Abstract：
OBJECTIVE:The aim of the study was to compare the muscle activation feature of vastus medialis obliquus (VMO) and vastus lateralis (VL) between the osteoarthritic knee patients with patellar lateral subluxation (Group 1B) and without patellar lateral subluxation (Group 1A). METHODS:Isokinetic muscle strength of the knee extensor was evaluated using a CYBEX NORM dynamometer with angular velocities of 80, 120 and 240 degrees/second (°/sec) respectively, contraction activities of VMO and VL muscle were recorded with synchronized surface electromyography (sEMG). Age-matched healthy subjects were recruited and served as control group (Group 2). The VMO/VL ratio of EMG between Group 1A, Group 1B and Group 2 were compared. RESULTS:The peak torque in Group A was 40.7 ± 12.9, in Group B was 39.6 ± 12.9 and in Group C was 60.2 ± 9.5 respectively at 80°/sec angular velocity (p < 0.01). There were no significant difference between Group 1A and Group 1B in the three trial of tested velocities (p > 0.01). The sEMG ratios of VMO/VL of Group 1B calculated at angular velocities of 80/sec was 0.769 ± 0.15, 120°/sec was 0.818 ± 0.22 and 240°/ sec was 0.850 ± 0.22, all those were lower than Group 1A and Group 2 (p<0.01). CONCLUSION:Musculature imbalance of VMO and VL may explain the different muscle activation pattern in osteoarthritic knee patients with and without patellar lateral subluxation.
journal_name
Clin Neurol Neurosurgjournal_title
Clinical neurology and neurosurgeryauthors
Tang SF,Wu CK,Chen CH,Chen JT,Tang AC,Wu SHdoi
10.1016/S0303-8467(15)30009-3subject
Has Abstractpub_date
2015-02-01 00:00:00pages
S30-5eissn
0303-8467issn
1872-6968pii
S0303-8467(15)30009-3journal_volume
129 Suppl 1pub_type
杂志文章abstract：:Glioneuronal neoplasms are rare tumors that typically affect patients in the first three decades of life. Since the publication of the World Health Organization (WHO) 2000 classification of tumors, further variants of these tumors have been reported. We present an 83-year-old gentleman who presented with a history of ...
journal_title：Clinical neurology and neurosurgery
pub_type： 杂志文章,评审
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journal_title：Clinical neurology and neurosurgery
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journal_title：Clinical neurology and neurosurgery
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journal_title：Clinical neurology and neurosurgery
pub_type： 杂志文章
doi：10.1016/j.clineuro.2008.12.007
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journal_title：Clinical neurology and neurosurgery
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journal_title：Clinical neurology and neurosurgery
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journal_title：Clinical neurology and neurosurgery
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journal_title：Clinical neurology and neurosurgery
pub_type： 杂志文章
doi：10.1016/j.clineuro.2018.06.015
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journal_title：Clinical neurology and neurosurgery
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journal_title：Clinical neurology and neurosurgery
pub_type： 杂志文章
doi：10.1016/j.clineuro.2007.09.012
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journal_title：Clinical neurology and neurosurgery
pub_type： 杂志文章
doi：10.1016/j.clineuro.2014.06.033
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journal_title：Clinical neurology and neurosurgery
pub_type： 杂志文章
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更新日期：1995-05-01 00:00:00
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doi：10.1016/j.clineuro.2014.04.010
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journal_title：Clinical neurology and neurosurgery
pub_type： 杂志文章
doi：10.1016/j.clineuro.2010.07.013
更新日期：2010-12-01 00:00:00
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journal_title：Clinical neurology and neurosurgery
pub_type： 杂志文章,评审
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journal_title：Clinical neurology and neurosurgery
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journal_title：Clinical neurology and neurosurgery
pub_type： 杂志文章,meta分析,评审
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更新日期：2019-11-01 00:00:00
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journal_title：Clinical neurology and neurosurgery
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doi：10.1016/j.clineuro.2008.12.001
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journal_title：Clinical neurology and neurosurgery
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doi：10.1016/j.clineuro.2015.04.025
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journal_title：Clinical neurology and neurosurgery
pub_type： 杂志文章
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pub_type： 杂志文章
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journal_title：Clinical neurology and neurosurgery
pub_type： 杂志文章,评审
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更新日期：1991-01-01 00:00:00
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journal_title：Clinical neurology and neurosurgery
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doi：10.1016/j.clineuro.2014.12.017
更新日期：2015-03-01 00:00:00
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