Aferentne i eferentne włókna nerwowe
The piriformis : how can one little muscle cause so much trouble? Yoga poses and sequences to help with piriformis syndrome - ekhartyoga.com
Protecting the knee in Pigeon Pose: Top illustrates engaging the muscles on the outside of the knee. Bottom shows the piriformis muscle stretching in Pigeon Pose.
The number one cause of lower-back pain is a tight hip flexor (or psoas). It happens to everyone and is usually caused by sitting down; another cause is sleeping on your side in a fetal position.