SLS Fitness 65+ Years Old Program SLS launched a new pilot program in 2015 with several participants ranging in ages from 67-90 with various health challenges.  The classes focused on strength, balance and agility.  The participants were amazed by their physical improvements, how great they felt and how much they enjoyed socializing with each other!  Read more…


SLS Advanced Circuit Training is a strength and conditioning class. The class uses circuit exercises timed as stations which may include:  flipping tires, climbing ropes, sprinting suicides, advanced TRX exercises, punching the heavy bag, jumping on plyo boxes, running stairs, battling ropes and much more!  This class is great for strength and conditioning for sports or just the Read more…


– Offered: Lowell ONLY Our Aerial Silk Classes are designed to help our members with flexibility, upper body and core strength, body awareness, and relaxation!  Can’t make it to a yoga class?  These half hour classes provide a phenomenal stretch and release for your body. We would love our members to add this into their Read more…


The barre workout will challenge you in an new and innovative way. Built on the methods of professional dancers, this workout is safe while pushing your body to new levels. It focuses on tapering and creating long, lean muscles, lifted gluts, a strong core and improves strength and flexibility. This class will provide you with Read more…


– Offered: Lowell ONLY Beginner New to Boxing Class!  Learn basic boxing form and technique, how to hit the bags, wrap up and more!


– Offered: Lowell ONLY Strength and conditioning class that uses circuit exercises timed as stations. Stations can include: TRX, cardiovascular, strength and agility exercises. The participant is shown various ways to do the exercise to tailor it to their fitness level. This class is great for strength and conditioning for beginner fitness enthusiasts.


 – Offered: Lowell ONLY Our Core Conditioning classes are designed to strengthen the core muscles from your pelvis to your lower back, to your hips and of course your abdomen!   Strong core muscles are the root of it all. By strengthening these muscles it can make it easier to do every day movements from picking up your child, to swinging Read more…


– Offered: Lowell Beginner Metabolic Effect is a much slower version of our advanced-level classes. Your instructor will take the time to break down each functional movement, explaining form, alignment, and proper pace. ME training is a unique type of exercise utilizing multiple joint movements and full body exercisies to create a “ripple effect” on Read more…


– Offered: Lowell The beginner version of our weight room and strength training classes provide a very slow and guided class that focuses on large muscle groups. This class provides a full body workout by using anywhere from 6 – 8 stations. You trainer will walk you through each exercise, and then, spot and correct Read more…


– Offered: Lowell ONLY Beginner TRX gives many modifications, a slower pace, and beginner level exercises. What is TRX Suspension Training? TRX Training is a revolutionary method of leveraged body weight exercise. Safely perform hundreds of exercises that build power, strength, flexibility, balance, mobility, and prevent injuries, all at the intensity you choose. Suspension Training Read more…


Boxing Bag is a workout that combines strength, power, speed, agility and quickness. You will learn how to hold your hands, correct stance, and how to correct foot work. This is an anaerobic and aerobic based workout.


SLS has partnered with Dr. Doug Maguire of Fairway Chiropractic Clinic in Tewksbury, Ma. He comes in every Saturday from 8:00am – 10:30am and takes walk-in clients on a first come first serve basis. Dr. Doug has been a great partner for SLS with his view of Holistic medicine and fitness. For more information on Read more…


Beginner Core classes also available! Our Core Conditioning classes are designed to strengthen the core muscles from your pelvis to your lower back, to your hips and of course your abdomen!   Strong core muscles are the root of it all. By strengthening these muscles it can make it easier to do every day movements from picking up your child, Read more…


The Functional Movement Screening (FMS) is a series of tests of basic movement patterns that identify weaknesses and asymmetries in the body. The results provide us with the information and insight to customize workouts to correct the athlete for enhanced performance. It’s been shown to reduce both risk factors for injuries and costs associated with Read more…


SLS Fitness has two Infrared Sauna’s! Each located in Men and Woman’s locker room!   As a member – Try your first session free today! Why Infrared Sauna?  Achieving Good Health Heavy Metal Poisoning (including mercury) Multiple Chemical Sensitivities Brain Fog Fibromyalgia Chronic Fatigue Rheumatoid Arthritis Anxiety and Depression Detoxification Prior to and After Chemotherapy (Prospective Read more…


What is SLS Jiu Jitsu Class? Jiu Jitsu stands for soft gentle control and Shawn’s Jiu jitsu class is basically high intensity interval training. Most classes begin with a wrestling-type warm up – jogging, push ups, stretching and full body movements. These classes can be a one of the most hardcore workouts. After learning some new Read more…


This class will help improve strength, coordination, and power in the upper body, core and lower body. The unique shape of the kettlebell provides an “unstable force” for handling, which is key for core stabilization and a whole body workout.  Most kettlebell movements engage the entire body at once and in a way that mimics Read more…


Tuesdays 4:30pm Our Kids Boot Camp is designed for kids ages 7 to 14. During the class, our goal for your child is to have fun in a safe environment! Whether they are going through obstacle courses, learning and performing the basics of strength condition, they will be taught the basic of health and fitness Read more…


Monday Wed and Thursdays 4:30pm Saturdays 11:10am Our Kids Boxing Program is designed to get your child excited about being active while providing a safe place to do so! These boxing classes are closely supervised by our boxing coach Shawn Depaul who will teach your child how to properly hit the bag, practice footwork and Read more…


