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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 learned so much, most important it’s ok to put me first! The lessons on macronutrients were extremely insightful and once I started paying attention to your recommendations, I noticed a huge difference in my energy level. I also felt satisfied after most meals and my desire to snack has been greatly reduced! The lesson on sugar was a huge eye opener for me!
Jean F.
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.
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