MDI 8 – Fitness Boot Camp Instructors



Michael Nichols (MDI Nichols) is the Senior Motivational Drill Instructor for MDI 8 Fitness. He served in the United States Marine Corps for 12 years (1995 – 2007), three years of that as a Drill Instructor and Senior Drill Instructor at MCRD San Diego. While serving as a Senior Drill Instructor, MDI Nichols’ platoon was featured in the award winning boot camp documentary “Ears, Open. Eyeballs, Click.” and “Black Friday – Dark Dawn”. MDI Nichols also served a tour of duty in Iraq, participating in 27 combat missions in 2006 – 2007.

With over 18 years of physical fitness experience, training, and education, both in the military and non-military, MDI Nichols holds six-physical fitness achievement certificates, is a certified personal trainer with the National Federation of Professional Trainers (NFPT), and has a Bachelor of Science in Business Management degree.

Train with MDI Nichols in the evenings at 4S Ranch San Diego, California.



Melanie Wilkerson has been involved with sports her entire life. Although basketball is her passion, she’s played a variety of sports from youth all the way up to the collegiate level. She’s taken on many leadership roles in the form of being captain and has been awarded numerous athletic and student-athlete awards.

After moving to California from Michigan, Melanie attended Palomar College in 2008-2010 where she played basketball and was captain of the back-to-back PCAC Conference Championship team. It’s there she received her Associates Degree in Behavioral and Social Sciences before transferring up to the University of Chico. At CSU Chico, Melanie continued to play sports while receiving her Bachelors in Psychology and minoring in Kinesiology and Sexual Diversity. Upon graduating from Chico in 2013, she realized she not only wanted to help people psychologically but also physically so she went on to become a certified personal trainer. Soon after she crossed paths with MDI8, she was hooked ever since.

“I love people and I love fitness. If I can bring the two things I love together, to help improve and change the lives of others…then I’m living the dream. MDI8 gives me the platform to do just that. From the incredible curriculum Michael Nichols put together, to my co-workers, and the clients that are all out there sweating and working hard together. It’s not only an incredible workout geared to help you achieve your fitness goals & challenge you to be the best you can be, but it’s an experience you can’t get anywhere else. Joining MDI8, you become part of the family. I love it and am proud to be a part of it.”

Melanie is a certified personal trainer through the National Academy of Sports Medicine (NASM), a sports coach, & First Aid CPR/ AED certified (American Heart Association).