PowerHouse Kickboxing and Fitness

We train at the American Martial Arts Center training facilities @ 36 Spinelli Pl, Cambridge, MA 02138, as well as clients’ location of choice.

By appointment only!

Please contact Konstantin at 617-510-0835 for more information or to schedule an appointment.


  • Great workout! They really push you to keep going hard! The location is great too! And the instructors are nice, friendly, and know what they're doing!

    Jacob S
  • I love the group classes, I lost 31 pounds going 3 times every week. I recommend to anyone that wants to be stress free.

  • This guy is legit!!!! Your partner in prevention,

  • Great coaches! , You really work out in those 50 mins of your time. Check it out

  • Kickboxing is the best workout! You get really fit while learning something and having lots of fun. Coach K is the best. He's not only a great coach and great motivator, he's just a wonderful guy too. I should know, I've been working out with him for over two years! The brand new location is beautifully equipped, with everything you need for working out and kickboxing. I recommend it wholeheartedly! Don't hesitate, give it a try, you'll be really glad you did!

  • There are no words to describe just how much both coach K and the gym has changed my life for the better. K has been privately training me for almost a year, and it is an understatement when I say that he is incredibly passionate, patient, and so much fun to work with. As someone who has struggled with mental illnesses, both K and kickboxing were, and still are vital components in what has helped me to continue working towards becoming a better and (both physically and mentally) healthier person. Highly recommend!

  • My daughter and my niece walked in to use the gym and they loved it. Konstantin was coaching them and they had an intensive kickboxing workout. Excellent place.

  • My trainer and I get along so well and it puts a smile on my face when I see younger children's classes come in with such enthusiasm! I'm so glad it's near my apartment and they're so flexible with scheduling private sessions. I actually get motivated to go to the gym, now ?

  • I trained for an hour with owner Constantin. I have been training in boxing for the past three years so I'm rusty in kickboxing. His style of fighting, which is his invention merging boxing, Kung Fu and Tae Kwon Do, is extremely effective. We did "touch" sparring so that I could see what Bokatai was like but then he helped me on techniques for boxing an opponent who is just throwing a non-stop barrage of jabs and crosses. I thought his style is extremely effective and I want to learn and practice more the boxing applications of Bokatai.

    MIA W Auburndale, MA
  • There is a reason that I've been training with K since 2008. He knows what he's talking about, and he knows how to push me out of my comfort zone. I credit a good portion of my good health to everything that K has helped me achieve, and he knows how to meet people where they are with their goals. I really strive to be a great fighter, but I've seen K work with people that have different goals. He's very understanding. Yesterday I had my first private lesson at the new location in Watertown, and I was blown away. I knew K was going to make a great gym, but everything in there is very high end. Additionally, my longtime colleague Peter is working there, and he is great with kids and martial arts in general. No matter what you are trying to achieve with fitness, stop by and talk to the folks at Powerhouse.

    KEVIN JUSTIN T North Andover, MA