Tuesdays 5:00pm What can be better that working out on a surf board! Using SURFSET® Boards this class is designed help develop your child’s strength, flexibility, power and core control and most importantly they get to simulate how it would feel to be on a surf board! Fun movements such as Duck-Diving, Pop-up’s, and standing Read more…


SLS Fitness is the only fitness facility in New England with Metabolic Effect! The Metabolic Effect is known in exercise research as “excess post exercise oxygen consumption” or EPOC. EPOC is the technical term used to describe the ripple effect that leads to increased caloric consumption for long periods after exercise. Increases in certain hormones Read more…


SLS Fitness offers Metabolic Effect Fat Loss Nutrition Weight loss and Fat loss is very different.  The Metabolic Effect Nutrition program is designed to teach the principles of hormonal nutrition for fat loss. Fat loss is more than a simple mathematics equation of calories in and calories out.  Food is information to the body.  Every Read more…


This advanced class will give any athlete the competitive edge in this unique strength and conditioning program developed by SLS Fitness Trainers. This class will focus on improving your strength and conditioning skills while combining ladder drills, box jumps, speed and agility work,  strength training and flexibility!  This 30 minute class will give any member a dynamic athletic workout!


Free NEW Member Assessments As a new member, we would love to meet with you! SLS trainers will sit with you within your first two weeks of joining and help you set goals!  We will assess your movements, give you suggestions as to which classes you should start with, and give you the option of performing a BMI Read more…


Our personal training model is designed specific for your mind and body needs with coaches to fit your personality and schedule. Our staff of qualified strength and conditioning coaches will formulate goals and the programming to achieve them. We offer personalized and professional training to get you on track, hold you accountable and assist you Read more…


SLS Physical Therapy SLS Physical Therapists Courtney Ford, Heather Rozen and Rebecca Glass team up to provide SLS members corrective exercise screens, soft tissue massage, injury prevention and education to get you back to doing the things that you love to do. SLS offers Physical Therapy for various Treatments of Dysfunctions,  Sport Injuries, and provides FMS Read more…


SLS Power lifting class helps build strength and power through basic core movements, such as Deadlift, Barbell Squats, Power Cleans, Barbell Bench Press and more. This is a slower paced class and our goal is to get you to lift  a % more every time you enter the weight room.  We focus on heavy weight/low Read more…


Prenatal Yoga – Offered: Lowell ONLY Prenatal Yoga provides a nurturing and relaxing atmosphere where you can enhance the bonding process with your baby while supporting the development and strengthening of your body, mind, and spirit during pregnancy. These yoga exercises greatly impact the quality of your pregnancy and birth experience as well as address Read more…


An advanced, high intensity class that incorporates agility drills to help athletes improve coordination, speed, power and specific sports skills. You will perform sprints, plyometric jumps, agility and conditioning drills, that will help develop your overall power and quickness for athletes or anyone wanting to train for speed.


Spinning- Group cycling for all levels on stationary bikes.  This class enables you to achieve athletic conditioning suited for you by using various levels of pedal tension, sitting & standing, mixed handle bar positions and intense intervals.  SLS coaches use powerful music to motivate you during this cardio workout.   The trainer will coach you Read more…


This class provides a full body workout by using  6 – 8 stations in our weight room. You trainer will walk you through each exercise, and then, spot and correct form where needed. Focuses on  muscle-group isolation. Slower in tempo, meant to be a heavy lift day. Beginner Strength Training and Weight Room Classes also Read more…


SLS Fitness Strength & Conditioning has opened within GameTime Sports & Fitness to provide assistance to student athletes in the Merrimack Valley area with technique, strength, and confidence. Our program focuses on power, strength, injury prevention, sustainability, mobility and flexibility in order to safely meet the demands of the athlete’s sport. Led by Program Director Read more…


The Best Non-Motorized Holistic Treadmill Trainer  For Proper Running and Walking Form! Workout on your own, or use during an SLS Class! What is a Tru form treadmill? They do not plug in! No motor or electrical components and the TrueForm has zero electrical consumption! The TrueForm is engineered and hand built in Chester, CT. The simple Read more…


SLS Fitness Offers TRX and TRX Strength Training Classes!  Beginner TRX Classes also available! What is TRX Suspension Training? TRX Training is a revolutionary method of leveraged body weight exercise. Safely perform hundreds of exercises that build power, strength, flexibility, balance, mobility, and prevent injuries, all at the intensity you choose. Suspension Training body weight Read more…


TRX Training is a revolutionary method of leveraged body weight exercise. Safely perform hundreds of exercises that build power, strength, flexibility, balance, mobility, and prevent injuries, all at the intensity you choose. Suspension Training body weight exercise develops strength, balance, flexibility and core stability simultaneously. TRX exercises allow for the use of multiple planes of Read more…


SLS offers a variety of Yoga classes! Yoga Flow / Vinyasa: Vinyasa with a focus on linking conscious breath with a mindful flow of movements. Heated Yoga: A Vinyasa style class, with a heated room (85 degrees). Heat helps us embrace classic yoga postures with deliberate movements to stretch and strengthen the whole body.  Although Read more…