Meet Our Trainers

David Sandoval, the founder and owner of DMSfit in Chicago, brings over 25 years of personal training experience to his thriving fitness studio. His journey began modestly, training clients from his basement, driven by a passion for fitness and a dedication to helping others achieve their goals. Over the past decade, he has expanded DMSfit into a well-respected studio known for its welcoming atmosphere and tailored approach.

David’s philosophy centers on personalized attention, recognizing that each client has unique needs and goals. He creates individualized programs, ensuring everyone feels seen and supported in their fitness journey. His hands-on, compassionate approach has earned him a loyal following, with clients praising his commitment to their success and well-being.

With over 12 years of experience training clients, Sarah brings a wealth of expertise and passion to every session. A former gymnast for 15 years and a seasoned bodybuilding competitor, Sarah understands the dedication, discipline, and mindset required to achieve transformative results.

Specializing in strength training, functional fitness, and performance optimization, Sarah tailors programs to meet each client’s unique goals—whether it’s building muscle, increasing flexibility, or enhancing overall well-being. Committed to inspiring others, Sarah believes fitness is not just a journey but a way of life.

Caroline’s fitness journey began as a dedicated client of David Sandoval at DMSfit. Inspired by her personal transformation and the supportive environment, she developed a deep passion for fitness and strength training, ultimately becoming a personal trainer at the very place where her journey began.

With years of experience training and coaching clients, Caroline brings high energy and infectious enthusiasm to every session. Her goal is to empower clients to feel strong, confident, and capable—both inside and outside the gym. Known for her positive attitude and personalized approach, she focuses on making fitness fun and sustainable, helping clients build lasting habits and achieve their individual goals.

Caroline’s love for seeing others succeed fuels her dedication, creating an uplifting environment where everyone feels motivated and supported on their fitness journey.

Adam brings over 10 years of experience in jiu-jitsu, boxing, and competitive sports, as well as personal training, to his sessions at DMSfit. His extensive background in martial arts and fitness gives him a unique perspective on strength, conditioning, and discipline, which he shares with clients looking to improve their fitness or take on their own competitive challenges.

Known for his brutally sincere approach, Adam doesn’t sugarcoat the journey to fitness. He challenges his clients with honesty, pushing them to work hard and break through mental and physical barriers. His no-nonsense attitude fosters accountability and ensures that every training session counts, with a focus on results-driven techniques that translate into real-world strength, endurance, and performance.

Whether you’re training for competition or personal growth, Adam’s rigorous, focused style will help you reach new heights while cultivating mental toughness.