Vision Plus Fitness

Our Coaches

Charles Knowles

Founder and President, Vision Fitness

Founder and President, Vision Fitness Vision Fitness founder, Charles Knowles is a powerhouse personal trainer who specializes in one-on-one and group training to help clients realize their wellness goals. He takes his coaching to the next level with a holistic approach offering highly individualized training, as well as dietary and fitness coaching conducive to life outside of the gym. His knowledge, dedication, and proven results over the past 13 years have propelled him to be trusted by Philadelphia’s elite, including CEO’s, collegiate and professional athletes, such as 76ers own General Manager Elton Brand and his wife Seneca, and reality star Devin Duggan, for his motivation and fitness expertise. Charles strives to create a fun and upbeat environment where clients feel motivated to make their fitness goals come to life.
Through hard work, prayer and a promise to himself, Charles has dedicated his life to helping others through healthy living and wellness making their vision for fitness a reality.

Charles developed a passion and love for helping others through health and fitness following a family tragedy at a young age when he realized that due to poor health his family members never had the opportunity to see their visions become a reality. Charles also gives back to the community: He has spoken to kids at Schools about the importance of taking the tragic moments and turning them into positives.

Athlete/celebrity roster: His knowledge, dedication and proven results over the past 13 years have propelled him to be trusted by names such as, Michael Harris – CEO of Best Sports Consultants former agent of Kobe Bryant, Frank Knuckles – member of the Roots, Levi Brown, 76ers own General Manager Elton Brand and his wife Seneca, and former NFL player and reality star Devin Duggan.

Nicole Rodriguez

Chief Operating Officer
Nicole graduated from West Chester University of PA with a Bachelors of Science degree in economics and finance. Nicole’s job is to ensure Vision + Fitness is bringing the best customer service in the industry. She works closely with the CEO, Charles Knowles, to oversee and manage daily operations to meet established goals. She previously was the assistant varsity girls basketball coach for Souderton Area School District and was a pilates instructor at [Solidcore]. She now focuses her time on her full time job in supply chain, becoming a new mom and taking care of her 3 dogs.

Rachel Glass

Senior Coach | Head of Member Services
Rachel grew up here in Conshy where she was always playing a sport or involved in some sort of activity. Her biggest passions in life have always been health, fitness, volleyball, working with kids and taking care of others. Rachel attended Arcadia University where she earned a B.A in History in 2009 and her love for athletics led her to earn a Masters of Public Administration in Sport Management and Athletics at West Chester University in 2010.
Rachel also started coaching volleyball in 2007 where her love of playing the game turned into something bigger. Her coaches over the years inspired her to be someone her players could count on, trust and respect on and off the court. She has coached at the college, club and high school level. She has had some injuries and health issues over the years which have pushed her to learn and pursue a Personal Training CERT through ACE and NASM. Along with becoming a Certified Nutrition Coach (NASM), Rachel strives to be the best role model for those around her, to encourage them to always pursue their dreams and reach for their goals.

David Yontef

Head Coach | Manager

DAVID Y. was born and raised in Tucson, Arizona. He moved to PA to pursue a doctoral degree at Temple University studying Kinesiology. He graduated from the University of Arizona in 1997 with a bachelor’s degree in exercise physiology and has been certified as a personal trainer for 23 + years, training individual clients, small-groups, and classes bringing all his experience to Vision + Fitness to make for some memorable workouts.

David obtained a Master’s Degree from Argosy University of Phoenix, Arizona in 2003 in Sport and Exercise Psychology. He has worked with a very wide range of clients from children to seniors, professional athletes to rehab patients. David is currently certified and affiliated with; NSCA as a Certified Strength and Conditioning Specialist (CSCS), Spinning Instructor, USA Weightlifting, and Crossfit Level 1. He currently resides in Lafayette Hill with his wife Amy and two children, Jacob and Lainey.

Frank Jantes


FRANK is an experienced Personal Trainer who has been working in the fitness field for the last ten plus years. His experience working in a physical therapy office as well as several different training facilities has given him a broad range of knowledge that shines bright at Vision + Fitness.

One of Frank’s favorite things to do is design creative workout programs that keep people challenged and eager to push themselves to the next level. His “think outside the box” approach to fitness maintains people’s interest while making every workout fun and exciting. With high energy and a dedicated work ethic, Frank creates a wonderful environment for working towards fitness goals.

Angie Bound


Fitness and exercise have always been integral to Angie’s life. Her passion for movement began with cheerleading, dance, gymnastics, and running. With a diverse fitness background and extensive knowledge, Angie has accumulated teaching experience and certifications in spin, barre, HIIT/bootcamp, group training, and personal training. Angie’s boundless energy and creativity shine in every class she delivers, earning her the title of the ultimate hype woman. She is a staunch advocate of body positivity and self-love, firmly believing that everybody is a “gym” body. Before embarking on her journey as a fitness coach and instructor, Angie spent 11 years as an elementary school teacher in Philadelphia. In 2020, when the pandemic altered life as we knew it, Angie decided to rewrite her narrative. She retired from teaching to be home with her son, Colton, and to await the arrival of her second son, Gavin. Despite these significant changes, her commitment to fitness never wavered. With unwavering support from her husband, Ken, Angie immersed herself in running, discovered a love for barre, and dedicated herself to becoming a fitness coach. Today, Angie brings her extensive experience, passion, and enthusiasm to every class, inspiring others to embrace their fitness journeys with confidence and joy.

Collin Montgomery


Having grown up immersed in fitness and sports, my true passion has always been hockey. I was fortunate enough to play Junior Hockey after high school, which deepened my appreciation for athleticism and discipline. Following a rewarding career in hospitality, I discovered that my real calling was in fitness. This led me to attend the National Personal Training Institute, where I honed my skills and knowledge to help others achieve their fitness goals.

Working with a diverse range of clients, I find immense satisfaction in creating custom programs tailored to each individual’s needs and watching their progress as they achieve their goals. Additionally, I thrive on the energy and camaraderie of running fitness classes, where I strive to provide a positive, energetic, and informative environment.

As a proud member of the Vision Team, I am honored to contribute to our collective success and look forward to continuing to inspire and support our community in their fitness journeys.