Mastering the Genou-poitrine + Croisé Technique: A Guide for Patients and Therapists

KineoNet Team — 5/25/2026

Explore the Genou-poitrine + croisé technique, a vital exercise for stretching the piriformis and enhancing mobility. Perfect for therapists and patients.

Introduction

The Genou-poitrine + croisé technique is a vital exercise designed specifically to stretch the piriformis muscle. This small yet significant muscle is located deep in the buttock, and when it becomes tight, it can lead to discomfort and mobility issues, particularly in individuals with piriformis syndrome. This technique is ideal for both patients and physical therapists, as it aids in improving flexibility, reducing pain, and enhancing performance in various physical activities.

Anatomy and Causes of Piriformis Syndrome

The piriformis muscle plays a critical role in the movement of the hip and is essential for stabilizing the pelvis. It helps to externally rotate the hip joint and assists with movements like walking, running, and climbing stairs. Tightness or spasms in this muscle can lead to piriformis syndrome, characterized by pain, numbness, and tingling in the buttock region, and can even radiate down the leg if it irritates the nearby sciatic nerve.

Common causes of tightness in the piriformis muscle include:

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