Fitness Staff

Mary Byrne
Health & Wellness Director

Mary has been employed by the James Family Prescott YMCA for 10 years. She is certified to Personal Train through ACE and certified in Group Instruction through the YMCA of the USA and AFFA. Making sure that the YMCA maintains a quality fitness staff to take care of members is a priority. Whether you are looking for a Personal Trainer or get involved in a Group Fitness class, you will find am impressive group of qualified individuals dedicated to helping our members. Mary still teaches the occasional class to stay in the mix, but now channels her lifelong enthusiasm for fitness into programming and management.

Charlie Brown
Personal Trainer

Charlie’s passion for the fitness lifestyle and his background in competitive cycling, swimming, running and triathlons makes him uniquely gifted as a trainer. Charlie relates to the challenges a client encounters while working towards their goals. As a AFAA certified trainer, he brings all his knowledge and understanding of these experiences to provide insight, and understanding to his client’s training needs from general fitness to specific sports goals.
Candi Dailey
Personal Trainer

Candi is Certified as a Personal Trainer, is a Specialist in Sports Performance Nutrition and also Certified in Group Fitness through both the ISSA and the YMCA . Her lifelong love of fitness and struggle with eating disorders has enabled her to better empathize with others fitness and health challenges. She has developed a passion to help others as they work to achieve their goals. Let her design a personalized and unique program for you by incorporating nutrition, core strengthening as well as functional training moves.
Nino Filippinetti
Personal Trainer

From Switzerland, Nino is an competitive mountain cyclist, and avid hiker and snow skier. Before becoming a Certified Personal Trainer and Pilates Instructor, Nino was diagnosed with arthritis of the spine. It is no wonder that his special expertise is core exercise. Nino enjoys working with people to help them achieve their unique goals.
Katie Darnick
Personal Trainer

Katie is a personal fitness trainer, certified through the National Academy of Sports Medicine (NASM). She is passionate about fitness, health, nutrition and overall well-being. Her positive and encouraging attitude inspires others. Katie trains as a competitive gymnast and is also a gymnastics coach.
Diane Kennedy
Personal Trainer

Diane is a Nationally Certified Personal Trainer and Group Fitness Instructor and has 25 years experience in fitness and wellness. She has experience and certifications in weight training, pilates/yoga, martial arts, tae kwon do (black belt) and nutrition. Diane's goals are to motivate, boost confidence and educate her clients to make healthier choices to live a happier and longer life. She will work with you to develop a fun and functional exercise/nutrition program that fits your needs, values and visions while helping you overcome any barriers you may have, so you can reach your wellness goals. Diane is currently teaching Pump Iron, Women on Weights (WOW), Tae Kwon Do and Youth Fit.
Hung Pham
Personal Trainer

Hung was born in Vientiane, Laos. He and his family immigrated to the US when he was young. He has resided in Prescott for more than 20 years and works in his full time position at a local restaurant as a Chef. Hung is a Certified Personal Trainer through American Council on Exercise, ACE. Fitness has always played a major role in his life through sports and outdoor activities. Hung enjoys the helping people young and old with their fitness goals. His motto, “you can do it and I can help.”
Denise Stevens
Personal Trainer

Denise is Certified as a Personal Fitness Trainer through the American Council on Exercise (ACE). She has maintained her certifications since 1994. She helps her clients reach their personal best, be it in health, fitness or appearance. With a background in bodybuilding and a thorough enjoyment of several physical activities, she understands the commitments and rewards when fitness is a part of life. She successfully works with her clients to design personalized programs that will work for them and keep them committed to their purpose.
Bob Zampol
Personal Trainer

Bob is a knowledgeable weight trainer who loves passing on this enthusiasm to others. He takes a diverse approach to fitness, balancing cardio, weight training and stretching as part of his daily workout program. Bob is a Certified Personal Trainer with National Academy of Sports Medicine (NASM). , Bob is a retired engineer from Southern California.
Erin Harris
Personal Trainer

Erin has been a fitness instructor for the Prescott Y since 2005. Through healthy eating and the help of a variety of fitness classes, Erin lost 45 pounds over 12 years ago. Through that experience, Erin formed a true love for exercise and living a healthy lifestyle. Erin specializes in working with older adults and is sympathetic to those living with reoccurring body pain and injuries. She will work alongside your physical therapist or physician to safely design an exercise program for each individual. Erin continues to teach senior fitness, weight training and boot camp classes here at the YMCA. Erin is a certified Personal Trainer through the American Council on Exercise, a YMCA certified fitness instructor and is also certified through Silver Sneakers. Erin will support you in your health anf fitness goals.

Chris Sieben

Personal Trainer

Chris has always been active. Currently he competes in mountain bike events and also enjoys backpacking, hiking, skiing, kayaking and other outdoor activities. He understands how important it is to feel good about yourself and can help you achieve your physical goals using a variety of cardio and resistance training techniques. He is an ACE certified Personal Trainer, with certifications in Functional Movement Sytems (FMS), YMCA Group Fitness, Schwinn Cycling instruction and an IMBA Mountain Bike certified guide that provides basic mountain bike instruction.