Group Exercise Staff

One valuable asset that cannot be replicated is the Cornerstone staff. We're proud of the seasoned professionals that have chosen Cornerstone as their home. You won't find a friendlier, more talented staff anywhere. This is our culture, our core value and the reason that everyone here is dedicated to your experience.
Joanna Abbott

Joanna Abbott

Passion, motivation and education are the keys to helping a member achieve the lifestyle that they are capable of reaching. There is nothing as rewarding as watching the transformation of a person when he or she discovers (on their own) what they really can do. What I am a part of the transformation as a positive influence, it is an unbelievable feeling.

Certifications:

Group Exercise and Spinning® Director | ACE, NASM, GAP | Certified Personal Trainer | RMR Test Administrator | Golf Conditioning Specialist | Silver Sneakers Administrator | TRX Certified | Madd Dog Spinning® Certification | BTS Certified Instructor | Step, Grp Muscle, Abs and Zone Instructor | RKC Kettlebell | Kettle Bell Instructor
Lisa Pensa

Lisa Pensa

Group fitness should be innovative, functional, educational and entertaining and should be provided in a friendly, inviting atmosphere. When all this it true, clients are sure to see results!

Certifications:

AFAA Primary Group Exercise Certification | BTS Group Power Certification | Registered Respiratory Therapist | Bachelor of Science in Biology
Jennifer Cahalin

Jennifer Cahalin

I strive to be fun, energetic, committed to excellence and passionate about giving members the workout they deserve.

BTS Group Power Certification | 20 years involved in the fitness industry | BS from University of South Florida
Diana Valldejuli-Meacham

Diana Valldejuli-Meacham

I was Born in Caracas, Venezuela and grew up speaking both English and Spanish. Zumba is such a fun way to express and connect. The members are our priority. I strive to give them a great class. I want them to feel successful, have fun and meet their fitness goals. My focus is on their needs!

Certifications:

Zumba Basic I & II | Zumba Gold | Zumba Toning | Elementary & Middle School | Spanish teacher
Stephanie Masceri

Stephanie Masceri

Exercise should be fun and uplifting. I want my students to feel good about themselves not just after a class, but during it as well. Zumba allows me to share my love of fitness and dance with a latin flavor that everyone can do. I try to create an atmosphere that is welcoming, energizing and empowering. People should want to work out, not feel like they have to! That's what I strive for in all my classes.

Certifications:

AFAA Certified | Zumba Certified
Mary Tawa

Mary Tawa

I love helping others to feel strong, healthy and good about themselves! I strive to help others find joy and enthusiasm in reaching their fitness goals.

Certifications:

AFAA Certified Group Exercise Instructor | Reebok Flexible Strength Certification | BFA in Dance | Brown Belt in Shotokan Karate
Brian Mavi

Brian Mavi

Come to party for an hour! At the end, you'll sweat, smile and even lose a few pounds. Be patient, take your time and leave no one behind.

Certifications:

International Fitness Association | Certified Personal Trainer | Group Fitness Instructor
Amy Schmidt

Amy Schmidt

I love group fitness! While participants in a class have individual goals, they can both inspire and be inspired by each other. Put on some great music, put together some challenging moves, fatigue every muscle and let's have some fun!

Certifications:

AFAA Group Fitness | BTS Group Power
Diana Maria Angel

Diana Maria Angel

I was born and raised in Bogota, capital of Colombia, and have lived in 3 different countries in the last 4 years. I can tell you that is a gift! I love people, cultures and dance. Teaching gives me all three!

Certifications:

Certified Zumba Instructor | Beat It Instructor | Personal Trainer
Sue Long

Sue Long

I feel that an effective teacher influences the lives of her students. My goal has always been to make everyone comfortable, secure, have an enjoyable experience, and leave the class having learned something new. I love what I do, and continue to be motivated and inspired by every person who comes into a class, or a private session, with the desire to learn.

Director: Doylestown Pilates Program

Certifications:

BS Physical Education and Dance, Penn State University | Pilates Institute of America: Master Level Trainer and Certified in all levels of Mat and Equipment Pilates (Classic Method) | Pilates Instructor Certification Workshop Facilitator | Certified ACE and AFAA Group Exercise | Balletone Certification | Madd Dog Athletics Spinning Certification
Beth Butterworth

Beth Butterworth

Exercise has always played an integral part of my life and through Pilates I have found the benefits to cross over into all aspects of being healthy and living an active life. I feel so strongly about Pilates, that I became an instructor so I could share this wonderful method with others.

Certifications:

BS Occupational Therapy, East Carolina University-School of Allied Health | Pilates Institute of America: Mat Level I and II, Reformer Level I and II
Barbara Weikamp

Barbara Weikamp

"The greatest good you can do for another is not just to share our riches, but to reveal to him his own." - Benjamin Disreali

Certifications:

Ananda Chakra Yoga and Teacher Training | Yoga adjustments course with David Swenson | AEA Practical Pilates | AAAI Pilates Mat II | Shaitsu Massage Therapist with studies in Qui Gong, Do In, Mantak Chia's work.
Julie Stein

Julie Stein

Empowering cardio workouts are inspired by energetic music and heart thumping movements to blast calories and tone muscles that will push your system into high gear. Group X! Let's do it together!

