Personal Trainer David Rothenberg

John O’Brien

Personal Trainer Tier I

Education & Certifications:
N.A.S.M – C.P.T., Associate Degree of Health and Exercise Science from Middlesex College, and currently working toward a Bachelor of Science in Exercise Science from Kean University.

Specialties:
Muscular endurance, muscular strength, cardiovascular endurance, body composition, and flexibility.

Read More

Fun Fact:
I like to spend time outdoors camping or hiking.

Why did you go into Personal Training?
I started working out in high school with my friends at the local police athletic league weight room and quickly fell in love with how it made me look and feel. When I started college, I realized I could study exercise science and turn my passion for working out into a rewarding career helping others achieve their fitness goals.

John’s Success Stories

NO SUCCESS STORIES YET

You could be the first! Request an appointment today.