“Dr. Jack, your work has made such a powerful impact on individuals of all ages. Your leadership at the seminars you created at the Arnold Schwarzenegger Fitness Festival is outstanding, and your talks are always one of the highlights of the weekend for me. I am proud to know you.”

“You are truly the virtuoso in the field of fitness sciences. Your ability to pique the interest of your students will continue to inspire us to become the best we can be. Thank you for all you do.”

“Dear Dr. Barnathan:
First, thank you for completely changing my life!
Your seminars leading up to my being awarded Master Trainer Status have completely impacted everything I do - both personally and professionally! Beyond all the knowledge I’ve gained is the inspiration you touch all your students with. You help us understand how our work is so much more than we ever understood before. I’ll always be grateful.”

“Dr. Jack is an innovator and a “way finder.” His thoughtful inclination is contagious. His methods channel positive energy and clients’ strengths (whether 1 on 1 or in a group) creating a unique synergy, particularly in his presence.”

“Dr. Jack Barnathan has been the most amazing mentor and friend any person could ask for. He is remarkably motivational and supportive. I would never be where I am if it weren’t for his knowledge, commitment and passion for all he does. Thank you Dr. Barnathan!! You are truly amazing and I thank my lucky stars that I was in your first class 9 years ago! STAY STRONG!!! I will because you taught me to!! Onward! Thank you!”

“Without a doubt, the reason for where I am in my life is largely shaped by Dr. Jack Barnathan. From the moment I met Dr. Barnathan almost 15 years ago; his steady guidance, teachings, support, and inspiration has impacted the course of my life profoundly. I have benefited immensely in both my athletic and business professional careers.
As a long distance runner, Dr Barnathan’s coaching has helped me perform stronger and consistently with every race I completed – I earned personal records each time, including a third finish ranking in my age group at the 2014 Montreal Marathon.

On a business level, Dr. Jack has mentored me on how to competitively distinguish myself from others. In so doing, I learned how to climb the corporate ladder, as a leader. My sense of style in interpersonal business relationships is the result of attending and learning tremendously from Dr. Barnathan’s teachings.

It is incredibly rare for a person to possess both unparallel business acumen and be renowned also as a leading authority in the arena on health/fitness. I’m honored to know Dr. Barnathan; he is the unique individual that seamlessly fits this profile. ”

“Dr. Jack has been a mentor of mine since 2002 when I became certified in Personal Training.
Little did I know the impact you would have on my life. Learning from you has been an unbelievable experience. You teach from the heart and bring the best out of the people you work with. You have inspired me to be a better version of me and have always believed I could do more, be more and deliver the best of myself to others.

Working with you over the years has been life-changing. And now, I am taking it to the “higher ground” with your guidance and support. Thank from the bottom of my heart.”

“From the first day I meet Dr. Jack my life changed! His knowledge and passion just seeps through him with excitement. He always had me at the end of my seat bobbing my head all day to everything he had to say.

After attending a couple of seminars my husband and I decided to open our own private fitness center. Dr. Jack has helped us in more ways than he could ever imagine before and after we opened. With his guidance of training, fitness, nutrition, our business consultations with him, acceptance and appreciation of this industry we were able to open our doors loud and proud for our community. Plus with his guidance we were booked after only being opened for a few months!

But even after opening our doors he has always been there for us with his love and support. Our consults are the most amazing experience with Dr. Jack. Thank you Dr. Jack for being an inspiring model for all of us worldwide! B-Xtreme Fitness Pro Center, Ltd family proudly and gladly thank you and you are always welcome in our home! ”

“Motivating and innovative are the two words which come to my mind after attending Dr. Jack’s seminar. If you are looking for that extra “push” in your training skills, or even just to further your education, this is- bottom line- the place to be.”

