The effect of simulating a leg-length discrepancy on pelvic position and spinal posture.
[Purpose] The purpose of this study was to examine how a leg-length discrepancy contributes to the pelvic position and spinal posture. [Subjects and Methods] A total of 20 subjects (10 males, 10 females) were examined during different artificially created leg-length inequalities (0-4 cm) using a platform. The pelvic tilt and torsion and the sagittal deviation of the spine were measured using the rasterstereographic device formetric 4D. [Results] Changes in platform height led to an increase in pelvic tilt and torsion, while no changes in the spinal posture were found with the different simulated leg-length inequalities. [Conclusion] Our study showed that a leg-length discrepancy may cause pelvic deviation and torsion, but may not lead to kyphosis and lordosis. Therefore, we consider that an artificially created leg-length discrepancy has a greater effect on pelvic position than spine position.
Department of Physical Therapy, Dong-Eui Institute of Technology, Republic of Korea.
Yu-Jeong
YJ
Kwon
Department of Physical Therapy, Dong-Eui Institute of Technology, Republic of Korea.
Minyoung
M
Song
Department of Physical Therapy, Dong-Eui Institute of Technology, Republic of Korea.
Il-Hun
IH
Baek
Department of Physical Therapy, Dong-Eui Institute of Technology, Republic of Korea.
Taesik
T
Lee
Leg-length discrepancy; Pelvic position; Spinal posture