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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

The best of the best. Without a doubt! Mike is the best at what he does! A true professional.
Juliana C.
I love it here, great people, great workouts and great support from the friendly and engaging staff. I highly recommend SOS. I have had a few ongoing minor health issues and the staff is more than accommodating me with modifying the exercises so I can do the workout. Sometimes I feel like I have my own personal trainer.
Julie L.
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.
Great people, great place, great results!! Can’t say enough about the gym and the staff. I highly recommend it to anyone!
Tyson C.FROM THE BLOG

Why Tracking Your Workouts Matters More Than You Think
June 10, 2025Over the past year, we made some intentional changes at Skill of Strength to improve the way we support our members. This included updating training templates for our personal training and SUCCEED Members, refining tracking sheets for our MOVE group training sessions, and tightening up performance tracking for our COMPETE and PERFORM athlete groups. These … Read More

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