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Welcome to Sigma Martial Arts - Greater Boston’s Premier Martial Arts Community

At Sigma Martial Arts, we believe in building a strong community where every student feels like part of the family. Join our inclusive, supportive environment where both children and adults can thrive. Whether you're looking to build your child's confidence or find a new fitness challenge for yourself, we offer expert instruction that emphasizes personal growth, discipline, and success.

Children’s Programs

Discover the perfect blend of fun and learning in our junior martial arts programs, where our classes are designed to instill confidence and discipline from an early age. Our instructors lead by example - they have decades of experience teaching children and are experts in creating a safe, supportive, and engaging environment. Martial arts is the vehicle for developing good character, and our programs not only foster physical skills but also nurture those essential life skills, too. Our goal is to make our children the next generation of good citizens, and we know you will see the difference in your child both on and off the mat.

Adult Programs

Elevate your fitness journey with our adult fitness and martial arts programs, where we blend the best of traditional and contemporary martial arts. Our expert instructors guide you through a well thought out and comprehensive curriculum. Whether you're a novice or seasoned practitioner, our adult programs offer a supportive community to enhance your physical prowess, mental resilience, and overall well-being. Unleash your potential at Sigma and experience the transformative power of martial arts tailored for adults of all skill levels.

Why Choose Sigma Martial Arts & Fitness?

  • Expert Instructors: Our highly skilled instructors are dedicated to helping you achieve your goals. Meet our team of professionals who bring years of experience and passion to every class.

  • Fitness and Health: Improve your fitness, flexibility, and mental well-being with classes designed to challenge and inspire you.

  • Safe, Structured Environment: Parents trust us to provide a safe space where children learn valuable life skills while having fun.

Discover the Benefits of Martial Arts for every stage of life. From stress relief and fitness to self-defense and confidence building, Sigma Martial Arts & Fitness offers a comprehensive program tailored to your needs.

What People Are Saying

  • Amazing coach, clean facility, nice and fun learning environment. Basically the best Muay Thai practice I ever had! Strongly recommended!!!!!

    Kaofang N.

  • Very clean, spacious, and a great selection of gear to use.

    Joshua C.

  • Was extremely impressed with how clean the dojo was! The Judo Instructor Sesei Mo was very friendly welcoming and knowledgeable. Cant wait to go back.

    Tony D.

  • I've been going here for almost a whole year, and I absolutely love the place. It's welcoming, fun, clean, and a great workout! The instructors are friendly and kind, they offer a lot of different classes, and it's great for both kids and adults. To me, it's a perfect middle ground between the extremes of super hardcore bro gyms that focus only on competition, and flakey programs that give you exercise but no real martial arts training.

    Alison E.


  • This place is the best! They have a balanced mix of traditional and practical martial arts training. Their classes are always fun, informative and a great workout!

    Mickey T.

  • Impressive place. Clean, organized and professional. The instructors are seasoned professionals and everything is at your own pace. All skills levels. Everyone just super nice and supportive. And awesome workout!

    William B.

  • This is an awesome martial arts studio. The owner runs a clean operation, and the instruction is top notch. The dojo is well appointed with safety padding on floors and pillars, and has floor to ceiling mirrors to check your form during classes. I hope all aspiring martial arts students and aficionados alike take note of this hidden gem!

    Vambah S.

  • New List ItemI started out doing adult martial arts, but liked the school and the style so much I have now also taken up Muay Thai. Both classes are a lot of fun. I am learning something new every time, and I’ve become much stronger (no more back pain, hurray!). For the quality of instruction, number of opportunities to train throughout the week and individual attention you get it’s really very good value for money. I cannot recommend this place enough!

    Lauren D.

  • This is a great place to learn karate for children the instructors have a lot a patience and they are also very professional and still make It fun for kids.

    Ana Maria L.

  • This is a great addition to Medford. The studio is clean and the instructors are phenomenal. There's a great sense of community and the atmosphere is welcoming for anyone who is new or has experience in martial arts, kickboxing, or mauy thai. Since joining the studio, I have been recommending it to my friends since I'm always learning so much here and growing my skills in martial arts.em

    Kristina B.

  • As a new student to martial arts I really appreciate their attention to detail, stories about their previous experiences and of course getting in a good workout! I have had nothing but a great experience and look forward to many more classes. If you are considering starting martial arts or just want a good workout in a positive setting, I highly recommend Sigma.

    Jessica R.

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@SigmaMartialArtsFitness

 
View fullsize 🚨SPECIAL EVENT!!!🚨 Make sure you scan the QR code and reserve your spot today for our Parents Day Out! (24 LEFT!!) 3 hours of supervised fun for your children and their friends! Ages 5 - 12! Movie🍿 Pizza🍕 Games🎮 - - - - - - - - #childrensmartia
View fullsize Have an amazing Friday!!!!
View fullsize Did you know?….. At Sigma Martial Arts we believe in building a strong community! Here every student feels like a part of the family! Join our inclusive and supportive environment where children can build confidence, and adults can find new
View fullsize There aren't enough words to show our gratitude!
View fullsize What a mantra to have! Enjoy your Friday!!! - - - - - #fun #Friday #FunFriday #medfordma #MartialArts #Kickboxing #muaythaifighter #sigmamartialarts #FreeTrial #MuayThai #SigmaFitness
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Try a Free Class Today!

Ready to experience the benefits firsthand? Sign up now for a free trial class and take the first step toward becoming part of our thriving community.

Optimize Your Experience

  • Easy Sign-Up: Register for your free class quickly with our streamlined sign-up form.

  • Mobile Friendly: Our website is fully optimized for mobile devices, ensuring you can access information and register from anywhere.

Join Us at Sigma Martial Arts and see why we're the top choice for families in Medford, MA, and the greater Boston area. Your journey to confidence and community starts here!