Justin Grinnell is the owner and head trainer at State of Fitness in East Lansing, Michigan. Justin received his Bachelors of Science in Kinesiology from Michigan State University specializing in Exercise Science, Fitness Leadership, Athletic Administration, and Health Promotion in 2004. He is Certified Personal Trainer through The National Academy of Sports Medicine (NASM), and the International Sports Sciences Association (ISSA). He also holds a certification from The National Strength and Conditioning Association as a Certified Strength and Conditioning Specialist (CSCS), Level 1 Kettlebell Coach by Kettlebell Athletics and a Level 1 CrossFit Trainer. Justin is also working on receiving his Precision Nutrition Level I Coaching certification.
 
His experience for a young coach is extensive as he started training over eleven years ago, when he helped his brother sign with the New York Yankees organization in 2002. Since then he has accumulated over 23,000 hours of training and coaching experience.
 
In 2004 Justin started to work as an intern for Michigan State University Strength and conditioning department, where he gained exceptional knowledge and experience as he worked with Division I college athletes everyday. Justin specializes in working with all athletes ranging from the youth to the professional athlete. Injury prevention is his number one priority when it comes to strength and conditioning, especially because of such a high rise in injuries in high school athletics. Justin has worked with hundreds of high school athletes and teams, and has helped over 100 athletes advance to the college level.
 
Justin also specializes in lifestyle coaching, where he helps people change their lifestyle habits to lose fat and improve their quality of life.
 
Justin takes a preventative approach with his personal training members in clients. He focuses on improving movement, strength, conditioning and overall athletic development. His unique, yet simple approach to nutrition and supplementation is also where he excels. Intermittent Fasting, Paleo Diet nutrition and food based supplementation.
 
Justin Was born in Lansing, Michigan in 1981, where he grew up and attended school. Justin was a 3 sport athlete in high school where he played basketball, baseball, and football at Waverly High School in Lansing Michigan, where he was a part of the 2000 Class A State Championship basketball team which ended the season #20 in the country. He then continued his athletics while competing in powerlifting, and then transitioning into bodybuilding. He competed in 7 different shows from 2003 to 2006, where he placed in the top 5 in all shows but 2. Justin also competes in Crossfit competitions.
 
Justin lives with his wife, Katie, and sons Brennan and Beckett.