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conferenceseries
.com
Volume 8
Journal of Novel Physiotherapies: Open Access
Physiotherapy Conference 2018
November 19-20, 2018
November 19-20, 2018 Bangkok, Thailand
6
th
International Conference on
Physiotherapy
Sung-Min Ha et al., J Nov Physiother 2018, Volume 8
DOI: 10.4172/2165-7025-C4-033
The effects of the visual bio-feedback information to control for hyper extended knee
Sung-Min Ha
1
, Jung Sung hoon
2
and In-Cheol Jeon
3
1
Sangji University, South Korea
2
Yonsei University, South Korea
3
Hoseo University, South Korea
H
yper-extended knee is described as knee pain associated with impaired knee extensor mechanism. Additionally, hyper-
extension of knee may have reduced knee joint position sense that may reduce the individual`s ability to control end range
knee extension movement. The Purpose of this study is to investigate the effects of visual bio-feedback information for plantar
weight bearing distribution to plantar pressure for the foot, lower extremity muscle activities, and knee joint angle in subject
with hyper-extended knee. Thirty subjects with hyper-extended knee were participated in the study. Surface electromyography
was recorded for the rectus femoris, biceps femoris, tibialis anterior and gastrocnemius muscle activities. The plantar weight
bearing distribution displayed and measured using a pressure measurement mats. Kinematic parameter for knee joint angle
was recorded using a motion analysis system. A paired t-test was used to determine the significance between visual bio-
feedback and prefer condition. Knee joint angle significantly decreased in the visual bio-feedback condition than prefer
condition (p<0.05). RF and GCM muscle activities were significantly differ between visual bio-feedback and prefer condition
(p<0.05). The results of this study showed that the visual bio-feedback information of plantar weight bearing distribution is
effective for correction of hyper-extended knee.
Biography
Sung-Min Ha is currently an Assistant Professor in the Department of Physical Therapy at the College of Health Science of Sangji University. He has received
his PhD from Yonsei University in 2012. He is interested in the mechanism of movement impairment, biomechanics and development of therapeutic intervention
approach through movement analysis and EMG study for movement disorders and musculoskeletal disease.
hsm98@sangji.ac.kr