Adult Small-Group
Personal Training & Nutrition
Shed body fat, build lean muscle, and reclaim your fitness with personalized coaching in limited-size sessions. Combined with tailor-made nutrition plans and 1-on-1 accountability.
Tired of Boring Gyms & No Results?
Big box commercial gyms leave you guessing. Large bootcamps hide you in the back of a 30-person crowd where nobody corrects your form or knows your goals.
At GRIT, our Adult Small Group Personal Training bridges the gap. By keeping every session a limited size, you receive 1-on-1 personal trainer feedback at a fraction of the cost of solo personal training.
Limited Size Sessions
Never get lost in the crowd. Your coach guides every single rep, posture, and progression.
Calisthenics & Strength Focus
Build functional bodyweight strength, protect your joints, improve agility, and burn stubborn body fat.
Customized Nutrition Blueprint
Get a clear, easy-to-follow meal plan designed for weight loss or lean muscle building without starving.
Daily & Weekly Accountability
Our program creator, Kurt Sabin, holds you accountable so you stay on track and hit your specific target weight.
Personal Trainer Attention
Form correction, progressive overload & supportive community.
GRIT Year of Change & Challenge
Looking for a complete 30-day or 90-day body transformation? Ask Coach Kurt about our holistic workout + nutrition + accountability support package!
Custom Nutrition & Weight Loss Coaching
You can't out-train a bad diet. We combine small group strength workouts with custom, sustainable nutrition plans that produce real, lasting fat loss.
1-on-1 Fitness & Nutrition Audit
We analyze your current eating habits, metabolic rate, daily schedule, and body composition goals to create a customized nutritional blueprint.
Fat Loss & Muscle Building Macros
No starvation diets or fake quick fixes. Learn simple macro balancing that builds lean muscle, burns body fat, and keeps your energy sky-high.
Weekly Coach Accountability
Head Coach Kurt Sabin checks in with you weekly to review food logs, weigh-ins, and adjust your plan as your body transforms.
GRIT Transformations
Scroll across or hover to pause · Real members, sustainable nutrition & training results
Flexible Adult Workout Plans
Every program is custom-built around your goals, schedule, and budget — with family discounts available. No cookie-cutter packages, just a plan designed for you.
Our Full Obstacle Course Training Facility
In addition to our adult small group coaching and nutrition programs, GRIT is home to a world-class Ninja Warrior, Spartan Race, Tough Mudder, and Calisthenics obstacle course gym!
- Warped walls, monkey bars, ring climbs, Z-walls & ropes
- Kids (6-9 & 10-12), Teen Athletes & Open Gym options
- Action-packed Summer Camps & Private Birthday Parties
What Our Adults & Athletes Say
Rated 4.9 stars across 203+ Google reviews in Waterford, MI.
"Grit is a fun place for fitness! Classes for adults are fun and varied, with the ability to adjust for ability level. Kurt and Dylan are friendly and professional."
Kurt Sabin
Kurt is a seasoned OCR (Obstacle Course Race) competitor, having participated in events across the Midwest and East Coast. He has trained elite athletes featured on American Ninja Warrior and the Spartan Race National Series.
As the leader of the GRIT Year of Change and Challenge teams, Kurt focuses on a holistic approach that includes trainer-led workouts, balanced nutrition, and strong accountability support. Whether you're pursuing specific fitness goals or striving for personal transformation, Kurt's comprehensive program is designed to help you succeed.
Adult Training & Nutrition FAQ
Everything you need to know about our adult small group coaching & nutrition.