Margherita Riello

Margherita Riello, and Michael Bell, Owners, founded Bell Fitness in 2014.

Margherita, born and raised in Marostica, Italy, moved to Arizona 10 years ago. Margherita is a Body Transformation Expert, certified ISSA Personal Trainer, Precision Nutrition Specialist, and Functional Aging Institute Certified Coach. Margherita has been a certified coach since 2005.

Margherita has been featured in Voyager Magazine, Phoenix Entrepreneur Magazine. She has been recognized as part of the top 25 Fitness influencers in the Phoenix area and Litchfield Park’s local business person of the year 2021 by the Women’s Networking Alliance.

Margherita loves her community and team; her mission is to help and inspire thousands of people every year in Litchfield Park and the surrounding community.

When Margherita isn’t working, she loves to be outdoors hiking, running, walking, doing anything active, and spending time with her family and friends.



Coach Michelle McCaughey

Michelle McCaughey joined Bell Fitness in 2020. Michelle has been teaching and coaching group fitness since 2016 and received her national certification in 2019. Michelle is versed in P90X, Insanity, MASHUP, Fire Up, and L1ft. Michelle’s passion for weight training started in high school and is something that she still loves today.

When Michelle is not training at Bell Fitness, she enjoys gardening, spending time with her family, long walks with her dogs, and hiking.



Coach Senthia Allen

Senthia Allen joined Bell Fitness in 2019; her passion is to help people make fitness fun, which encourages a balanced, healthy lifestyle. The gym for her is her happy place. As a young adult, Senthia competed as a powerlifter and later was a figure competitor for NPC.

Senthia is a native of Arizona and mother to a wonderful daughter. When not training at Bell Fitness, Senthia enjoys hiking, riding bikes, weight lifting, dancing, good food, live music, and quiet times at home.



Coach Aaron Petrus

Aaron Petrus joined Bell Fitness in 2020; he was born and raised in the U.S. Virgin Islands and moved to Arizona in 2003. Aaron served as a Sergeant in the United States Marine Corps for eight years and has been a certified fitness instructor for over seven years. Speed & Agility, Strength, Group, and High-Intensity training are passions of Aaron’s.

Aaron is a God-fearing man who enjoys traveling, the beach, and relaxing with his family.



Kelly Garrison

Kelly Garrison joined Bell Fitness in 2016 and is responsible for coordinating a broad range of services and resources that allow the organization to operate efficiently. Kelly is an experienced professional who brings more than 15 years of administrative skills to her role as Office Manager of Bell Fitness.

Kelly says Bell Fitness is such a unique organization because its team has worked together, shares a shared vision for excellence, and has never grown too big not to know each client personally. The number of satisfied clients, Kelly says, speaks volumes about the loyalty and trust Bell Fitness has earned since 2014.

Kelly has been a resident of Goodyear for the past 25 years. She enjoys a good Netflix binge but can also be found gardening and spending time with her friends and family.

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