Introduction and Curriculum Context

The twin forearm block is an essential technique for yellow belt students preparing for advancement testing. This simultaneous dual-block defense combines an outer forearm side block with a rising block to defend against multiple attack angles.

Technique Composition and Application

The twin forearm block consists of two simultaneous defensive movements: a primary outer forearm side block targeting frontal attacks at middle level, and a secondary rising block defending against lateral threats. The primary block determines focus and stance orientation, with the secondary block serving as contingency defense.

Stance and Arm Configuration

The technique is most commonly executed from L stance, with the rear foot positioned opposite the blocking arm side. In a right L stance, the left arm executes the primary side block while the right arm performs the rising block, with both forearms rotating outward simultaneously.

Arm Positioning and Overlap

The arms cross at the wrists during execution, with the primary side block arm positioned on the inside and slightly above. This configuration ensures the outer forearm of the side block aligns with the shoulder centerline while maintaining proper defensive coverage without excessive proximity to the torso.

Final Block Positioning

Both blocking elbows maintain a 45-degree bend at completion. The side block fist positions at shoulder height with the outer forearm aligned to the shoulder center, while the rising block's inner forearm remains seven centimeters from the forehead, with the outer forearm protecting the head's lateral side.

Execution from L Stance Transition

The technique begins from parallel stance with weight shifting to the rear foot, which pivots inward 15 degrees to establish L stance position. The practitioner executes a sharp downward drop synchronized with the blocking motion, distributing 70 percent of body weight to the rear leg while exhaling forcefully.

Power Generation and Body Mechanics

Practitioners should turn 90 degrees between repetitions to maximize hip rotation and generate power through proper weight transfer. The abdominal contraction at block completion amplifies force delivery, particularly strengthening the primary side block application.

Twin Knife Hand Variation

An advanced variation employs knife hands instead of forearms, positioning fingertips at shoulder level. The knife hand placement requires slight arm repositioning with the thumb seven centimeters from the forehead, and is standard technique in higher-level patterns such as Yul Gok.

Twin Forearm Block - Taekwon-Do Lesson #18

Donato Nardizzi

Forearm Block

2 min read·8 key moments·PT5M45S video

Key Takeaways

•Introduction and Curriculum Context
•Technique Composition and Application
•Stance and Arm Configuration
•Arm Positioning and Overlap

This video shows you how to perform a Twin Forearm Block. Recommended for 8th kup grade studentsand above, the video explains, in detail, how to practice every aspect of the block including positioning the arms before the block, positioning the arms at the end of the block, sine wave motion and how to develop more power. Intro by Miren Patel http://mirenpatel.com Want to see more videos on Taekwon-Do? Subscribe to my channel: http://www.youtube.com/channel/UCMc95Uvuz52fG1hx4hAQ__g?sub_confirmation=1 Website: http://donatonardizzi.com _________________________________________________________________ Disclaimer : I recognise Grand Master General Choi Hong Hi as the true authority on Taekwon-Do. The information in my tutorial is based on my interpretation of Taekwon-Do as taught to me by the Founder General Choi Hong Hi and as referred to in his book ‘TAEKWON-DO’ (5th Edition 1999) Published by ITF and printed in Canada. Other Taekwon-Do Masters and Grand Masters may have a different interpretation of Taekwon-Do theory and practice, so if you are a Taekwon-Do student, it is important to check with your instructor if you are not sure about which interpretation you should be following.

Related Techniques

Age Uke Cross Block

Frequently Asked Questions

What does this video teach about forearm block?

This video covers introduction and curriculum context, technique composition and application, stance and arm configuration. It provides detailed instruction from Donato Nardizzi.

How long does it take to learn forearm block?

The basic mechanics can be understood in a single session, but developing reliable execution requires consistent drilling over weeks of practice. This 8-part breakdown helps structure your training by isolating each phase of the technique.