Effect of the single-leg, lateral oblique, decline squat exercise on sacroiliac joint pain with knee pain

[Purpose] This study investigated the effect of the single-leg, lateral oblique, decline squat exercise on sacroiliac joint pain with knee pain. [Subjects and Methods] A 39-year-old female had severe pain in the right medial buttock and right anterior knee. This study assessed the anterior pelvic tilt angle and pain provocation tests before and after single-leg, lateral oblique, decline squat exercise for 4 weeks. [Results] Following the course of exercise, the anterior pelvic tilt angles were increased, and the visual analog scale pain scores for both the right buttock and right knee were 2/10. [Conclusion] Single-leg, lateral oblique, decline squat exercise may be effective for treating SI joint pain with knee pain in females.