Abstract:
OBJECTIVE:We measured the surface electromyographic activities of vastus medialis obliquus and vastus lateralis in 16 subjects with patellofemoral joint pain syndrome. DESIGN:Each subject performed bilateral static knee extension exercises at 60% of his or her maximal voluntary effort under different combinations of hip rotation (30 degrees of medial rotation, neutral, 45 degrees of lateral rotation) and knee flexion (20 and 40 degrees) in a standing position. The ratio of surface-integrated electromyographic signals of vastus medialis obliquus over vastus lateralis was calculated for each of the six conditions. Because of significant interaction of hip rotation and knee flexion in the two-way analysis of variance, data were analyzed separately with paired t tests for the effect of knee positions and one-way repeated measures analysis of variance for hip positions. RESULTS:At 20 degrees of knee flexion, there was no significant difference among the three hip positions, whereas at 40 degrees of knee flexion, medial rotation of the hip resulted in significantly higher vastus medialis obliquus over vastus lateralis activity ratio than lateral rotation (P < 0.05). CONCLUSIONS:There was relatively more activation of vastus medialis obliquus than vastus lateralis at 40 degrees of semisquat with the hip medially rotated by 30 degrees. This finding has clinical implications for training the vastus medialis obliquus in patients with patellofemoral joint pain syndrome.
journal_name
Am J Phys Med Rehabiljournal_title
American journal of physical medicine & rehabilitationauthors
Lam PL,Ng GYdoi
10.1097/00002060-200111000-00003subject
Has Abstractpub_date
2001-11-01 00:00:00pages
804-8issue
11eissn
0894-9115issn
1537-7385journal_volume
80pub_type
临床试验,杂志文章abstract:OBJECTIVE:To evaluate motor function in men with spinal cord injury (SCI) given testosterone replacement therapy (TRT). DESIGN:American Spinal Injury Association (ASIA) rehabilitation discharge motor index scores were compared between men with SCI given TRT (testosterone cypionate, 200 mg, monthly; n = 50) and a compa...
journal_title:American journal of physical medicine & rehabilitation
pub_type: 杂志文章
doi:10.1097/PHM.0b013e318168bbec
更新日期:2008-04-01 00:00:00
abstract::Bilateral forearm and hand transplantation poses unique challenges especially in the setting of bilateral lower limb amputations. A 57-yr-old man with bilateral transradial amputations and bilateral transtibial amputations after remote streptococcal sepsis was admitted for inpatient rehabilitation because of severe de...
journal_title:American journal of physical medicine & rehabilitation
pub_type: 杂志文章
doi:10.1097/PHM.0b013e3182240a73
更新日期:2011-08-01 00:00:00
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journal_title:American journal of physical medicine & rehabilitation
pub_type: 杂志文章
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abstract::A 35-yr-old man sustained an anoxic brain injury resulting from cardiac arrest, with subsequent extreme lethargy and lack of response to stimuli. The patient's lethargy was unresponsive to trials of several medications in attempts to increase arousal. Administration of twice-daily zolpidem 8 mos after injury resulted ...
journal_title:American journal of physical medicine & rehabilitation
pub_type: 杂志文章,评审
doi:10.1097/PHM.0b013e318161971b
更新日期:2008-03-01 00:00:00
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journal_title:American journal of physical medicine & rehabilitation
pub_type: 杂志文章,评审
doi:10.1097/01.PHM.0000107499.24698.CA
更新日期:2004-02-01 00:00:00
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journal_title:American journal of physical medicine & rehabilitation
pub_type: 杂志文章
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journal_title:American journal of physical medicine & rehabilitation
pub_type: 杂志文章
doi:10.1097/00002060-199703000-00010
更新日期:1997-03-01 00:00:00
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journal_title:American journal of physical medicine & rehabilitation
pub_type: 杂志文章
doi:10.1097/PHM.0b013e3181c1ed30
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journal_title:American journal of physical medicine & rehabilitation
pub_type: 临床试验,杂志文章,随机对照试验
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journal_title:American journal of physical medicine & rehabilitation
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00002060-200103000-00003
更新日期:2001-03-01 00:00:00
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journal_title:American journal of physical medicine & rehabilitation
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journal_title:American journal of physical medicine & rehabilitation
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journal_title:American journal of physical medicine & rehabilitation
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更新日期:2008-01-01 00:00:00
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journal_title:American journal of physical medicine & rehabilitation
pub_type: 杂志文章,评审
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更新日期:2004-09-01 00:00:00
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journal_title:American journal of physical medicine & rehabilitation
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journal_title:American journal of physical medicine & rehabilitation
pub_type: 杂志文章
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更新日期:1989-10-01 00:00:00
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journal_title:American journal of physical medicine & rehabilitation
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journal_title:American journal of physical medicine & rehabilitation
pub_type: 杂志文章
doi:10.1097/00002060-200003000-00008
更新日期:2000-03-01 00:00:00
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journal_title:American journal of physical medicine & rehabilitation
pub_type: 杂志文章,随机对照试验
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更新日期:2018-10-01 00:00:00
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journal_title:American journal of physical medicine & rehabilitation
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