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10 Years
experience
Your Premier Fitness Training Partner in Greenwich, CT
Founded in 2016, Mason Street Strength & Fitness has established itself as a premier fitness training facility in Greenwich, Connecticut. Our team of certified professionals brings decades of combined experience in strength and conditioning, serving athletes of all ages, prenatal/postnatal clients, and individuals seeking personalized fitness solutions. We utilize science-backed methodologies to create customized programs that prioritize injury prevention, movement efficiency, and performance optimization. Our coaches hold advanced certifications from recognized institutions and have worked with collegiate, professional, and youth athletes. The facility offers specialized services including tandem training, assisted stretching sessions, and sport-specific performance programs.

With a focus on community engagement and evidenced-based practices, we maintain partnerships with local schools and sports organizations. Our commitment to continuous education ensures staff remain current with the latest training methodologies and safety protocols. The facility's design emphasizes functional training spaces equipped with state-of-the-art equipment. We maintain transparent communication with clients regarding progress tracking and program adjustments. Our operational philosophy combines professional expertise with personalized attention to help clients achieve measurable, long-term results.
Services
Personal Training Youth Athlete Training Prenatal Fitness Tandem Training Assisted Stretching Performance Coaching Postnatal Rehabilitation Strength Development Sports Conditioning Mobility Enhancement
Details
  • Year established: 2016
Highlights and features
  • Certified coaches with professional sports organization experience
  • Customized programs based on functional movement assessments
  • Specialized prenatal/postnatal rehabilitation expertise
  • Proven track record with collegiate athlete development
  • Integrated approach combining strength training with injury prevention
Associations and certifications
  • NSCA (National Strength and Conditioning Association)
  • NASM (National Academy of Sports Medicine)
  • ACSM (American College of Sports Medicine)
  • FMS (Functional Movement Systems)
What people say
Experienced coaches Specialized programs Community recognition Professional staff Effective training
Services
Personal Training
Customized fitness programs tailored to individual goals and capabilities. Our certified trainers develop progressive workout plans that address specific needs while prioritizing proper form and injury prevention. Sessions incorporate strength development, cardiovascular conditioning, and mobility work to create balanced fitness outcomes for clients of all experience levels.
Youth Athlete Training
Specialized programs for young athletes focusing on foundational movement patterns and injury prevention. Training emphasizes proper mechanics, relative strength development, and sport-specific skill enhancement. Our coaches implement age-appropriate progressions to build athletic capacity while maintaining long-term development goals for competitive and recreational participants.
Prenatal Fitness
Safe, effective exercise programs designed for expectant mothers. Sessions focus on maintaining cardiovascular health, core stability, and joint mobility throughout pregnancy. Our certified specialists guide clients through appropriate modifications while emphasizing benefits like improved circulation, controlled weight management, and preparation for labor through targeted strength development.
Assisted Stretching
Professional stretching sessions targeting major muscle groups and movement patterns. Trained specialists deliver both general and customized flexibility programs to improve range of motion, reduce muscular imbalances, and enhance recovery. Options include 25-minute focused sessions or comprehensive 50-minute full-body treatments addressing specific mobility limitations.
Performance Coaching
Advanced training programs for competitive athletes focusing on speed, power, and sport-specific performance metrics. Coaches implement periodized programming with neuromuscular training to enhance force production and absorption. The system integrates energy system development, movement efficiency, and sport-specific demands to maximize athletic potential at all competitive levels.
People
Daniel Belli
Owner/Strength Coach
Exercise Science graduate with Connecticut Physical Education certification. Former collegiate football player with decade of industry experience. Developed programs for youth athletes and adults while serving as Fitness Training Manager in regional clubs.
Kyle Marandino
Strength Coach
NSCA-certified specialist with experience in professional baseball and collegiate programs. Former strength coach for Boston Red Sox organization. Holds advanced certifications in strength and conditioning through national accrediting bodies.
Julianna Fauci
Performance Coach
Kinesiology graduate with specialization in integrated performance training. Combines strength development with rehabilitation principles. Former collegiate athlete with expertise in post-operative recovery and injury prevention programs for diverse populations.
Kate Stahl
Prenatal Specialist
Certified personal trainer with pre/postnatal specialization. Marathoner with focus on women's health through pregnancy transitions. Addresses diastasis recti and pelvic floor rehabilitation while promoting functional strength development for expectant and new mothers.
Chris Cledera
Strength Coach
Exercise Science graduate with track and field background. Combines biomechanics knowledge with Postural Restoration principles. Former physical therapy clinic professional offering science-based programs for injury recovery and performance enhancement across various populations.
Questions
What age groups do you train?
We work with clients from teenagers to seniors, including specialized programs for youth athletes and prenatal/postnatal clients.
Do you offer sports-specific training?
Yes, our performance coaches develop sport-specific programs for football, soccer, lacrosse, and other competitive sports at all levels.
Are your trainers certified?
All coaches hold multiple certifications including NSCA, NASM, and ACSM credentials with many having professional sports organization experience.
What makes your prenatal program unique?
Our prenatal specialists combine medical certifications with practical experience to create safe, effective programs addressing pregnancy-specific needs and postpartum recovery.
Do you provide injury prevention training?
Yes, our programs emphasize proper movement patterns, biomechanics, and strength development to reduce injury risk across all client groups.
Can I train with a partner?
Tandem training options are available, allowing partners to work out together while maintaining individualized program focus and progression.