Core Swagger RSD

The Key to Stability in Tennis Strokes. A revolutionary training tool that helps tennis players intuitively master core stability through impulse rewards.

by Cor Labz

 
 
 

1️⃣ The Problem – Why Core Stability Gets Overlooked

Most tennis training focuses on visible mechanics—footwork, racket position, ball placement. But true control, balance, and power come from the core, which is nearly impossible to see.

As a sports-specific fitness coach and physical therapist, I’ve spent years analyzing biomechanics in tennis, lecturing at GPTCA, and teaching ABC levels in professional coaching programs. My experience working with tennis coaches worldwide helped me uncover a crucial problem:

  • Coaches don’t have time to monitor core biomechanics – Their eyes are trained on the ball and stroke execution, but the minute movements in the trunk are nearly invisible.

  • Players struggle to feel proper core activation – Without feedback, they rely on guesswork—slowing learning and making improvement frustrating.

World-Renowned Tennis Coach Tomaz Mencinger Validated through rigorous testing, this wearable revolutionizes activation timing, unlocking precision and control for athletes.

Physical Therapist Neil Alvarez A biomechanics specialist and the visionary inventor behind this groundbreaking wearable, redefining movement and performance in sports.

2️⃣ The Solution – Introducing Core Swagger RSD

Core Swagger RSD is a simple yet revolutionary training tool designed to bridge this gap.

Instead of focusing on errors, it guides players toward correct movement effortlessly using a unique impulse reward system—reinforcing proper core activation in real time.

  • No more overthinking—just feeling. Players receive instant feedback when they engage their core correctly, helping them memorize stability naturally.

  • Coaches train smarter, players improve faster. Core Swagger RSD makes biomechanical awareness instinctive, turning complex stability concepts into effortless mastery.

3️⃣ Why It’s Game-Changing

Most players think stability comes from strong legs or a balanced stance, but the true foundation of movement is in the pelvis—the center of core activation.

Core Swagger RSD transforms training by shifting from thinking to feeling, making structural stability an instinct instead of an afterthought.

Makes invisible biomechanics tangible

Impulse Reward System

Pelvis-Centered Stability

Faster learning, better performance

With Core Swagger RSD, players don’t have to wonder if their core is engaged—they experience it firsthand, making tennis training smarter and more effective.

 


 

4️⃣ Product Development & Testing

Core Swagger RSD is not just an idea—it’s a fully functional training tool that has already been tested and refined to ensure optimal performance.

Working Prototype Completed

Biomechanical Validation

Coach & Player Feedback

Ready for Production

5️⃣ Be Part of the Future of Tennis Training

Join the movement toward smarter, more effective training and experience the power of true stability with Core Swagger RSD!