Personal Training

Personal Trainers

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Kristin Donovan

Kristin received a bachelor’s degree in physical education in 2008 from Hillsdale College in Michigan and a Master’s degree in Kinesiology with a concentration in adapted sports in 2018 from A.T. Still University.

Over the past 10 years, she has worked with a wide range of clientele including professional athletes.  Since 2012, she has specialized in adaptive exercise for people spinal cord injury, brain injury, multiple sclerosis, and other conditions.  She is a Certified Strength and Conditioning Specialist through NSCA and a Performance Enhancement Specialist through NASM.  Kristin is also attending Midwestern University’s School of Occupational Therapy.  In the future, as an occupational therapist, she hopes to promote fitness as a means of helping people become more independent, and to help make the fitness industry more inclusive of people with disabilities.

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Luke Rumbyrt

Luke received his B.S. in Exercise Science from Grand Canyon University in 2018 and is a NASM certified personal trainer. For the past four years, Luke has worked with a variety of individuals in several unique environments. In just a short time period he has helped train high school athletes, elderly men and women, Division 1 athletes, MLB/NFL players, and recently has worked with amputees and spinal cord injuries. Luke loves teaching and showing people the body’s true capabilities and potential through exercise. He is a strong believer in making exercise fun and building a customized program for each client. From working in several different environments he recognizes that everybody is extremely unique and requires a specialized approach when it comes to training. Not only has he worked in the gym setting, but he has also spent a lot of time in Physical Therapy clinics, and understands the importance of corrective exercise and proper technique. One of Luke’s favorite quotes he lives by and applies to his coaching style is “Everybody is a Somebody.”

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Ilyse Stern

Ilyse Stern is an NASM certified personal trainer. Ilyse is currently continuing her training education by studying the NASM corrective specialty. Ilyse has been involved with many populations including coaching Special Olympics and has a great passion for helping others. She is also an experienced dog trainer. Ilyse has trained many dogs for various service organizations throughout the United States. She even has two service dogs of her own that assist her with her daily life. Ilyse has been running a transportation company for many years, and is very excited to work with the many different populations that visit Ability 360.

She is also passionate about empowering people by rebuilding a sense of balance, combined with strength and independence. Ilyse will definitely strive to provide safe, professional guidance to ensure people reach their goals and beyond.

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Emily Bailey

Emily received her Bachelor of Science degree in Kinesiology from Arizona State University in 2022 and plans to continue her education to earn a master’s degree in Prosthetics-Orthotics. As a former exercise-science intern for Ability360, she grew a passion for assisting others in the weight room. During her undergraduate, Emily helped run and was a trainer for an adaptive training program at ASU, all while advocating for accessibility and inclusivity on campus. These experiences led to her pursuing and obtaining her NASM personal training certification.

Emily’s passion for health and wellness stems from her drive to help others. She wants to help people reach their goals, whether fitness related or not. Overall, Emily is focused in helping people become their best self.

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Ivan Pizarro

Ivan is a NASM Certified Personal Trainer and obtained his Bachelor’s degree in Exercise Science from SUNY Cortland in NY. His passion for fitness started with wanting to improve sports performance in track and field in High School. Lifting weights was an outlet for him to relieve stress. He began personal training with the intent to help people. For the past 2-3 years , he has primarily focused in working with the general population. After receiving his degree from SUNY Cortland, he pursued an internship in California for two months to further increase his knowledge. This experience gave him the opportunity to learn topics such as advanced workout programming, human anatomy and sports nutrition all while being able to train clients and receive constructive feedback from instructors. Living with a spinal cord injury, he has realized just how imperative exercise can be for people with disabilities and how it can increase skills such as self-efficacy and independence. Ivan wants to help people experience the benefits of exercise and how it can be a great asset to improving their quality of life with the intent of helping them reach their fitness goals.

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Joe Underwood

Joe is a NASM certified personal trainer who also has a Bachelor’s degree in psychology from the University of Missouri as well as a Master’s degree in sport psychology from Florida State University. He values the importance of the mental side of performance just as much as the physical side, and is passionate about creating a motivational and fun workout environment for his clients.

