The Y achieves its mission one person at a time. Our success is driven by the passion, enthusiasm, and dedication of our employees.

Johnathan Pope
  • Johnathan Pope
  • District Executive Director/David D. Hunting, Visser Family & Wolverine Worldwide Family YMCAs
Margaret Becker
Evan Przybysz
Dave Beugnot
Luke Bronkema
George Figures
Marla Poterack
Stacy Shotko
Heather Walczewski
Athena Williams
Charlie Williams


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Kara Mockler

Kara earned her Bachelor’s Degree in Dietetics from Michigan State University and completed her dietetic internship throughout West Michigan. As a
Registered Dietitian, Kara uses evidenced-based practice to help members reach their health and wellness goals including lowering cholesterol, managing diabetes, controlling weight, decreasing blood pressure, and planning nutritious meals. Kara’s goal is to help members improve their relationship with food and enjoy a healthy, balanced lifestyle. She has been a member at The Y nearly all her life and is excited to support members along their wellness journeys.

John Miedema

John is our Lead Personal Trainer and he is certified through the National Academy of Sports Medicine (NASM). He holds many specialty certifications including a Corrective Exercise Specialization (NASM). This allows him to help correct muscle imbalance in the body as well as teach proper movement of the joints in the body to help prevent injury. John has worked one on one with the diverse population of the YMCA since 2016 and teaches every small group that is offered such as TRX, Kettlebell, RIP training, and GRIT. If you’re interested in Personal Training or Small Group Training, you can meet with John for a FREE 30 minute, “Meet and Greet” by stopping in at the second floor Personal Training Studio.


Jasmine Ahuja

Jasmine is National Academy of Sports Medicine (NASM) certified personal trainer and NASM – Nutrition Specialization. Has completed her Bachelor of Science in Kinesiology and Health Promotions from Michigan State University. In December 2017, Jasmine has completed her Master of Health Administration (MHA) at Grand Valley State University. Jasmine serves as the Membership Committee Chair for Great Lakes American College of Healthcare Executives (GLACHE). She has experiences working with all ages and a wide range of abilities (functional, rehabilitative, strength, weight loss, etc.). Jasmine has been practicing since 2011 and is passionate about helping others who want to improve their lifestyle, like to sweat and have fun while achieving their fitness goals.

Brittany Bennett
Michelle Dawes

Michelle has a M.S. in Kinesiology from Texas A&M University. She has earned her personal training certification through the National Strength and Conditioning Association (NSCA). She has gained much of her fitness experience and knowledge through teaching group exercise, competing in triathlons, and as an anatomy & physiology instructor at GVSU. Michelle strongly believe in educating, motivating, and inspiring others towards better health and wellness through fitness and lifestyle changes.

Martha Ferguson

Martha will work with small groups, pairs, and one-on-one, providing motivation and encouragement, safe and effective techniques, helping you attain your goals and have fun! She is a seasoned Fitness Professional with 30 years of experience. As a NASM certified Personal Trainer, and ACE certified Group Fitness Instructor, her passion is to help beginners develop a fitness regimen, discover what really moves them, and create a plan of action, based on her client’s ability and desire. Martha can help you gain and attain: Energy, Function, Mobility, Strength, Endurance, Weight Loss, Agility, Power, Balance and Enjoyment! Martha especially likes helping beginners, baby boomers, and seniors, although she has a wealth of knowledge to help seasoned fitness enthusiasts as well.

Cheryl Floyd

Cheryl is a Registered Yoga Teacher at the 200 hour level (RYT-200) with the Yoga Alliance, has a Bachelor’s of Science in Physical Education, Recreation, Health and Dance, Masters in Management from Aquinas College, is TRX Suspension and Group Exercise certified. Cheryl has been teaching Yoga for over 9 years and has been a group fitness instructor for over 28 years. She is passionate in working with beginners, those on the road to recovery, and those with disabilities who may not otherwise attempt to practice yoga.

Ian Horak

Ian is a personal trainer at the YMCA of Greater Grand Rapids. He has a bachelor’s degree in Kinesiology from Michigan State University and is currently working on his doctorate of physical therapy at Grand Valley State University. He is an American College of Sports Medicine certified personal trainer. Ian believes in an individualized approach to training that enhances function by optimizing flexibility, endurance, strength, and stability. His goal is to educate clients about health and fitness to promote independence and improve quality of life.

Austin Jimenez

Austin is a personal trainer at the YMCA of Greater Grand Rapids. Austin holds a bachelor degree in exercise science from Grand Valley State University and is a NASM Certified Personal Trainer. Austin’s training goal is to help others achieve the best version of themselves physically and mentally.  His training methodologies vary from gaining strength, mobility, flexibility, increasing muscular density, weight loss, and core specific training.

Jenna Jordan

Jenna Michigan State University where she majored in Human Biology and received a second major in Psychology.  The human body and brain are fascinating to me and I love all things science.  This led Jenna to a career in Traumatic Brain Injury Rehabilitation which she started in 2012.  Fitness is an integral part of her life and she wants to show others what they are capable of.  Jenna is a certified personal trainer through The National Academy of Sports Medicine.  Jenna believes health and wellness is a process that each person has to work on every day.  Anyone is capable of making small changes each day to live a healthier life.  Jenna enjoys helping people find the small everyday changes they can make to reach their goals.   She always teaches and instructs a plan tailored to a person’s needs and goals based on scientific and medical evidence.  Jenna identifies these needs with her clients by providing them the tools and knowledge to guide them along the way.

Tiffany Karger

Tiffany graduated from Calvin College with a degree in Exercise Science. I have been training since 2017 and I am a certified personal trainer through the American Council of Exercise. I specialize in corrective exercise and weight loss.  I enjoy connecting with individuals of all ages and fitness levels. My main goal when working with clients is to provide them with the tools and support that they need to reach their fitness goals.

Alex Mellema

Alex is a personal trainer at the YMCA of Greater Grand Rapids. She has a bachelor’s degree in Kinesiology from Michigan State University. At MSU, Alex worked with the football team where she learned a comprehensive amount of information on strength training and sports conditioning. She is an ACE certified personal trainer, group exercise instructor, and is certified in TRX. Alex believes that the most rewarding part of working in fitness and wellness is helping people not only reach their goals, but exceed them. She enjoys working with all types of goals from running a 5k for the first time to working on sport specific skills. Assisting others to live a healthier lifestyle is what motivates her. She believes exercise should be fun, functional and individualized!

Jim Patch

Jim is a certified personal trainer through the Blue Heron Academy and the American Council on Exercise. Jim as a passion for running and has competed in it most of his life. He teaches the Running Club (advanced runners), Five K Continuum (intermediate), and the Couch to 5K running programs. His favorite workout is called a “three, two, one pick up running drill.”

Bret Putzig

Bret holds a bachelor’s degree in Exercise Science from Hope College and is a Certified Personal Trainer through the American College of Sports Medicine. His one training criteria is very simple: If there is no science behind it, he does not use it. He takes a very calculated and scientific approach to training himself and his clients by forming the most optimal workouts to reach each client’s specific goals. Bret helps his clients track calories, nutrients, weight loss, and strength gains. He knows that the science is very important to any training program but he also puts a big emphasize that all workouts are fun and engaging for everyone.

Dakota Wolter

Dakota is a graduate of Michigan State University holding his B.S. in Kinesiology. He is certified through the American College of Sports Medicine (ACSM) in personal training and exercise physiology. Dakota enjoys training clients with a wide range of goals from starting a new exercise program to breaking a plateau. He strives to create a motivating and challenging environment for his clients.