The sacroiliac (SI) joint is the connection between the sacrum and the left and right ilium (hip bones). It is easily palpated in the lower back and right under the skin of the aptly named “back dimples”.
Dysfunction in the SI joint can result in localized low back and sacral pain as well as discomfort into the legs. Causes include degenerative arthritis, direct trauma, leg length discrepancy, altered gait due to pain in the leg, and increased ligament laxity during pregnancy.
Taping is an effective means to help the SI joints regain normal function and stability. KT Tape shows a method using a normal strip and two shorter ones while Rocktape uses a star pattern to achieve the same goal.