainer
Club Trainer

Bart Lunsford

Jeremy Fernandez, Master Trainer
Master Trainer

Jeremy Fernandez

Sergio Maldonado, Master Trainer
Club Trainer

Sergio Maldonado

Performance Trainer and Golf Fitness Professional

Andrew Losik

Andrew is a NASM certified personal trainer and a former PGA Golf Professional with a specialty in helping golfers improve their game through strength and flexibility training. His biggest passion however, lies in helping people reach their goals even if that is to simply move and exercise without pain. “With all clients, strengthening the body while increasing mobility is our most basic approach to training. We will establish a strong foundation of correct movement patterns, and whether your goals are fat loss, increasing muscle tone, strengthening athletic performance or improving your core strength and balance, we can help you get there.”

As a golf professional, he has worked at The Olympic Club in San Francisco and Brentwood Country Club in Los Angeles, helping golfers of all skill levels, from juniors and beginners to Division I NCAA players. He currently trains clients from all walks of life and is committed to helping them reach all of their fitness, health and wellness goals.


  • Golf specific strength and flexibility training
  • Fat loss/metabolic conditioning
  • Speed and agility training
  • Core strength and stability
  • General health and wellness

Professional Details

  • NASM Certified Personal Trainer (National Academy of Sports Medicine)
  • PGA Golf Professional (Titleist Performance Institute Level 2)
  • B.S. Economics – UC Davis

Client Testimonials

“With my busy schedule in management consulting, I was not getting the exercise I needed – it had gotten too easy to make excuses not to. That changed as soon as I started working out with Andrew. He reignited my passion for fitness. He listened very carefully to what my fitness goals were – and set out a plan whereby I soon realized gratifying results. His approach is very focused and disciplined – and my workouts with him never seemed a chore – the time always flew by. I left the gym always feeling energized although I already had put in a full business day. Our sessions varied so I was never bored and always felt challenged. And when my clothes started fitting a lot better – I told Andrew it would not have been possible without his expert assistance !!”

~Ed L.

Club Trainer

Bart Lunsford

Bart’s specialties include fat loss, injury prevention, body sculpting, ski conditioning, and mountain biking conditioning.

His training philosophy: “Strive for excellence in everything you do, and whatever the outcome, you will be a better person for it. The path to excellence is an ongoing journey and never a final destination!”

Professional Details

  • Titleist Performance Institute Golf Fitness Professional (TPI)
  • Certified Personal Trainer, American Council on Exercise (ACE)
  • Certified Personal Trainer, International Sports Sciences Association (ISSA)
  • Certified Personal Trainer, National Academy of Sports Medicine (NASM)
  • Performance Enhancement Specialist, National Academy of Sports Medicine (NASM)
  • Paul Chek Exercise Coach
  • RKC
  • Functional Movement Screen certificate
  • Olympic Lifting Coach
  • B.A., Exercise Science, Westport College
  • M.S., Sports Medicine, Penn State Extension (in progress)
Master Trainer

Jeremy Fernandez

Jeremy has been working at Axis since 2005. His client ages range from 16-87 years old. He specializes in a variety of fitness goals ranging from weight loss to injury rehabilitation and prevention. He believes that nutrition, stress reduction, and recovery are just as important as cardiovascular and muscular training.

Training Philosophy

No matter what your fitness goals are (weight loss, weight gain, injury prevention, injury rehabilitation, health improvement, strength and conditioning, or sports specific) we always start with an assessment to check for any muscular strength imbalances, flexibility imbalances, injuries, postural deviations, or asymmetries in the walking gait, before starting an exercise program. We will also briefly discuss how eating habits affect 60%-65% of your fitness goal. Speaking of goals, your exercise program should be goal oriented, especially for new exercisers. Fitness goals must be realistic and measurable in a way that you see your progress. Fitness programs are tailored to your fitness goals because everyone is different.


  • Golf Specific Training to effectively develop power, strength, flexibility, and mobility in the golf swing, and to reduce and or correct swing faults and injuries.
  • Myofascial Release-a specialized stretching technique to treat patients with a variety of soft tissue problems. Put simply, it is stretching of the fascia.
  • Stick Mobility Exercises
  • Functional Range Conditioning Exercises
  • Titleist Performance (TPI) assessments
  • Strength & Conditioning
  • Speed & Agility Training
  • Weight Gain/Weight Loss
  • Core & Stability Training
  • Total Body Conditioning
  • Circuit Training
  • General Health and Wellness

Professional Details

  • Titleist Performance Institute Level 3 Golf Fitness Professional
  • Titleist Performance Institute Level 2 Power
  • Super Speed Golf Certified Level 3
  • B.S. Kinesiology, Athletic Training, San Jose State University (2000)
  • A.A. Physical Education, College of the Sequoias (1997)
  • Certified Athletic Trainer, National Athletic Trainers Association (2000)
  • Certified Strength and Conditioning Coach, National Strength and Conditioning Association (NSCA) (2000)
  • Health Fitness Instructor, American College of Sports Medicine (2001)
  • TRX Sports Medicine Level 1- Care and Rehabilitation of Athletic Injuries
  • USAW Level 1
  • FRC Certified
  • Stick Mobility Level 2
  • Ace Pre/Post Natal Certificate

Client Testimonials

“This coming September, Jeremy Fernandez and I will celebrate our tenth anniversary together as trainer and client! These years with Jeremy have changed my life-a thirty pound weight reduction; ‘wanting’ to exercise not ‘having’ to exercise; and constant compliments about how much younger I look. I owe this all to Jeremy who has made exercising a crucial dimension in my life.”

