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(708)844-7887
(708)844-7887
Mark is a fitness expert, and the founder of OntheMark fitness. With a passion for helping individuals transform their lives through fitness, Mark brings a wealth of experience and knowledge to our coaching team:
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NASM Certified: Personal Trainer
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NASM Certified: Nutrition Coach
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NASM Certified: Corrective Exercise Specialist
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ESA Certified Strength & Conditioning
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NASM (National Academy of Sports Medicine)
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ESA (Exercise Science Alliance)
As the lead coach at OntheMark fitness, Mark is dedicated to creating personalized workout plans and providing expert guidance to help you achieve your health & fitness aspirations. His holistic approach to health and wellness encompasses both physical and mental well-being, ensuring that you receive comprehensive support on your fitness journey.
At OntheMark fitness, we're not just about workouts - we're about empowering you to embrace a healthier happier lifestyle.

Understanding, love, education, & motivation.
Mark R. Antosh
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