About Scott Hejna
Pioneer in Medically Supervised Weight Management & Founder of HIIT5 Performance
Pioneer in Medically Supervised Weight Management
Scott Hejna is the founder and visionary behind HIIT5 Performance, Illinois' leading medically supervised weight loss program combining Semaglutide protocols with high-intensity interval training. With over 22 years in elite fitness training, Scott has revolutionized the approach to sustainable weight management by addressing the critical challenge that plagues most weight loss programs: muscle preservation during rapid fat loss.
After witnessing countless clients struggle with traditional diet and exercise approaches that resulted in significant muscle loss alongside fat reduction, Scott developed the HIIT5 Performance system—a comprehensive protocol that strategically integrates GLP-1 receptor agonist medications with precision-timed high-intensity training to maximize metabolic efficiency.
Professional Background & Expertise
Scott began his fitness journey at age 19 and quickly distinguished himself through his evidence-based approach to training and nutrition. His educational background includes:
- NASM Certified Personal Trainer
- Specialized Certification in GLP-1 Protocol Administration
- Advanced Training in Metabolic Health and Body Composition Analysis
- Continuing Education in Pharmaceutical Interventions for Weight Management
What truly sets Scott apart is his pioneering work in the integration of medical and exercise sciences. By closely studying the metabolic pathways affected by GLP-1 medications like Semaglutide, Scott developed training protocols that specifically complement and enhance the medication's effects while counteracting potential muscle loss—a common side effect of rapid weight reduction.
The HIIT5 Ecosystem
Scott's vision extends beyond individual client transformations through his development of three interconnected fitness ventures:
HIIT5 Performance
Scott's flagship medical weight management center specializing in Semaglutide-assisted transformation programs. This invitation-only facility provides comprehensive medical screening, DEXA scans, and custom HIIT programming.
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HIIT5 Training
A comprehensive fitness methodology focused on efficient, high-intensity workouts with 5-phase structures optimized for metabolic conditioning and progressive programming for sustainable results.
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Aira Fitness
As Vice President and multi-unit franchise owner of Aira Fitness, Scott has expanded his impact through a franchise gym model powered by the HIIT5 Training system available in locations across multiple states.
Learn MorePhilosophy & Approach
Scott's approach to fitness and weight management is guided by several core principles:
"The true measure of a successful weight loss program isn't just pounds lost—it's what those pounds consist of. Our goal is to ensure virtually every pound lost comes from fat, not muscle."
His evidence-based methodology focuses on:
Customization
Recognizing that each client's body responds uniquely to both medication and exercise
Scientific Precision
Utilizing medical testing and body composition analysis to guide protocol adjustments
Sustainable Results
Developing habits and metabolic adaptations that prevent weight regain
Education
Empowering clients with knowledge about their own metabolic function
Community
Building supportive environments that reinforce positive behavior changes
Client Success Stories
Scott's work has transformed hundreds of lives throughout Illinois and beyond. Notable client outcomes include:
- Metabolic Health Improvements: Clients regularly experience normalized blood glucose, improved cholesterol profiles, and reduced inflammation markers
- Significant Fat Reduction: Average fat loss of 15-20% of body weight while preserving over 90% of lean muscle mass
- Medication Reduction: Many clients with type 2 diabetes have significantly reduced or eliminated their need for medication
- Long-term Success: Scott's clients demonstrate much higher long-term success rates than traditional weight loss approaches
Community & Leadership
Beyond his direct client work, Scott is dedicated to advancing the field of medical weight management. He regularly:
- Consults with medical professionals on integrating exercise with GLP-1 protocols
- Mentors new fitness professionals in evidence-based methodologies
- Contributes to discussions on ethical approaches to weight management
- Supports community health initiatives throughout McHenry County
Professional Credentials
NASM Certified
Personal Trainer
GLP-1 Protocol
Specialist
Metabolic Health
Expert
HIIT Advanced
Training Certified
500+
Client Transformations
Ready to Begin Your Transformation?
Scott maintains a limited client roster to ensure personalized attention and optimal results. New clients are accepted by application only, with priority given to individuals with significant weight management needs who are committed to the comprehensive protocol.
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