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STRENGTH AND CONDITIONING FOR ALL AGES
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SOS MAKES STRENGTH AND FITNESS FUN
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RESULTS-BASED GYM IN NORTH CHELMSFORD, MA
PROGRAMS
Move Better. Feel Better. Perform Better.
We are here to guide you every step of the way.
Do you want a free strategy session?
OUR MEMBERS LOVE SOS

Whether you’re just looking to stay active and healthy, or a serious athlete trying to beat the competition, the people at Skill of Strength have skills and knowledge to get you there.
Jonathan M.
This place is changing my life! I always stayed away from the gym because I didn’t feel I could be successful in training. In a matter of a few months, I am seeing results in my strength and conditioning because of the great team at SOS. All the trainers are super knowledgeable and engaged in the classes.
Kiley C.
I came to SOS after having a personal trainer for over a year, and I knew immediately that it was exactly where I belonged. I love the small community atmosphere and how much the trainers invest in their clients. They have a unique training model that really does build strength and endurance over time.
Kristin P.
My 17 year old twin sons have been going here for about a month and a half and are thrilled with their workouts! Steve their trainer is extremely knowledgable about all aspects of fitness. A great gym for a total body workout!
Laura O.
I started at SOS two months ago and I can’t say enough good things about it. I was instantly welcomed in to a wonderful community, the trainers are nothing short of amazing and the results you get from following the program are incredible. I am so happy I joined SOS!
Mike F.FROM THE BLOG

Ready to Rally: Strength & Conditioning for Pickleball Players 40+
April 23, 2025Pickleball has exploded in popularity, becoming a favorite pastime for people of all ages. Staying active and social is crucial to health as we age, and pickleball definitely provides an opportunity to do both! All players, and particularly those over 40, will benefit from strength and conditioning for pickleball to boost performance and help avoid … Read More

Not All Gym Shoes Are Created Equal—Here’s How to Choose the Right Pair
April 8, 2025Is your footwear holding you back in the gym? As trainers, we get this question all the time: “What shoes should I wear for working out?” And it’s a great question because the right footwear can make a difference (positive and negative) in how you move, lift, and perform. Lately, we’ve been seeing a lot … Read More

Should We Lift Overhead?
April 24, 2024Should we lift overhead? Tune in for an in-depth discussion on overhead mobility and our opinions on if we (and our clients) should lift overhead… and why. This episode is all about overhead lifting and we discuss topics such as: How neurology plays a role in posture Why posture is actually an adaptation The importance … Read More