Triphasic Thoracic Tuck Method – Anterior Sling Series 1.0

Unleashing Performance Potential with the Triphasic Thoracic Tuck Method 


In this video series, an intriguing concept called the Triphasic Thoracic Tuck Method is introduced. This method focuses on the connection between the thoracic spine and the contralateral psoas, offering a unique approach to optimizing movement, addressing pain, and enhancing exercise performance. Let’s explore the main points from the video to understand this methodology better.

The Real Core:

Contrary to popular belief, the core is not just about abdominal muscles; it encompasses the hips and the spine. The thoracic spine, situated atop the hips, plays a pivotal role in driving movement and stability. It is the true core that significantly influences overall performance. By recognizing this, we can move away from solely targeting the abs and expand our focus on the spine and hips. This is a blog post to show proper and dysfunctional hip function

Discovering the Triphasic Thoracic Tuck Method:

The journey towards discovering the Triphasic Thoracic Tuck Method began with observing elite athletes performing movements at high velocities. These athletes, already free from compensation patterns, moved in a particular way that caught Coach Dietz’s attention. It was the synchronization between the thoracic spine and the contralateral psoas that intrigued the staff the most.

Understanding the Method:

The method involves utilizing the thoracic tuck to stabilize and activate the contralateral psoas. By pulling the shoulder forward from the thoracic area, rather than the abs, a connection is established that optimizes the functioning of the contralateral hip flexor. When the thoracic tuck is locked in, the hip flexor engages and works synergistically with the rest of the body.

Applications and Benefits:

Implementing the Triphasic Thoracic Tuck Method offers numerous advantages. When applied to exercises and drills, it helps prevent compensation patterns, reduce pain, and improve overall movement quality. By emphasizing thoracic stability, athletes can enhance their running mechanics, achieve better arm and leg coordination, and maximize top-end speed. The method also serves as an effective indicator of functional movement quality and helps identify areas that require further attention.

Integration with RPR:

The Triphasic Thoracic Tuck Method can be a standalone technique but can be integrated into the Reflexive Performance Reset (RPR) system. RPR coaches can address specific issues by combining the appropriate level of RPR fixes alongside the application of the thoracic tuck method. This holistic approach ensures that compensation patterns are eliminated, and optimal movement is restored.



The Triphasic Thoracic Tuck Method represents a significant finding in movement optimization and exercise performance. By recognizing the essential connection between the thoracic spine and the contralateral psoas, athletes and coaches can unlock their full potential. Integrating this method with RPR techniques offers a comprehensive approach to addressing movement issues, pain, and maximizing athletic performance.