Certifications:

AFAA Primary Certification   |   Les Mills   |   Body Pump, Body Step & Body Flow Certifications   |   Madd Dogg Certified   |   Spinning™ Instructor   |   World Spinning™ & Sports Conferences   |   Philadelphia & NYC Fitness Conferences   |   Body Training Systems Group Power Certification
Teresa Whitcomb

Teresa Whitcomb

I believe fitness is a way of life and something you incorporate into your daily routine, not something that you do every once in awhile. Consequently, I try to create a positive, fun, and encouraging atmosphere in all of my classes so that members look forward to the experience and keep coming back!

Certifications:

20 years experience teaching group fitness   |   AFAA certified group fitness instructor   |   Mad Dogg Star Level 2   |   certified spinning™ instructor   |   BTS certified Group Power instructor   |   AAAI & Turbo Kick certified   |   kickboxing instructor
David Topel

David Topel

Combining my passions for dance and athleticism led me to Zumba Fitness - the perfect combination of the two. Zumba has opened the door back to fitness for me and thousands of other deconditioned athletes and it's a joy to pay it forward.

COME JOIN THE PARTY - IT'S A FITNESS FIESTA!

Certifications:

Choreographer   |   Phila Area Repertory Theater Company   |   Nationally ranked Top 10 USMS Swimmer   |   Zumba Fitness Instructor Certifications: Basics and B-2
Jeronimo Siqueira Da Silva

Jeronimo Siqueira Da Silva

"I love to teach my culture. My goal is to pass on the coaching that I have learned, help you enjoy learning and feel good and healthy from practicing it. I look for everyone to enjoy and have fun in Capoeira as much as I do."

Jeronimo (Contra-Mestre Jeromin) began his Capoeira training in 1991 in his hometown of Belo Horzonte, Minas Gerias with Mestre Fumaca (Group Morro de Sao Bento). In 1996 Jeronimo moved to New York City and resumed his training with Mestre Lincoln (Grupo Angola Palmares). In 2000 Jeronimo joined A.S.C.A.B. and received the rank of Contra-Mestre in 2008 from his current Mestre, Mestre Doutor.

As a professional performer, teacher and musician, Contra-Mestre Jeromin strives to create an environment that promotes self-expression and inspires students to reach their full potential while preserving the rich culture of his country.
Leigh Robertson

Leigh Robertson

"I have such a passion for this art, it's history, culture, intellectual and physical benefits and the community it creates. Teaching others to embrace Capoeira, to reap the benefits and to have so much fun doing it is inspiring for me!"

Leigh (Instructora Gata Brava) has been training under the guidance of Mestre Doutor, A.S.C.A.B. Capoeira, since 2000. After receiving her Instructora cord in 2006, she has been a featured guest at Capoeira events throughout the country. She has also been cast in a Rockstar Energy Drink commercial and is now filming as the Capoeira body double for the lead in Disney's 2010 movie "Step Up".
Gina Ranelli

Gina Ranelli

"I love teaching both group exercise and spinning. I enjoy the energy that comes from these classes."

AAAI / ISMA certified group fitness and step instructor  |  Certified MADD DOGG Spinning Instructor  |  Certified Middle School Science Teacher
Donna Luck

Donna Luck

Of course, I always keep in mind safety, effectiveness and fun when teaching my classes, but I get REALLY EXCITED when a student leaves my class feeling a sense of accomplishment or feeling more energetic. I love when a student feels comfortable enough to giggle and act silly! My biggest reward is being able to teach!

AFAA, ACE, NASM Personal Trainer | Certification, Physical Mind Pilates Mat | IDEA Member | Cardio Dance, Pilates and Sculpt Instructor
Joanne Atkinson

Joanne Atkinson

Exercising as part of a group is a very powerful motivator and brings a sense of accomplishment thru connectivity. For the past 20 years I have taught Aerobics, Step, Kickboxing, Sculpting, Spinning and Weight Training classes, I'm so grateful to have the opportunity to take part in bringing change to people's fitness level and overall health.

"Health is the thing that makes you feel that now is the best time of the year." - Franklin P. Adams

AFAA   |   BTS - Body Training   |   Systems Certified
All images by Adrianna Scott - Adrianna Scott Photography - AdriannaScott@gmail.com
Employment Opportunities
Want to be part of the team? If you are a people person, dedicated to health and fitness, and wish to join our team, please email us at: info@CornerstoneClubs.com. You will be contacted after your email is received. You may also visit any of our locations and fill out an application. It is not recommended that you mail your information to us. Click here for more information on positions at Cornerstone.

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