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Kristin Rios


NASM Certified Personal Trainer
NESTA Certified Personal Trainer
AFAA Certified Kickboxing Instructor
TRX Certified Instructor
B.A. UC Berkeley

Kristin has a strong athletic background that includes being a lifelong skier turned snowboarder, and competitive tennis and softball player. She developed an affinity for fitness at a young age, doing step-up power aerobics with her dad in the living room. This turned into a passion for seeking out and creating unique, challenging and fun exercise alternatives and led Kristin to explore gymnastics, rock climbing and kickboxing. She kicks butt in her powerful little 5’3” package, just ask any of her three brothers!

Kristin now kicks butt for a living. She makes sure that getting a tough workout doesn’t mean you can’t have a good time. Coaching classes and training clients is her passion, and she loves making a positive impact on people’s lives. Kristin is a dedicated motivator whose rapport with her clients leads to real friendship.





Gail Hotten


NASM Certified Personal Trainer
Madd Dogg Athletics Spin Instructor
B.A.  U.C. Berkeley

Gail is passionate about sports and fitness and working with people.  She combined those two passions when she became an instructor at a local gym in Berkeley years ago. Starting as a spin instructor, Gail found that she loves to teach and motivate others and then watch people’s fitness and technique improve.  Her love for teaching spin led to teaching bootcamp classes and becoming a Certified Personal Trainer. She loves working with clients, setting goals and then creating challenging and fun workouts.  She believes that fun comes from being challenged, training weaknesses and watching them become strengths. 

Gail promotes a balanced, active lifestyle and has a passion for making a positive difference in people’s lives. 


Pascha Brown


ACE Certified Personal Trainer
Certified Pilates Instructor (Balanced Body University)
TRX Certified Instructor
B.S. California State University Fresno

Pascha brings life, creativity and positive energy to help members and clients achieve their ultimate fitness goals.

As a mother she has been her own best client, exercising off more than 45lbs in only four months after delivery. With eight years in the fitness industry, she currently teaches Bootcamp and TRX Power classes and conducts personal training for individuals, partners and groups.

While Pascha’s programs are packed with variety and fun, you will still feel every bit of your workout. Her specialties include functional training, core conditioning, athletic training, and weight loss. Pascha excels in working with young people, the elderly, as well as women who are pre/post natal.





Zak Altenberg


NASM Certified Personal Trainer
TRX Certified Instructor

Zak grew up in Berkeley commuting around town on his bike, working in the service industry, and playing a lot of sports in his free-time.

After a series of injuries, Zak's focus turned towards rehabilitating his body and strengthening his muscles to prevent future injuries. Through his own healing process, Zak gained a deep passion for human movement and a desire to share his knowledge in the service of others.

Train with Zak to experience the fun and satisfaction of an intelligently constructed fitness program. Together, you will master technique and safely work towards your fitness goals.