“Dr. Jack has the rare passion and ability to inspire all he comes across. In a time when individuals are merely existing he is truly living and breathing all that he preaches. To say that Dr. Jack changed my life is an understatement. He taught me how to live. To focus on the positive aspects of life and to let go of the negatives, which hold us all back. Not to live life with blinders on, afraid to make eye contact or say hi to others because were in a rush, but to stop and smell the roses every now and then. To interact and learn from all we come across. Through these life lessons I’ve found my true calling and words can’t even express how incredible a feeling that is. I owe him everything and am honored to have met him and call myself a Fitness Pro.”

“Dr. Jack Barnathan’s insight and knowledge of the health and fitness industry is unparalleled. He has been invaluable to me through the many stages of my career as a Fitness Trainer, Gym Owner, Figure Athlete, and National Fitness Model. There simply isn’t anyone better to help you find clarity and vision to set yourself apart for a successful future in this industry. ”

“To be the best, you must train with the best. Dr. Jack Barnathan is the best! His advanced knowledge, exceptional passion and flawless and motivating teaching technique propels his classes and seminars beyond expectations, to the highest level of excellence. He is a person of great integrity and humility. He is caring and committed to all his students and clients on all levels. I could not have found a more dedicated, authentic or inspiring mentor.

Thanks, Dr. Jack, for all the knowledge you’ve bestowed upon me! I feel most honoured and humbled, always!” ”

“Dr. Jack Barnathan has always been there, supporting me 110% in the achievement of all my goals. I know through his experience and insights he will do the same for you (...) He is one of the people I couldn’t have done it without”

“Your efforts profoundly influence the life of our community and are a shining example for us all”

“Dr.Barnathan is ‘The Strength Doctor’”

“I have known Dr. Jack for over 30 years and we have worked together on many events. His support, ideas, and creativity have added so much to not only my Fitness Promotions but also to many others in the sport. I truly appreciate all he has added to the sports world, to the Fitness community and for anyone seeking innovative support for their goals. I consider myself lucky and fortunate to have Dr. Jack Barnathan as a friend.”

“Your tremendous accomplishments in the fitness industry will be of great value in developing our new health and fitness focus”

“...a vital link in the national fitness family”

“The addition of your world-renowned expertise as a consultant is enthusiastically welcomed. We are honored to have you. ‘The Strenght Doctor’ join us to continue the excellence that the Trump Spa is known for and help us make our mark as one of the greatest spas to be found anywhere in the world”

“The first time I met Dr. Jack was at a fitness training workshop.  From that point on, my motivation soared and I felt like I was ready to tackle the world!  Dr Jack is extremely knowledgeable and his enthusiasm is contagious.  He has a unique ability to personalize your work/service as invaluable and will help set you apart from the rest. We live in a busy/hectic world with multiple responsibilities and demands ;the monthly brainstorm meetings are extremely helpful in remaining focused on achieving your goal/vision. Dr jack has an ability to see potential in yourself that you never knew existed. I consider myself extremely lucky to have met him and am grateful and honored to have an opportunity to work with him.  Thank you Dr. Jack for all that you do!”

“Dr. Jack’s workshops and one-on-one consultations have made a huge impact in my work. As both a fitness trainer and a competitive figure athlete, Dr. Jack has redefined the way I think about fitness concepts and training. He’s taught me to work smarter not harder using information backed by science. Dr. Jack knows how to break down the material making it easily understandable and relatable, and his teaching style is truly inspiring. His enthusiasm is contagious, and he makes me excited to get out there and help as many people as I can so they can have more energy and a better quality of life. Three cheers for Dr. Jack Barnathan!”

“An inspiring, motivating, positive, fun, and helpful person to name just a few things about him. He has helped motivate me, keep me on top of my own business and field, keeps me reaching for new heights and goals, brings me happiness every time we talk on the phone, and is such a positive influence to be around.

His energy just grabs a hold of you and makes you want to learn more not only about the health profession, but also yourself. He brings out the best in you with his coaching and consulting experience, and by giving yourself this extra gift and push of his skills, you can not fail.

