A couple months ago I gathered a small number of people interested in trying a new small-group fitness class for adults in their 40s–60s who want to move and feel better.
We just wrapped up the 6-week beta, and it went really well, so the class is now becoming a regular weekly session. Kaizen Functional Fitness focuses on building strength, balance, and mobility in a gradual, adaptive, and supportive way. It’s especially good for people coming back from injury, dealing with aches and stiffness, or just wanting to stay strong and active. It is NOT a martial arts class.
Our current class meets Wednesdays at noon in Arlington Heights, and we have a few spots open. If you’d like to learn more or sign up, you can do that here:
https://www.kzkma.com/programs/functional-fitness
I’m also exploring additional days and times. If you’re interested but Wednesdays at noon don’t work, please fill out this quick form so I can see what schedules might make sense:
https://www.kzkma.com/functional-fitness-interest
Happy to answer questions. Feel free to message me or comment with questions.
Kaizen Karate & Martial Arts
We encourage families to train together. 
Kaizen welcomes students of all abilities + identities to study karate and self-defense thoughtfully and safely in customized classes in the Boston area - including Belmont, Arlington, Somerville, Cambridge.
01/10/2026
If you liked the last video about katana's, you'll be amazed at the artistry in this video on tsubas (the guards on katanas).
Adam Savage Marvels Over Centuries-Old Samurai Sword Tsuba! (at @metmuseum ) In case you aren't familiar, the tsuba is a sword guard that served both practical and symbolic purposes in Japan, and the level of craftspersonship is, in A...
01/09/2026
If you have any interest in Japanese katana, check out this amazing video of Ted Hunter from The Metropolitan Museum of Art, New York and Adam Savage.
Adam Savage Handles a REAL Samurai Sword! At the , Adam Savage gets to experience something he's always dreamed of: holding a REAL samurai sword. Conservator and armorer Ted Hunter takes us...
01/05/2026
We are very honored to host Sensei Tom Duffy for another workshop on Jan 25th in Arlington! Here's the link for more details and to register! https://kzkma.pushpress.com/landing/events/cal-a13f426af14d457c8faccf0b0a95/login
11/07/2025
Sensei Lilia being interviewed by Arlington Community Media: she’s the first person being interviewed at about 20 seconds in. Hopefully this will set you at the right time, but if not, she’s coming soon 🙂.
Arlington Town Day 2025 - Part 3 We can't do this without your support! Visit https://patreon.com/acmi00:00 Town Day Booths10:21 Mrs. Jones and a Thing Goin' On50:27 Town Day Booths1:01:53 T...
Sensei Lilia being interviewed by local television station, ACMI, during Arlington Town Day. 
09/30/2025
"Speak softly and carry a big stick; you will go far.” - Roosevelt
09/26/2025
Photos from Sensei Tom Duffy's self-defense workshop this past weekend. Lots of learning, lots of smiles.
09/22/2025
Thank you, Sensei Tom Duffy, for the incredible self-defense workshop today! We’re looking forward to posting more photos soon, but here’s the group shot after the event. Thank you to everyone who attended! It was truly a group of powerhouse practitioners.
09/19/2025
Kaizen is honored to host Sensei Duffy from 1-3 pm this Sunday! Learn throws, joint locks, and more…
09/19/2025
Sensei Tom Duffy is a legend; come join us on Sunday for an incredible self-defense workshop!
Click here to claim your Sponsored Listing.
Location
Category
Contact the business
Website
Address
169 Belmont Street
Belmont, MA
02478
Opening Hours
| Thursday | 6:30pm - 8:30pm |
| Sunday | 10am - 12:30pm |