Los Altos, CA
Buff Bones®: Exercise Your Bones Can Count On
Buff Bones® classes at PhysioFit bring the award-winning, medically-endorsed movement system for bone and joint health to Los Altos — a safe, research-based way to exercise with osteoporosis, osteopenia, or arthritis, taught by a certified Buff Bones® instructor.
Who Buff Bones® Helps
Created by movement specialist Rebekah Rotstein after her own osteoporosis diagnosis at 28 — for capable, active people who want to protect their bones without being talked down to.
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Osteoporosis & Osteopenia
A safe, structured way to exercise after a bone density diagnosis — built to load bones the way they strengthen.
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Arthritis & Joint Health
Joint-friendly movement that builds support around achy joints instead of aggravating them.
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Balance & Fall Prevention
Targeted balance and coordination work — the skills that prevent the falls that cause fractures.
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Posture & Alignment
Techniques to align joints and improve posture so your body loads correctly, all day.
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Strength & Toning
Whole-body conditioning that’s challenging at any level — not a seated senior workout.
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Injury Recovery & Athletes
Useful after general injuries, and a skill-builder for athletes and dancers.
How the System Works
Buff Bones® isn’t one kind of exercise — it’s a complete system that combines four disciplines into one bone-safe workout.
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Pilates
The foundation — controlled, precise movement that builds strength from the center out.
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Strength Training
Progressive loading with weights and resistance, because bones strengthen when they’re loaded.
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Functional Movement
Everyday movement patterns — so what you build in class shows up in your life.
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Therapeutic Exercise
Rehab-informed techniques that keep every movement safe for bones and joints.
Want the Full Story on Buff Bones®?
Read our in-depth article on how the program came to PhysioFit — Rebekah Rotstein’s story, how the system builds bone, and why the former U.S. Surgeon General recommends it.
Medically Endorsed, Taught Worldwide
“An excellent resource to continue to improve America’s bone health.”
Richard Carmona, M.D. · Former U.S. Surgeon General
Buff Bones® is taught by certified instructors in more than 30 countries and used in hospital-based programs, including Hartford Hospital’s Bone and Joint Institute.
Start Building Stronger Bones
Classes are taught by Alexis Iwasaki, our certified Buff Bones® instructor.
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See the Session Schedule
Check current fitness session times and find a slot that fits your week.
View the schedule — opens the PhysioFit fitness session schedule -
Request a Fitness Consultation
Talk with our team about your bone health goals and whether Buff Bones® is the right fit.
Request a consultation — opens the PhysioFit fitness consultation request -
Call or Text Us
Prefer to just ask? Call or text and we’ll answer your questions directly.
Call (650) 947-8500 — opens the PhysioFit phone line at (650) 947-8500
What Our Patients Say
Rated 4.9 out of 5 by patients across Silicon Valley.
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Rated 5 out of 5 stars
“The instructor I had was very knowledgeable and patient with me. She taught me a lot. The place was clean and everyone was very professional but warm. I hope to continue going there.”
Bonnie Allen · Mountain View, CA
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Rated 5 out of 5 stars
“My experience with PhysioFit has been very positive. The physical therapy was excellent and now I have moved on to a trainer for Pilates. I definitely recommend PhysioFit for both.”
S.F. · Verified Patient
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Rated 5 out of 5 stars
“Had a great session with my therapist where she watched and examined what was going on with my body in different positions. She saw a couple of things that needed attention and gave me exercises to help them resolve.”
Sherry Langbein · Sunnyvale, CA
Read more patient reviews — opens the PhysioFit customer reviews page
Your Bones Are Losing Mass Every Year You Wait
Bone loss starts earlier than most people realize. Buff Bones® classes at PhysioFit are a safe, proven way to fight back — ask us how to get started.