1Associated Professor, Department of Physical Therapy, Masan University, Changwon, Republic of Korea
2Assistant Professor, Department of Physical Therapy, College of Tourism & Health, Kinesiopathologic Science Institute, Joongbu University, Geumsan, Republic of Korea, Geumsan, South Korea
Previous studies demonstrated that feedback tool using a pressure biofeedback unit (PBU) decreased uncontrolled lumbopelvic movements such as anterior or lateral pelvic tilt during lower limb movements.
The aim of this study is to compare the amounts of lumbopelvic rotation (LPR) and HMR before start of LPR during prone hip medial rotation (HMR) according to position of PBU in people with lower back pain.
Sixteen subjects with lower back pain performed the prone HMR in each condition as follows; 1) without PBU (WPBU), 2) with PBU under the center of lumbopelvic region (CLPR), and 3) with PBU under the side of lumbopelvic region (SLPR). A 3-dimensional motion-analysis system with six cameras was used to measure the angle of LPR and HMR before start of LPR during prone HMR. Dependent variables were collected three times during prone HMR in each condition.
The results showed significant differences among the three conditions in the angles of LPR and HMR before start of LPR (
When PBU are used to control the lumbopelvic movement, clinicians must select which position of PBU is most effective for decreasing the uncontrolled lumbopelvic movement according to the type of limb movement and the movement plane of lumbopelvic region.
Feedback, hip medial rotation, lower back pain, lower limb movement, lumbopelvic motion
