Zach Guza
Founder
I started Black Dog Fitness so that no one else has to go through what I went through with mental illness and what dad went through with Parkinson’s disease.
I struggled with undiagnosed Depression for years. I just thought that life was supposed to be terrible. I finally realized what was wrong when I saw a video called “I have a black dog and his name is depression.” It stopped me dead in my tracks. That was me. I have a black dog.
I have Depression.
When I finally got professional help, one of the first things my psychiatrist told me was, before she would even consider medication, I had to get back to exercising. Today, regular exercise is a non-negotiable part of my life and is essential for balancing the demands of being a husband, a father, a business owner, and someone who suffers from depression.
So, why Parkinson’s disease?
My dad had Parkinson’s Disease but he was never told that exercise would help him live longer, happier and healthier. His doctors either didn’t know or appreciate the power of exercise. Because of that he suffered a terrible, steady decline until his death in 2013.
Hundreds of studies have shown that exercise can slow, stop, and even reverse the symptoms and progression of Parkinson’s Disease. I wish that my dad would have had a place like Black Dog Fitness.
I started Black Dog Fitness and Rock Steady Boxing Knoxville so that no one else has to go through what my dad did.
ZACH’S CREDENTIALS
- Bachelor’s of Science – Human Factors Engineering
- United States Air Force Academy
- Air Force Officer & Helicopter Pilot
- UH-1N Evaluator Pilot
- Certified Personal Trainer – WITS Education
- Functional Aging Specialist – FAI
- Rock Steady Boxing Coach
- Certified Health Coach
- PWR! Moves Instructor
- Urban Poling Instructor
- Rock Steady Boxing Coach of the Year, 2024
Our Instructors
All of our Instructors “organically” found their way to Black Dog Fitness. All of us have come to Black Dog Fitness to make a difference with a creative and positive environment that encourages functional health and community for people who are otherwise left out of fitness.
Sarah Lamont
Spin and Stretch, Personal Training, Rock Steady Boxing Assistant Coach and Yoga
Sarah is a Certified Personal Trainer, Certified Yoga Instructor and Certified Spin Instructor. She currently teaches Spin and Stretch and Yoga. She also does personal and small group training.
Perle Sorah
Rock Steady Boxing Coach
Perle has worked his way all the way through the Rock Steady Program. He was diagnosed with Parkinson’s Disease in May 2013, after exhibiting symptoms for many years. He retired from his job after 45 years as a Radiologist Technologist on Friday and started boxing the following Monday.
After about eight months as a fighter, Perle began volunteering in the stage three and four fighters. Interested in still doing more, got Certified as a Rock Steady Boxing Coach in January 2018 and has been Zach’s “co-coach” since.
Perle is certified as an instructor for Nordic Walking from the American Nordic Walking Association and Nordixx Pole Walking of Canada. He teaches group classes and individuals with and without Parkinson’ Disease.
In his “spare time”, Perle and his wife camp, kayak and hike. Perle is an exceptional woodworker and has built everything from small wooden bowls to major pieces of furniture.
His philosophy for life is, “Keep moving or you just might die.”
Jimmy Dabney
MS – Sports Psychology, CPT, CSCS, Rock Steady Boxing Coach
I am a former D1 NCAA All-American swimmer at the University of Tennessee and competed on the USA National level. I graduated with a M.S. in Sport Psychology and Motor Behavior. As a professional swim coach for over 10 years, I spent time coaching at the USA Olympic Training Center in Colorado Springs and was included on the USA Swimming National Team Coaches List.
As a fitness professional, I have a passion for helping people become strong, confident, and happy in their daily lives. After becoming NASM and CSCS certified for personal training, I have been able to sharpen the skills within my craft. In addition to private 1-1 training, I have worked as a strength coach for high school as well as professional athletes on both the USA National Team and the USA Olympic Team.
I am a family man with a beautiful wife and daughter living in Knoxville, TN. I enjoy walking our two dogs, working out, hiking, surfing, swimming, biking, running, and throwing the frisbee.
Taylor Morgan
Physical Therapist
Taylor is our in-house Physical Therapist specializing in Parkinson’s disease. She came to us after several years in the “mass production” physical therapy world. She works with MovementX Physical Therapy to see patients at Black Dog Fitness.
Taylor’s whole-body and whole-mind approach to physical therapy fits in perfectly with what we do. She is a dedicated and compassionate physical therapist with a profound passion for treating patients with Parkinson’s disease. Taylor is an exceptional Physical Therapist. Many of our staff and their families see her for treatment. Click here to schedule a free 15 minute consultation.
Taylor has become a valuable part of the BDF team. We can stop in for a quick “what-do-you-think” or set up a full cooperative plan between Taylor and your trainer. This helps us target troublesome areas and work on them from a training and therapy perspective. We have had great results from this kind of team work. Together, we work with the whole team (patient included) to set achievable goals so patients can take control of their health and well-being. Patients heal faster and stronger.
In her free time, she loves hiking trails, caring for her cherished houseplants, spending quality time with friends and family, and embarking on adventures with her sweet pup, Ellie.
THE BLACK DOG
In October of 2012, the World Health Organization made video called “I had a black dog, his name was depression.” It is a video version of the 2005 book I Had a Black Dog by Matthew Johnstone.
The instant I saw this video, I realized that my pain had a name, it wasn’t my fault, and it could be treated.
Please contact me if you are struggling with depression. Your life doesn’t have to be bad.

