One of the most common causes of non-traumatic low back pain that we see in our clinics comes from quadricep or thigh muscles that have become too short or too tight. When the rectus femoris muscle, a muscle of the quads which attaches to the pelvis, becomes too short, it creates a forward tilt to the pelvis and compresses the nerves in the lower back.

In the following video, Dr. Jason Lemieux of Physiomed Oakville demonstrates a quick test you can do at home to see if your quadriceps are too tight as well as some exercises for loosening up these muscles: