Meet Coach Marion
Larnell Marion is an ISSA Certified Personal Trainer & Nutrition Coach who specializes in Youth Strength and Conditioning-Sports Performance. Coach Marion's sincere care and passion for the youth gives him a unique way to inspire and motivate which maximizes the athlete's full potential. Coach uses over 20+ years of experience in a background of athletics playing collegiate football as well as a military veteran who led a life of working out and training well after his sports career ended. His aim is to take his athletic and military background, as well as experiences, and pour into the youth. He always had a strong desire to get the most out of each individual so that they may tap into the best version of themselves and go dominate! Coach Marion lives in Argyle, TX has a wife and 3 children that he adores!

the origin story
WHY MARION FITNESS & NUTRITION

Foundation for Lifelong Athletic Success
We focus on developing proper movement, coordination, and confidence early—helping young athletes build a strong foundation that supports long-term performance, health, and athletic growth.
Character and Confidence
Building
We don’t just train athletes—we build leaders. Every session reinforces discipline, work ethic, and mental toughness, helping kids and teens develop confidence on and off the field.
Age-Appropriate,
Progressive Training
Our programs are tailored to each stage of youth development—Junior (7–10), Varsity Prep (11–14), and Collegiate Prep (15–18)—ensuring safe, effective training that evolves as athletes grow stronger and more skilled.
Expert Coaching,
Personalized Support
Led by a certified coach who understands youth development, we provide hands-on instruction, motivation, and accountability to help every athlete reach their full potential in a fun, positive environment.

