Kozak Signature Program
COBRA - Steel Back & Unbreakable Core
A cobra can rise and look a man straight in the eyes thanks to its spine, constant core engagement, and exceptional postural control.
COBRA is designed to build a strong, mobile back, a resilient core capable of maintaining tension under pressure, and a spine built to absorb and transfer force efficiently. The objective is simple : create a stable, durable, and unbreakable structure.
Back & Core
Spinal Strength
Duration
4 Weeks
Public
Men
Content
PDF + 120 Video Exercises + Built-In Tracking
Referrals
Trusted by UFC, NBA & Bundesliga Athletes
Powerful Back – Develop a posterior chain capable of generating, absorbing, and transferring greater force.
Functional Core – Build a powerful core that keeps your body stable and under tension in every situation.
Reinforced Spine – Improve spinal stability, postural control, and resilience under both training and everyday demands.
Total Control – Every movement becomes more precise, stable, and efficient through stronger integration between your upper and lower body.
COBRA is designed for men who want to build a powerful back, a functional core, and a spine capable of absorbing, stabilizing, and transferring force.
Inspired by one of nature's most fascinating predators, capable of rising through exceptional postural control, COBRA develops the invisible foundations of performance: stability, core strength, posture, and resilience.
This program is built for those who understand that true performance begins with a solid foundation. A strong back, a powerful core, and a stable spine are the cornerstone of every athletic movement.
This program is for you if :
You want to build a stronger, more resilient back.
You want to develop a functional, performance-driven core.
You want to improve your posture and body alignment.
You want to eliminate weaknesses throughout your posterior chain.
You want to become stronger in every lift and upper-body movement.
You want to build a more resilient, better-balanced body.
COMPLETE TRAINING PROGRAM – A structured 4-week progression specifically designed to strengthen your back, core, and the entire spinal support system.
EXERCISE LIBRARY – Access over 120 exercises organized by category, each with a detailed video demonstration to ensure proper technique.
PROGRESS TRACKING – An integrated tracking system to monitor your performance, training loads, and progress throughout the program.
INSTANT ACCESS – Immediate download of the complete PDF program and full access to the entire video exercise library.
BUILT BY ZAKARIYA KOZAK
Holding a Master's Degree in Elite Performance from INSEP, Zakariya Kozak has spent more than a decade working with athletes competing in the world's most demanding professional sports environments.
Athletes from the UFC, NBA, Bundesliga, national teams, and world champions have all benefited from the same performance principles used to build COBRA.
This program is the result of years of hands-on experience, field-tested expertise, and continuous optimization - now distilled into a structured system designed to help anyone build a powerful back, a strong core, and a durable physical foundation.
Frequently Asked Questions
Frequently Asked Questions
Who is the PESL™ System designed for ?
Is this traditional sports coaching ?
Is the coaching personalized ?
Are spots limited ?
How can I join the PESL™ System ?