John O'Brien, Personal Trainer

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ACE Professional Profile



John O'Brien

Arnold, MD US 21012-2363

About John O'Brien: Go to for more information about Kevin

ACE Certifications: Personal Trainer

Years Certified with ACE: 11 years

Programs & Rates: Contact me

Years in the Industry: 21+ years

Specialties: Group Fitness
Boot Camp
Group Strength
Nutrition for Health and Wellness
Sports Nutrition
Weight Loss / Weight Management
Personal and Small Group Training
Bodyweight Training
Core Training
Sports Performance
Special Groups and Conditions
Overweight and Obesity
Women's Fitness


Personal Trainer Specific Information

Years of Experience: 21+ years

Preferred Client Type: Athletes, Healthy Adult, Underweight, Youth, Other, Fire/Police/Military

Client Training Locations: Club and Home

Average Clients Weekly: 6-10

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