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Indian Journal of Physiotherapy and Occupational Therapy - An International Journal
Year : 2019, Volume : 13, Issue : 3
First page : ( 178) Last page : ( 184)
Print ISSN : 0973-5666. Online ISSN : 0973-5674.
Article DOI : 10.5958/0973-5674.2019.00115.1

Effects of Positions of Pressure Biofeedback Unit on Lumbopelvic Rotation during Prone Hip Medial Rotation

Koh Eun-kyung1, Jung Do-young2,*

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

*Corresponding Author: Do-young Jung, PT, PhD, Address: Department of Physical Therapy, College of Tourism & Health Science, Joongbu University, Geumsan, South Korea. E-mail: ptsports@joongbu.ac.kr

Online published on 11 July, 2019.

Abstract

Background

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.

Objective

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.

Method

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.

Results

The results showed significant differences among the three conditions in the angles of LPR and HMR before start of LPR (p < 0.05). The results of the post hoc test showed significantly less angle of LPR under CLPR and SLPR conditions than under WPBU condition (p < 0.016). The angle of HMR before start of LPR was significantly greater in SLPR than WPBU condition (p < 0.016).

Conclusion

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.

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Keywords

Feedback, hip medial rotation, lower back pain, lower limb movement, lumbopelvic motion.

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