He is truly an amazing person, good soul, and happy human being. I am so thankful that I got to meet him through the ISSA, and since have furthered my career with him, and also my own self. He will help you succeed by making you look deep into yourself and find what really motivates you in life, and bring those goals out of you to help you become successful! Thank you for being such a good friend and mentor Dr Jack! You are the best.”

“Dr. Jack has really helped my Fitness Life/Career Dramatically, it has only been a little over a year and I feel like I have achieved a plethora of knowledge from NYStrength. I just want to thank you thank you thank you thank you for all Dr. Jack. Now I am able to help my clients connect with their exercise and me emotionally, I can help them bring out their inner unique best and beyond. I am delighted to be a part of this motivational journey I am experiencing with Dr. Jack and all Fitness Design Professionals. Learning is limitless. I enjoy moving, Onward.”

“I had the pleasure of meeting Dr. Jack Barnathan and my life has not been the same. I decided to take Dr. Jack’s Masters of Fitness Design course which allowed me to also mentor him the past year.
My business, “No Mullarkey” Personal Training, has hit it’s all time high since hiring him as my business coach.
Dr. Jack has been my angel as he has supported me and encouraged me to shoot for the stars. He 100% has my back!
He also has been a huge support with my other goals of modeling and getting published. Since meeting Dr. Jack I have been published in almost every major national publication in the fitness industry! Due to this national exposure my online business has tripled.
I can’t thank my angel enough for supporting me and urging me to think outside of the box. If you are feeling stuck and want to take you business to the next level, it is a no brainer to seek out Dr. Jack Barnathan for consulting support.
Thank you Dr. Jack for all that you do. You work so hard at helping others achieve their goals in life and business no matter how big they are. You never cease to amaze me and I am so excited to see what the next year has in store for us. Thank you for genuinely caring about your clients and for being so positive and passionate at life. The sky is the limit!”

“Dr. Jack is one of the most thoughtful, kind-hearted and most inspiring individuals I have ever met.
He is incredibly passionate about his work and generous with his insights. He educates, helps and consults with outstanding results, helping his clients find their inner strengths. He is able to see unique qualities of his students and is able to guide them towards personal & professional success. He is a wonderful friend and an incredibly positive spirit. I recommend his talents to anyone who is looking for a mentor”

“Dr. Jack is the quietly-loud voice that is inside of you, and he can bring that voice to life! He has an amazing gift of seeing what your strengths are and help you build on those strengths. Dr. Jack isn’t just a mentor. He is a “power of presence” in your life that will lift you to be the absolute best! There is no doubt that I am serving my clients better with his mentoring. Thank you, Dr. Jack, for your never-ending encouragement, your loyal friendship, your overflowing support and for being a powerful presence in my life! You are truly unique in every way, and I am thankful and blessed to call you MY MENTOR and FRIEND”

“Dr. Barnathan is one of THE best people I have ever met in my life! He applies an unprecedented a to his office would often be my favorite day of the week while I was in NYC. He became a true friend. He never failed to have an amazing solution and answer to a problem. His expertise is comparable to none. Meeting Dr. Barnathan was a blessing and to this day, I continue to be inspired to pursue my dreams in every aspect of my life, no matter what they are!””

“You have been such a positive influence in my life. Consulting with you was the best choice I ever made. I would have left 40 years of Culinary Arts on the floor of the gym and had a life of counting to ten. Your support has been a guiding light for me. Your fire, enthusiasm, knowledge, and guidance now has me helping people with consulting, cooking demos, meal design, doing more than I could have ever dreamed. It is awe-inspiring to think of the people you have touched. Thank you just doesn’t say enough you have changed my life and even more the lives of the people I or we serve.”