Joe is a former swimmer and wheelchair basketball player. Some of his accomplishments include representing the US National Team in both sports as well as playing wheelchair basketball on scholarship at the University of Missouri. He attributes a lot of his success in sports to the amazing trainers he had over the years who were patient and took the time to get to know him, as well his ability level, in order to create the most effective training programs. He is excited to work with his clients to help them achieve the same success he had through personalized and adaptive training.

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Shayleigh Mountford

Shayleigh (Shay) is a determined, passionate, and caring individual, who is always ready for a laugh! She was a competitive dancer until the age of 13, played soccer in Junior High, and cheered in high school. Shay was born and raised in Puyallup, WA and graduated from the University of Washington (Go Dawgs!) with a Bachelor’s in Healthcare Administration. She’s a NASM certified personal trainer and nutrition coach, and is always looking forward to the next learning opportunity.

Shay found a new home in Phoenix in 2019, and found so much joy in the desert scenery and adventure! She strives to have a well-balanced life full of movement and healthy habits, and is eager to encourage others to do the same. Shay will provide fun and effective workouts, all with an uplifting attitude and smile!

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Stephanie Lovinger

Stephanie is an experienced special educator and adaptive physical education teacher. She earned her bachelor’s degree in special education at Arizona State University and a Master’s Degree from Northern Arizona University. During Stephanie’s teaching career she was an advocate to ensure all students have accessible physical education programming. This came from her 18 plus years in self-contained classrooms where students would have progressed further given proper access to physical education.

With this passion Stephanie found that as an ISSA Certified personal trainer she could focus on helping individuals reach their health and fitness goals. She is enrolled at Grand Canyon University, working on a Doctor of Philosophy in Performance Psychology degree. During her own fitness journey, Stephanie embraced her own physical limitations, from learning how to walk again to now an avid hiker.

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Cole Steffen

Cole has been a NSCA certified personal trainer since 2016, he is also an ACE certified group fitness instructor, NASM certified corrective exercise specialist, and an ACE certified weight management specialist. He is from Illinois and graduated from Northern Illinois University with a Bachelor of Science degree in health sciences. He has a Master of Science degree in exercise science from Concordia University Chicago and is currently pursuing his Ph.D. in exercise and sport sciences from Liberty University.

Cole has the heart of a teacher and a passion for providing creative, engaging, and functional exercise routines. He provides a positive environment and enjoys seeing clients obtain their goals. Outside of the gym, he enjoys exercising, hiking, and learning more about health and fitness. He also teaches health and exercise science classes in academia in the Phoenix area.

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Jena Yates

Jena is a personalized fitness trainer certified by the American Council on Exercise (ACE). Jena has also been in practice as a Licensed Massage Therapist for nearly 20 years and has a strong interest in nutrition and in helping others to make healthy lifestyle choices. She believes that emphasizing our strengths empowers us to have positive growth toward our endless potential. Currently, while away from the gym, Jena teaches group fitness classes for wheelchair users and works with a wide variety of clients to create fun and challenging sessions that are tailored to their unique circumstances. Jena and her daughter have been members of Ability360 for the last seven years and absolutely love that it enables them to participate in fitness related activities and classes together.

When she isn’t working, Jena loves spending time with her husband, their daughter and their dogs. Otherwise, you can find her drinking chai lattes and reading about nutrition and fitness, going for a run, bike ride, or hike, or cooking/baking something healthy and delicious!

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Jen Becker

Jen is a Certified Personal Trainer through the National Academy of Sports Medicine. Though new to the area, she has traveled and lived in several states, including Colorado, California, New Orleans and Michigan, allowing her the experience of working with a variety of populations. After attending Commercial Dive School in 2018, she became a nationally recognized EMT and completed training in Dive Medicine Technology. Prior to Personal Training, Jen worked clinically as a Certified Hyperbaric Technologist, traveling and working at 3 different multi place chambers in the US.

With her experience in healthcare, child care and expansive background of sports and fitness, Jen brings a passion for health and safety and creating a sustainable lifestyle. In addition, she has a great passion to continue to expand her knowledge and experience to be able to provide the best care and training for every person she has the opportunity to work with.

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