Sign Up

Our Program

The state of Fitness has been Mid-Michigan’s leading personal training facility for over 13 years. SOF Owner, Justin Grinnell has over 20 years of Sports Performance Training experience and offers an innovative approach to training and building a solid athletic foundation while staying focused on each athlete’s individual goals. The SOF Sports Performance Academy program is based on consistent, continual coaching. Every workout is coached by one of our Certified Strength and Conditioning Specialists, along with another coach in our State of Fitness University program, from start to finish. Our unique instruction in movement training, injury reduction, speed training, foot speed and agility, power development, strength training, and proper science-based conditioning. The workout progresses and the basics are mastered. Our goal is not only to improve the performance of our athletes, but also to teach them the skills to be confident, safe, and stand out in any weight room they enter. Our highly-trained staff will ensure that proper progression and technique are coached at all times for each athlete’s individual fitness level.

Tell me more

The State of Fitness Sports Performance Academy is for anyone looking to improve their overall fitness and performance, reduce the risk of injury, and acquire the fundamentals of strength and conditioning. Anyone ages 11-18 is able to enroll in our SPA program. This program is for pre-season, in-season, and off-season athletes as well as non-athletes. If you are just looking to learn how to work out properly and improve your health and fitness, the SPA program is for you!

Training also includes nutritional guidance and regeneration techniques to improve recovery. Each athlete will also be educated on how decisions off the field, between games, and at practices can improve their overall performance. Athletes work in small groups of 4 or fewer with at least 2 coaches to ensure training is done correctly and efficiently.

Core Competencies


Owner and Head Trainer, Justin Grinnell, is the developer of the State of Fitness Sports Performance Academy program. Justin’s experience with young athletes runs deep with over 20 years of experience and 34,000 hours of coaching.

Justin is a Certified Strength and Conditioning Specialist through the National Strength and Conditioning Association. While attending Michigan State University as an Exercise Science and Kinesiology student, Justin had the opportunity to work with hundreds of Division I athletes as an intern in the strength and conditioning department.

Justin has worked with hundreds of athletes from the youth level to the professional and Olympic athletes. Justin has learned the best training methods for athletes from the best coaches around the world.

The State of Fitness SPA program has helped over 100 athletes advance from the high school level to the colligate level. College coaches that have worked with some of Justin’s former SPA athletes say that the SOF athletes come to college more prepared than any of their incoming freshmen each and every year.


If you are looking to learn the proper fundamentals of strength and conditioning, improve performance, reduce the risk of injury, and learn from world-class strength and conditioning coaches, this is the program for you! Click on the link below to sign-up today! We only have 12 spots so don’t wait. Still not sure if this is the program for you? Take a look at what some of our athletes have to say:

Justin Grinnell and the State of Fitness Sports Performance Academy has improved my tennis and training ability tremendously. I have seen huge improvements in my tennis and overall fitness over the past years training with him. Without State of Fitness and Justin Grinnell I would not be able to compete at the level I do and have the opportunity to go play college tennis. – Hannah

Justin and SOF have been so welcoming to my family and I. He’s taught me how to truly enjoy working out while being able to achieve my goals. I’ve grown so much in my fitness and tennis since working with him. Can’t thank him enough for being so accommodating to our hectic tournament and practice schedule. I have increased my power and strength to a high-level and have been able to achieve my goal to become a Division 1 athlete. – Ben

The SPA and training with Justin has had a huge impact on my athletic career. The strength training programs have led to me gaining strength, explosiveness and have kept me healthy. I recommend training with Justin and the SPA for any athlete looking to take their game to the next level. – Josh

Justin and SOF have played a crucial role in my development off the ice as a hockey player. From a young age, he helped me learn the correct and safe ways to train in order to gain a competitive advantage against my opponents. Justin has been influential on my hockey career and without his help and mentoring, I would not be where I am today. – Adam

Membership 1

$259 Month
Training 3x per Week
  • Includes 3X per week training sessions
  • Sessions are available Monday, Wednesday, and Friday – at 12 pm
  • Keyless entry access membership to the club
  • Nutritional guidance customized for young athletes

Sign Up
Membership 2

$219 Month
Training 2x per Week
  • Includes 2X per week training sessions
  • Sessions are available Monday, Wednesday, and Friday – at 12 pm
  • Keyless entry access membership to the club
  • Nutritional guidance customized for young athletes

Sign Up

Leave a Reply

Your email address will not be published. Required fields are marked *


This website uses cookies to ensure you get the best experience on our website.

Explore the free guides

Nutrition and fitness guides, cheatsheets, and meal plans to supercharge your success.

Explore the free guides to jumpstart your health and wellness journey.