About us

Please excuse our appearance and incomplete pages, we are moving from our old PowerHouse Kickboxing website to this one, consolidating and reworking the content. Thank you for your patience. 108STRONG Team <3 

Our system is based on 1 on 1 and small group coaching, so each that session is customized to each client’s individual needs, abilities, and goals.

Most common results of following our system are: weight loss, improved strength and muscle tone, improved coordination, balance, agility, stronger immune system, stress relief, and improvement in your overall health.

Each session may include a combination of the following services:

  • Weight Training
  • Strength and Endurance Training
  • Boxing/Kickboxing/Martial Arts
  • Self Defence
  • Stretching
  • Balance Work
  • Breathing Exercises
  • Cold Training and other Immunity Boosting Exercises (reduction in inflammation, stress reduction, boosting the immune system)
  • Nutrition Advise (a huge part of our program and is always discussed in every session)


I can’t say enough good things about the Konstantin.  I just had my first work out with Konstantin and I was extremely impressed. In just one lesson I feel I learned so much.  Coach K as they call him has trained professional athletes in the past and I really felt fortunate to have the opportunity to work with him. He is patient and knowledgeable and brings out everything you have. You not only get a great workout but you also learn the important steps in self-defense.
Tim R. Watertown, MA