Shutetsu Method: Unlocking Impact Without Tension Vol 1 DVD by Masashi Fujiwara

Unlock Explosive Power Without Relying on Raw Strength

“Choshin” (Straight Core) is a foundational posture concept designed to generate true power from within the body. Even with strong muscles, many practitioners fail to express their full strength—this is often due to using the wrong muscle groups.

Shu Tetsu’s method focuses on a fundamental shift: moving from exerting force with superficial muscles to channeling power through the deep muscle system. When the deep musculature aligns the body into a unified structural axis, ground reaction force can flow seamlessly through the entire body, enabling explosive power from any position.

This volume presents the essential training methods that build and internalize the Choshin system. Through clear instruction and practical drills, you will develop the body mechanics needed to produce efficient, powerful movement.

Contents

● Raise Hand – Foundational Choshin Training

• Understanding the Choshin posture
• Raising hands from seiza (kneeling position)
• How to properly construct the Choshin structure
• The purpose of the raising-hand exercise and how it differs from aiki-based methods
• Breathing, axial extension, and posture alignment
• Proximal stability—the core principle behind generating strong force
• Verifying deep muscle engagement

● Power Beyond Arm Strength – Harnessing Ground Reaction Force

• Standing arm-wrestling exercises to connect ground force through the entire body
• Responding to lateral pressure at the hips
• Developing movement quality that does not rely on superficial muscle tension

● Escaping from a Mount from Below – Lumbar Stability & Thoracic Rotation

• Techniques for reversing a mounted position
• Establishing the Choshin posture while lying on your back
• Handling lateral shoulder pressure
• Coordinating lumbar stability with thoracic rotation
• One-on-one applications from both directions

This training is designed to help you fundamentally upgrade how your body generates and transmits power—refining your structure, improving efficiency, and unlocking explosive movement from a stable core.

About the Instructor: 

Masashi Fujiwara studies various styles, including karate, and in the process, he explores training methods. He also interacts with many martial artists and fighters. In 2020, he established "Shutetsu Karate-do" as a style of karate that focuses on the power of techniques. He has now changed the name of his group to "Shutetsu" in order to conduct more free and broad research, rather than focusing on karate-do, and continues to teach regardless of style or organization.