Jiu-Jitsu purple belt
Derrick Esterling
joins FCF to increase
conditioning for his
up coming fight
About Us/ Contact Us
Functional Core Fitness is dedicated to changing lives by teaching and motivating their clients to achieve any fitness goal in mind.
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Functional Core Fitness Personal Training will enable you to achieve and conquer
your fitness goals in the comfort of your own home. We have a team of fully qualified
trainers that show up at your doorstep, rain or shine.
Owner/Personal Trainer in Ca
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Hello I'm Omar, and I bring 10 years of experience in the fitness industry including
managing the fitness departments for 8 different 24 hour fitness clubs in the Los
Angeles and the south bay San Francisco area. I'm currently training at the world
renown Fairtex fighting gym in Mountain View Ca, seeking my advancement in Jui
Jitsu, Muay Thai, and Mixed Martial Arts. I also serve as the Conditioning coach at
Fairtex for some of their fighters and I have a background in boxing and football at the
collegiate level.
No matter what sport or activity your involved with I have the experience to enhance
your physical goal by improving balance, strength, coordination, flexibility, and your
core's ability to work in synergy. I'm currently certified through NASM (national
academy of sports medicine) and CPR certified and have been for ten years.
No matter where you would like to get in shape I will travel to your location-home or
business and bring all the equipment necessary to achieve your fitness goals.
"To know and not to do is really not to know"
Steven Covey
Functional Core
Fitness sponsors Mike
L. for Mixed Martial
Arts in Oct 2007
Luta Libre black belt
Cirillo Padiha and
Mauricio Souza join
FCF for their
conditioning.
Cirillo P. prepares for
his fight at
Erin-Go-Brawl on
March 15,2008
Jiu-Jitsu purple belt
Jimmy Jarquin Joins
FCF to improve his
conditioning for his
upcoming fight on
March 22,2008
Jiu-Jitsu/Luta Libre
black belt Leopoldo
Serao a product of
FCF conditioning
training will fight in the
IFL (international
Fight League) March
29, 2008
Latest News
Functional Core Fitness
C0-Owner/Personal Trainer in Arizona
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Contact Us
Functional Core Fitness is serving the San Francisco bay area
and Arizona


I am Larry Arnold , and a "Functional Core " is what I offer .
Back to Back National Champion ( University of Nebraska '94,'95)
NASM certified
Practitioner of Muay Thai
Extensive background in Football , Basketball, Swimming , Track and Field , and
Bodybuilding
With more than 20 years of athletic performance , and two national championships
under my belt , I know what it takes to be the best on the field of life . I have had the
honor of training with the best athletes in the world , and have designed programs
that challenge the best of the pros , as well as the exercise novice .
I instruct proper breathing techniques , accompanied by postural alignment to
deliver the maximum physical output that a human body can produce . Regardless
of your goals , learning the correct way to use your body is essential for everyone .
Whether you are trying to :
Take your athletics or body to the next level
Increase flexibility for better movement
Gain size / speed / power
Obtain nutritional counseling
Decrease body fat
Tone your abs
or just feel better , a functional core is the key .
While treadmills , bench presses and curls are important , I believe in working the
body the way the body works , as a unit . My brand of training can safely burn as
many as 1200 calories per hour , while keeping you mentally stimulated . The key
is to confuse your muscles by using constantly varied training modalities . The most
important factor is to have your exercises assigned based on your current body
alignment and development .
Using kettle bells , plyometrics , boxing and Muay Thai training , along with standard
practices , I can assure you of a complete and balanced body . Stretching sessions
, exercise balls , and balance/stability training are all useful tools when preparing
your body for increased stresses . It is those stresses that cause the body to adapt
by losing fat , or increasing strength .
I look forward to teaching you to identify your barriers , and to overcome them .
(currently available for one on one or group training in the Phoenix area )
training available in my studio or in your home
boot-camps offered for groups of four or more at reduced pricing
"Whether you think you can or can't , you're correct . "

Jiu-Jitsu black belt
Sergio Silva Joins
FCF to improve his
condtioning for his
up coming fights
Jiu-Jitsu 2nd degree
black belt Fabio
"Pateta" Prado Joins
FCF for condtioning
for his up coming
fights
Alex "The Russian"
Serdyukov from
WEC and a Fairtex
fighter conditions
with FCF for his
upcoming fight in
June 1 on WEC