Group Fitness Inst / Former Marine Sergeant :

I went into the Marine Corps right out of high school as an overweight football player and returned lean, fit and able to take on any challenge. The philosophy that was ingrained in me changed my outlook on fitness and being active. I started Corps Fitness with the philosophy of exposing people to the motivation and self realization I experienced in boot camp. I was pushed beyond what I thought was my limit and that redefined what I knew I could accomplish. In 1998 I was diagnosed with a degenerative nerve condition and as a result of my Marine Corps experience I only became more determined to make the best of my situation. My goal with Corps Fitness and the IM ABLE Foundation is to inspire others to look inside themselves to push forward despite their challenges. No Excuses…Just MOVE!

Training Experience
Former Marine Sergeant
While in boot camp, Chris learned several valuable lessons that would shape him as a young man and in the years to come, including one very special lesson from his drill instructor. During a group cadence run in boot camp, Chris’ drill instructor, Dave Hart, uttered five words that continue to echo in Chris’ head during his most difficult times: “Don’t quit on me, Kaag.”
Owner & Founder
Training Skills
  • Group Fitness Instruction 100 %

Meet Other Trainers

Joe came to an intro class in August of 2017 looking for something new to challenge him. After doing at home workout programs, running numerous trail races, 5K’s, 10K’s, and Half Marathons, culminating in the Vernon Spartan Beast, he knew after 2 weeks, that Corps Fitness would never be the same workout twice and would be the place that could take him to the next level of fitness. Being the manager of Corps Fitness CrossFit Berks means that I have to set that example and get in fantastic shape and stay there. I’m excited to be helping people crush their goals and then set new, higher, loftier goals – goals that they may not have ever thought they could possibly reach.
    Amanda came to one of the intro classes at Corps Fitness in October of 2016. After months of trying to achieve fitness goals on my own, she returned on June 10, 2017 for her first official Corps Fitness Class. Owner, Chris Kaag, made a bet with her and gave her until the end of June to attend a class. By July 4 that year, she was hooked. She started with the Corps Fitness program but soon developed a love for CrossFit as well. "I tell everyone that asks me about CFCFB that I would recommend this to anyone, no matter age or current physical ability. I was inspired by a current member that is in her 70’s. CFCFB is not a gym, it is a community of like-minded people that genuinely look out for each other." Currently Amanda attends the early morning classes, every morning. In August 2018, Amanda earned her Group Fitness Certificate and began teaching weekday classes in addition to the Open Gym on the weekends.
      Certification: NETA – Group Fitness Instructor; ASFA Kettlebell Instruction; ASFA Group Fitness Bootcamp Instruction Hobbies: All outdoor recreation including hiking, camping, snowboarding, canoeing. Cooking and EATING!!! Why I workout at CF: The Philosophies of accountability, teamwork, motivation, and adaptability strike the same cord as my ideas for living my life. Being a lifelong athlete is one of my goals and being surrounded by like minded people will not only help me achieve that goal but will also make me a better person in the end.