“Working with Dr. Jack Barnathan has sincerely helped me grow my business, my relationships with my clientele, and my vision for the future!
He is so gifted in honing in on your personal strengths, and helping you develop a unique edge to set you above and beyond everyone in your field. After every consultation I feel even more inspired.
I am so grateful to be a part of this team!”

“Dr. Jack’s unique style of teaching, professional expertise, and welcoming spirit empowered me to feel confident that I was on the right path to success.

In learning with Dr. Jack I knew I was becoming a part of a community that are not just personal trainers, we are Fitness Professionals that are changing the world of fitness. I am not just a part of a group of students - I am a part of a family. Dr. Jack is the glue that binds the most remarkable fitness professionals all over the world together. The education that he provides inspires and lights a little fire inside every student to come back for more whenever possible. I know how inspired I was after my very first seminar as I was back the very next weekend and traveled all the way to New York from Virginia! Learning with Dr. Jack is a grand blessing and opportunity to discover your unique strengths. He is the ultimate mentor, friend, and inspiration.

There is nobody better - it’s that simple. I am who I am today and have been able to positively change the lives of numerous individuals because of Dr. Jack. His sincere and bright character is contagious!

Thank you Dr. Jack for being the best mentor anyone could ever ask for!”

“When I met Dr. Jack at my first ISSA seminar, I thought, “This man is Great!” I was drawn to his science driven teaching style and his obvious passion for helping others achieve their goals. Since 2002, I have attended as many of his workshops and seminars as possible. Throughout all of my schooling and different teachers, not one has made such an impact as Dr. Jack. Few people have the wealth of knowledge in science, business and real life experience he holds. Although he only appears to be one man, his combination of knowledge, skills and talents have made him into an unparalleled, successful team of people in the Health and Fitness Industry.

I opened my own gym, Pinnacle Fitness, in 2008. Still, I asked myself what I could do to take it to the next level. I knew without hesitation what I needed: I called his Executive Director Nicole Bruno and asked her, “How can I get Dr. Jack to Pinnacle?” In the beginning of 2010, I began consulting with Dr. Jack and the results have been incredible, terrific and real. More importantly, our collaborations are still continuing.

Dr. Jack has helped me tremendously, both personally and professionally. He is a great man with a love for teaching and helping others that is unrivaled. Thank you very much Dr. Jack for being YOU! ”

“Never meeting Dr. Jack until I attended his NY Strength System seminar in Los Angeles I found myself completely engaged in his educational yet entertaining lecture.
Dr. Jacks enthusiastic energy is contagious. I promise you will leave his seminar totally inspired and ready to take on the world.” ”

“As soon as Dr. Barnathan greeted me I felt so welcomed and at the completion of the three day seminar I was a HUGE Dr. Jack fan. His genius is unparalleled in the fitness industry. Not only is he the best in the industry, he is truly a wonderful human being. His enthusiasm and love for life and others is inspiring. His message is so powerful and his gift to teach, motivate and inspire is extraordinary. I am thrilled to be part of his Master of Fitness Design Workshop this January 2013. I’m ready for a life-changing experience. Thanks Dr. Jack for all that you do! ”

“Dr. Jack set the foundation to my career path in the fitness industry. When I lacked the confidence in myself Dr. Jack was there telling I was worth it and I had a fire inside me. I cherish him as my mentor, coach and friend. I have shared every success with him and he gets even more excited than I do, if that is even possible! He has a way with words and encouragement that surpasses anyone I know.
Dr. Jack, I would be lost without you. I am thankful to have you in my life everyday.”

“Working with Dr. Jack & the NY Strength team has been a life changing experience. Having the opportunity to network with positive, influential professionals who are persevering through it all to be the best they can be regardless of the circumstances, is truly a blessing and inspiration.
Dr. Jack’s expertise, passion for what he does and genuine love for others sets an example of greatness that speaks volumes to all whom he comes in contact with. I have been blessed to be one of those people that have had the opportunity to know, work with, and now ‘C MUSCLES’ with a man of such stature. ”