Cornerstone Coaches

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Lou Bell, CSCS

Louis “Lou” Bell is a Certified Strength and Conditioning Specialist (NSCA-CSCS) and USA Boxing certified coach with a background in amateur boxing and athletic development. He works with youth, adults, and competitive athletes combining technical skill training with structured strength and conditioning.

Currently preparing to compete in masters boxing, Lou stays actively involved in the process he coaches. His approach is rooted in discipline, progression, and incremental development. Through Cornerstone Gym, his focus is building a consistent presence in the community and creating a place where athletes of all levels can train with purpose and improve over time.

Founder & Boxing Coach

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Sydni Cubia

Martial Arts Coach

Sydni Cubia brings over 21 years of martial arts experience to the floor as a 2nd Degree Black Belt in the Chuck Norris System. She’s been coaching kickboxing and karate since the age of 14, developing athletes with discipline, precision, and intensity.

With a special passion for working with young martial artists, Sydni focuses on building confidence, strength, and mental toughness that extends beyond the gym. As an educator and recreation specialists, and a NASM-certified virtual personal training coach, she blends structured training with mentorship to help every athlete grow in and out of the ring.

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Jiu Jitsu Coach

TBA

Aaron-Micheal is a long time martial artist excited to share his practice with you, he earned his black belt in taekwondo in 2014 from Howard University, after which he extended his practice past the decade mark by rounding out his skills with kickboxing and boxing techniques. He is excited to join the coaching staff after teaching adults fitness and martial arts practices for the past 5 years. He enjoys bringing a combination of fun, high energy, and technical instruction to you so you can benefit the most from your practice.

Aaron-Micheal Blackman

Martial Arts Coach