About FIT
THIS
IS
FIT.
Functional Intense Training in Defiance, Ohio. Full-body, coached workouts for every age and fitness level.
What We Do
HIIT MEETS
STRENGTH.
FIT is a dynamic fusion of High-Intensity Interval Training (HIIT) and strength training, designed to develop the hips and core that power everything you do.
By building multi-planar movement into functional training, FIT develops strength that carries over to real life. Muscles learn to work together efficiently, so members become stronger and more capable in their daily tasks and in their sports.
Every session is a fast-paced 45 to 60 minutes in a small group, so coaches can give personal attention while the group keeps the energy high. Workouts are scaled to each person and rotate between total-body strength and conditioning, power and plyometrics, core and stability, cardio intervals, and focused mind-muscle work.
FUNCTIONAL
Real-life movement in real-life positions. Exercises train your muscles to work together for the things you do at home, at work, and in sports.
INTENSE
Short, hard intervals that keep your heart rate up and your metabolism working long after you leave, scaled to where you are today.
TRAINING
Coached small-group sessions, multiple times a day, built to keep you progressing week after week.
Ages 7 to 88
YOU DON'T HAVE
TO ARRIVE FIT.
Our programs are built for all fitness levels. Coaches modify every exercise to match your current ability and raise the intensity as you progress. Many of our most successful members started as complete beginners.



Ages 7 to Professional
ATHLETIC
ENHANCEMENT.

For athletes from young beginners to professional competitors, FIT focuses on hip and core recruitment, stability, and overall movement quality. Youth athletes build coordination, balance, and proper technique with bodyweight exercises and light resistance, while advanced athletes develop speed, power, and vertical jump.
Meet Your Trainer
SETH
BUHRER.
With over a decade of experience in functional fitness and strength training, Seth brings expertise, passion, and dedication to every session at FIT. His approach combines traditional strength training with modern functional movement patterns.
As FIT's founder, Seth developed a training method focused on real-world strength and conditioning. His background in competitive athletics and study of human movement shaped a philosophy of training that delivers results while preventing injury.
Whether you're an experienced athlete or just starting out, Seth's personal approach gives you the guidance and support to reach your full potential.
Real Results
REAL PEOPLE.

Wesley
A sophomore cross-country runner at Tinora, Wesley trained at FIT twice a week and cut nearly two minutes off his time, finishing in 17:53 and contributing to his team’s state championship run.
Ben
Ben joined FIT in April 2024. In 15 weeks he went from a 36-inch waist to 32 inches and gained 20 pounds of muscle.
Colette
Colette needed to lose 100 pounds to qualify for the U.S. Army. With FIT as part of her routine she lost the weight, gained confidence, and is now ready to serve.
Your Questions, Answered
FAQ.
Looking for how booking, the waitlist, or weekly bookings work? See the full member guide.
What is functional training?
What is HIIT, and why is it effective?
Do I need to be in great shape to join?
What ages do you train?
Can I pay for individual classes?
How do I sign up for classes?
What if I need to cancel?
Can my family share sessions?
What is the 3D Precision Body Scan?
Visit FIT
220 Clinton St
Defiance, OH 43512
(419) 438-6191 · seth.fit@gmx.com
Every member gets free 3D Precision Body Scans, which track body measurements, body fat, and muscle mass so you can see real progress over time, and new members get a free consultation with Seth. Call to schedule either.
Ready To Train?