~Elizabeth B.

“He makes me laugh – and gets me fit – never gets me ‘off balance’.”

~Colleen B.

“Jeremy is a great trainer because he makes you work hard but never over your limit. This is especially helpful for people with injuries or restrictions. Jeremy works with you to get you healthier and stronger and you will see those improvements in no time!”

~Tina S.

Club Trainer

Sergio Maldonado

I’m open for business for virtual training and wanted to use it as a platform to explain a little more of what I can do. I look forward to meeting you! Muchas gracias (that means thank you in Spanish)

I have been training clients since 2007 and working at AXIS since June of  2008, specializing mainly in fat-loss, youth training and performance training (training for sports or events). I believe fitness is different for everyone but must encompass a proper mindset, nutrition and lifestyle for the individual’s goals as well as needs. This all leads to having a more fulfilling life.

I am proud to still be with the very first client I began training 10 years ago. It’s a great feeling to have the same excitement for training that I did when I first started and love that I have so much more to learn. I feel fitness is a lifelong process that changes as we grow and develop. I am constantly working to better myself, and my training, so I can better serve my clients.

Five Non-fitness Related Facts About Sergio

  • Loves the 49ers
  • Puts hot sauce on everything
  • Hates puzzles, less now than he used to
  • Consumes hours of podcasts and audio books each week and reads real books too!
  • Has claimed partial custody of his wife’s Chihuahua/Dachshund mix named Spice

Professional Details

  • National Academy Sports Medicine (NASM): Performance Enhancement Specialist (PES), Certified Personal Trainer (CPT)
  • Precision Nutrition Level 2
  • Nutrition Coach Russian Kettlebell Certified (RKC)
  • Strong First Kettlbell Girya (SFG), Strong First Bodyweight (SFB)
  • EXOS Rehabiliation Specialist
  • International Youth Conditioning Association Certified (IYCA )
  • Functional Range Conditioning (FRC) Mobility Specialist
  • Athletes Performance Level 1 Certified
  • Grey Cook Functional Movement Screen Certified (FMS)
  • American College of Sports Medicine (ACSM)  Certified Personal Trainer (CPT)
  • CrossFit Level 1 Coach
  • American College Exercise(ACE) Pre/Post Natal Certified
  • San Jose State University, San Jose, CA B.S. degree in Business Administration: Management, concentration in Entrepreneurship, Minor: Kinesiology

Client Testimonials

“I have been working with Sergio for over 2 years. Even though I have always exercised regularly, I felt that something was missing from my workouts. My training with Sergio has focused on strength, conditioning and core work which has been a perfect complement to my usual cardio activities. I really notice a difference in my balance, coordination and energy level. Sergio listens to my feedback about what seems to work and what doesn’t, but also finds ways to challenge me and encourage me to try things I would not have considered without his guidance. I have been impressed with his knowledge and motivation to continuously improve his training techniques. Even though working out can feel like an arduous task, Sergio’s great personal style makes training enjoyable.”

~ Carma H.

“Since I’ve began training with Sergio, I’ve lost 20lbs and two pant sizes. He is a great trainer who is able to motivate and encourage me to push myself a bit more each time. He makes my sessions fun as well as educational. My overall stamina and endurance have greatly increased and I now know how to eat properly and exercise using proper form. I appreciate the fact that Sergio continues to further his fitness education by learning and taking classes to stay current on the latest research based techniques. Because of my sessions with Sergio, I am even more confident now when I exercise by myself outside of Axis and try different sports.”

~ Joe C, Training Since December 2010

“I have been working out with Sergio as my personal trainer for the past two months, and in that time I have lost 7 lbs, increased my energy level and improved my overall health. Sergio has a really well rounded approach to training that is not strictly limited to challenging me with workouts, but also includes advice on diet (what to eat and how much), supplements and lifestyle habits that have been really helpful too. He knows how to push you during workouts, but he also keeps it fun, informative and interesting so you don’t burn out. Before I started training with Sergio, I found it hard to fit exercising in to my life. So Sergio suggested scheduling 2-3 regular sessions with him per week (which gave me the discipline I needed to make working out a habit) and also recommended a lot of other “quick home workouts” that I could do during my off days. Two months later, the results are great and working out is a daily priority that I look forward to. Because of Sergio’s continued training, I know my results will just get better and better.”

~ Julian H.

“A less-than-desirable bone density test first led me to seek out Sergio. In addition to wanting to improve my test results, I also wanted to work on core strength and flexibility. After working out twice a week for eight months, what I have noticed is not only increased flexibility and strength, but a much more toned body and greater muscle definition. I wasn’t expecting that. It’s an added bonus. I look forward to my workouts with Sergio. Even the occasional day when I think I don’t want to work out, I end up feeling enthusiastic and energetic as soon as I start my session. I can’t wait to take that next bone density test!”

~ Stephanie N.

Golf Swing

TPI Certified

Golf Trainer

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