Want to feel more alive, free and at peace in YOUR body–no matter what your size, shape, age or condition?  If “yes”, then discover the benefits of the Gyrotonic Expansion System.

The major benefits include:

Increased strength, stamina, flexibility and coordination

These benefits are the same if you are experiencing back or shoulder pain, feel weak or stiff in your joints or spine, or are recovering from an injury or knee/hip surgery.  The Gyrotonic Expansion System increases mobility, balance, and energy so you feel more alive!

What are Gyrotonic Exercises?

Gyrotonic exercises are a totally new system of movement developed by the renowned Romanian fitness expert, Juliu Horvath, in the early 1980’s. Incorporating the principles found in yoga, dance, gymnastics, swimming and tai-chi, Horvath developed a unique system of equipment and exercises to work the body from the inside out. The exercises are based on an expanding series of fluid circular and spiral movements, with adjustable resistance and incorporating a synchronized breathing pattern, all resulting in working the musculature, cardiovascular and neurologic systems simultaneously.

Reasons to do Gyrotonic exercises:

Mobilize the spine and free the joints
• Develop profound core body strength
Recover lost function due to injury
Release tension in the body
• Strengthen the immune system
• Improve body alignment
• Enhance body awareness
• Increase bone strength and density
Revitalize natural energy
• Restore body symmetry

Client Working Out on Gyrotonic Equipment

What are GYROKINESIS® Exercises?

GYROKINESIS exercises utilize the same principles as GYROTONIC movements but are done on a stool or on the floor. A typical GYROKINESIS class begins by engaging the spine and pelvis with simple awakening exercises. While seated, participants mobilize their body through a series of arching, curling, bending, twisting and spiraling movements combined with corresponding breathing patterns that stimulate the nervous system and open up energy pathways. These same movement patterns are expanded to release the hip, knee, hamstring, quadriceps and so on, in all possible directions.

After experiencing many personal struggles and chronic illnesses, Juliu Horvath spent many years in self-exploration and study. These experiences not only led him to true healing, but he was also inspired to create a movement system that offers the same benefits to others. Some of the hallmarks of GYROKINESIS exercises are the fluidity of the movements and the ease with which one can perform them. This approach systematically and gently works the joints and muscles through rhythmic and undulating motions.

The system’s unique movement signature is three-dimensional, using gentle repetitive circling, spiraling and undulating exercises in a set rhythm. Most importantly, an energetic polarity is encouraged by simultaneously reaching in opposite directions, creating both internal balance and support. Through the constant ebb-and-flow of push-and-pull movements, connective tissues are stimulated to maintain their suppleness.

Fluidity is the key. Postures are not held for long periods of time. Instead, postures are smoothly and harmoniously connected through the use of breath, making exercises appear and feel more like a dance and swimming than like traditional yoga. The more advanced classes offer endurance training to participants prepared for more strenuous activities. All classes, from beginner to advanced, encompass not only sitting but also laying and standing positions.

This an excellent way to experience a new kind of organic exercise derived from the motions of swimming, dance, tai chi, gymnastics and yoga and can be done by young and mature alike. Those who practice GYROKINESIS tend to be more relaxed in their daily lives, more comfortable in their body and can move with greater strength, flexibility and ease.


are registered trademarks of Gyrotonic Sales Corp and are used with permission.



Siena McCarthy — Gyrotonic and Gyrokinesis Instructor, certified by the Gyrotonic founder, Juliu Horvath.

I’ve been a dancer since age 3, a mother, business owner, sports enthusiast and a passionate healer, helping clients for many years.



• Pilates
• Massage Therapy
• Neuromuscular Integrative Action (NIA)
• Integrated Awareness®
• Visceral Manipulation
• CranioSacral Therapy
• ParkinsonWISE Trained Professional 
(from Parkinson Association of Northern California).

I have practiced yoga, Feldenkrais, Zero Balancing and Pilates for over 25 years.

Of the many healing modalities I have experienced, the Gyrotonic Expansion System provides the most genuine experience of relaxation while moving, play while working out and the pleasure of being in a body. Whether you are recovering from injury or improving existing skills, I create a safe place for new learning to occur so you can reach your goals.

Classes & Rates


Thursday  3:00 pm -4:00pm

Location: footloosedancecenter.com
6425 Redwood Dr. Rohnert Park

Call 707 377-4496 to reserve space

$35.00 per class
GYROKINESIS CLASSES (On Demand Video Classes)  

Coming Soon

Monday – Friday    9:00 am–5:30 pm

Gyrotonic (Individual)
$135  per 50 minute private session

Gyrotonic (Duet)
$95  per person per 50 minute session

Gyrotonic (Trio)
$75  per person per 50 minute session

Gift certificates are available and are a great way to introduce a family member, friend or co-worker to this amazing work.

Payment by cash or check

Spiral Expansion Fitness Studio

2 Padre Parkway Suite 106
Rohnert Park, CA 94928-2115
(707) 377-4496



Contact Spiral Expansion

2 Padre Parkway Suite 106
Rohnert Park, CA 94928-2115
(707) 377-4496

Call or e-mail me with any questions you have about your specific needs.

Driving Directions:

From 101 Northbound  –  Take the Rohnert Park Expressway Exit.  Turn right at the stoplight (Rohnert Park Expressway) and quickly get into the left turn lane. At the first light, turn left on Commerce Blvd. Get in the right lane.  Go about one block. Turn right onto Padre Parkway, just past Popeye’s Chicken. Go to the 2nd building on the left which is 2 Padre Parkway. Go through the front door to the back of the building, Suite 106.

From 101 Southbound –  Take the Rohnert Park Expressway Exit.  Turn left at the stoplight (Rohnert Park Expressway.) Go over the freeway and get into the left turn lane. At the second light, turn left on Commerce Blvd. Get in the right lane.  Go about one block. Turn right onto Padre Parkway, just past Popeye’s Chicken. Go to the 2nd building on the left which is 2 Padre Parkway. Go through the front door to the back of the building, Suite 106.