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Begin Your Transformation Today

Who We Are​

We are trainers, coaches, motivators, supporters, and most importantly, your teammates. We are here for you. There is no one-size-fits all solution to fitness and health which is why we create a customized experience. Every person can progress at a rate they feel comfortable with but also a rate which pushes them to new peaks of performance.


At Body Tuners, we want to help our clients and we are dedicated to creating a relationship built on honesty, trust, and respect. That being said, we want to openly communicate with our clients to push them to achieve goals they may have never thought possible. Moreover, we want to deliver an experience focused on the client’s end goals and build a program that considers this unlike other programs that create random work outs or programming.

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Principles of our work

CUSTOM PROGRAMMING

We develop customized programs for our clients that allow them to achieve their fitness goals in a way that is safe, comfortable, and fun.


EXPERT NUTRITION

Every program includes detailed nutritional coaching specific to your goals and needs. We also provide customized meal planning options for clients interested in our meal planning program.

PRIVATE GYM EXPERIENCE

Our Private gym allows our clients to feel safe, comfortable, and motivated. Our gym is only available to those working with one of our personal trainers. Our gym is free of the distractions and unwelcoming situations you find at a traditional gym.

Benefits of Exercise

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Reduce Risk of Disease

Exercise boosts good cholesterol and decreases triglycerides in your body. This help to prevent or manage life threatening conditions.

Increases Energy

Regular activity improves the ability to deliver oxygen and nutrients throughout the body and thereby increasing energy.


Improved Mood

Physical activity stimulates chemicals like serotonin that help you feel more relaxed and overall happy.


Reduce Stress & Anxiety

Exercise and physical activity produces endorphins and also improves the ability to sleep, which in turn reduces stress.


Improved Memory

Blood flow to the brain is enhanced when you exercise. Increased blood flow allows your mind to work more efficiently.

Control Weight

Using up oxygen in the body burns stored fat and helps to maintain and control weight.

Our Team


Kristina Lewis

Owner/Founder

Personal Trainer

Contact me:

415-203-0112

[email protected]

Personal Trainer

Kristina opened Body Tuners July 1, 2016. Her hope was to create a positive healing environment for all ages, all fitness levels and all different types of people.

Kristina has always been passionate about fitness. Kristina has been involved with fitness or sports in one way or another since as far back as she can remember. Kristina has also actively participated in fitness and sports and learned how to leverage that knowledge to improve her fitness. After completing her bachelor of science in kinesiology she felt it was time to take her passion and make it a career.

Matthew Harris

Personal Trainer

Contact me:

831-430-6416

Matthew Harris has walked the road of fitness, health, and self-discipline.There are shortcuts and there are times to take the long road, Matthew can help you find your way through the thicket of self-discovery.Matthew is versed in kinesiology, human performance, coaching psychology, neuropsychology, martial arts for real world combatives.

Lori 

Logan

Personal Trainer

Contact me:

707-498-5601

Personal Trainer

Lori was born and raised in Humboldt county. She’s left several times but always seems to find her way back home. She was a professional fire fighter for 11 years before leaving the fire service to raise her boys. She knows all about the hard work necessary to compete and thrive in a physically demanding profession, as well as getting your body back after having children or recovering from injury. Lori has always been active and loved the outdoors, from rowing on the HSU crew team, to backpacking and hunting, and competing in Spartan and Tough Mudder races. She has experience training all levels of fitness from firefighters to those just starting it and would love to help you achieve your fitness goals. 

Jenna Swanson

Personal Trainer

Contact me:

(928) 714-8311

Personal Trainer

Jenna Brooke Swanson has been in love with movement for as long as she can remember. She is well-versed in a variety of modalities such as acrobatic movement, circus arts, belly dance, deep flexibility, strength training, pole dance, and more. She's been helping others meet their physical fitness, performance art, and dance goals for 20 years. 

Gerardo

Salas

Massage Practitioner and Personal Trainer

Contact me:

(707) 834-1299

Personal Trainer

My name is Gerardo Salas. I am a Holistic Massage Practitioner and Personal Trainer. I have been training in Martial arts for 10 years and have incorporated different kind of weight lifting modalities through out the years. Such as Bodybuilding, Powerlifting and Olympic Weight lifting. I was exposed to massage from a very young age and have been learning more about it. I focus on bringing the body back to maintenance level so that it will function at its best when performing. I use a mix of Swedish, Deep Tissue, Reflexology and Accupressure to relieve pain, improve recovery and circulation throughout the body.

Jenny Downs

Personal Trainer

Contact me:

(831)713-7933

Personal Trainer

Jenny's fitness journey started at age 36 (she's 54 now!), six years after the birth of her fourth child. She began to realize the importance of taking care of her physical self when the demands of single parenting four children began to feel overwhelming. Physical activity brought balance, self-confidence and, most importantly, good health. Now it is Jenny's passion to share what she has learned over the years about fitness, movement, and self-empowerment with her personal training clients. Jenny has over 15 years experience teaching martial arts and fitness. She has earned two 2nd Degree Black Belts and a Blue Belt in Brazilian Jiu Jitsu. She also has 20 years experience in functional movement training. Jenny specializes in helping people who are new to physical activity get moving while focusing on developing healthy fitness and mobility habits. She also loves teaching fitness kickboxing and self-defense skills!

Francine Appleby

Personal Trainer

Contact me:

(415)378-8170

Personal Trainer

Francine Appleby is a Certified Personal Trainer through ISSA. She is passionate about health and fitness and is eager to share that passion with her clients. Francine has struggled with her weight and diet for most of her life and could never seem to prioritize her health or get control over her eating habits. With a BA in Psychology and after years of working in the food & beverage industry, Francine knows how to work with people and is very comfortable and confident in her ability to be supportive & compassionate. She believes that our physical, mental and spiritual health are all interconnected and with the help of consistent exercise and a healthy diet, a harmonious balance can be achieved. Throughout her journey at Body Tuners, Francine has undergone her own transformation of mind, body and spirit and she isn't going to stop now. She is eternally grateful for the continuous support and motivation that the community of this gym provides, and couldn't be more excited to pay it forward to her own clients and help them change and better their lives as well!