Critical Mass NJ itness

776 Shrewsbury Ave Tinton Falls, New Jersey 07724

Find Your Strength

Certified Trainers Properly Coach You To Meet Goals, From General Fitness To Firming Up And Toning Trouble Areas. Our Team Creates An Individualized Plan To Help You Reach Your Goals

Fall Flow Day October 10th!

"2 Hour Instructional Seminar on Animal Flow, Empower Yoga and The Steel Mace"

Let's Get Started

We Want You To Join Our Community, As We Work Together To Challenge Your Individual Needs.

You Wont Be Alone, We Are Family!

Certified Coaches = Safety

Our coaches have years of experience in various types of fitness and sports.

Individual Approach = Gains

Every client of Critical Mass receives a personalized program of training and nutrition.

New Equipment = No Excuses

Incorporate tools to give you superior results










Jon Kalnas, BS

Ken Potis, BA

Dan Kiningham

Andrew Mallin

Sam Kiningham, MS

Niki Dellera, MAT, 200 RYT

Lexie Brito B.S.

Aiden Murphy


I'm a 56 year old female that suffers from chronic asthma and has had 3 c-section births and a hysterectomy. I had no lungs, no core muscles, no confidence, and no strength. Ken Potis and the trainers at Critical Mass have encouraged, taught and challenged me.

I now hate missing my exercise routine and my strength and confidence level is through the roof. Literally-if I can do it, anyone can do it. Give Critical Mass a try!

In the words of my new Critical Mass Family and my new moto "Just Show Up!"

Kim Ambrose

I moved to Monmouth county a couple years ago and needed to find a new gym, but I didn't want to get a membership at a glorified weight room again. I needed something fresh, unorthodox and motivating, something I haven't seen before. Critical Mass gave me all of those things and more. Through the diversity of the trainers and coaches, combined with the varieties of methods they utilize in their programs and classes, I was able to change the way I looked at fitness and my lifestyle. Diversity, accountability, self motivation and comraderie were easily achieved in a short period of time. It quickly became somewhere I was anxious to get back to every time I left. Critical Mass is undoubtedly the best GYM I have ever gotten involved in. I will always recommend critical mass to anyone, regardless of their age or fitness level.

Scott Crotta

I worked out at Critical Mass for about 6 months before we had to move from NJ for my husbands job and I was so sad to go! I joined initially to get fit for my wedding and became way more stronger, leaner and confident through participating in group classes.

As a former college runner, I was very active but lacked proper lifting techniques. Ken was a great teacher and extremely patient with me to ensure that I wasn't injuring myself to reach my goals. If you are looking for a great gym to challenge you with amazing coaches who will support you & turn into friends, you have found the right place.

Alli Cooper

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