Abstract:
UNLABELLED:Hayes BT, Hicks-Little CA, Harter RA, Widrick JJ, Hoffman MA. Intersession reliability of Hoffmann reflex gain and presynaptic inhibition in the human soleus muscle. OBJECTIVE:To determine the day-to-day reliability of Hoffmann reflex (H-reflex) gain and presynaptic inhibition of spinal reflexes in the human soleus muscle. DESIGN:Controlled trial. SETTING:Research laboratory. PARTICIPANTS:Volunteers (N=30; mean +/- SD age, 23.4+/-3.9y; height, 175.64+/-10.87cm; mass, 84.50+/-24.18kg) with no history of lower extremity pathology and/or injury participated. INTERVENTIONS:Subjects lay prone with the head, shoulders, arms, and hips supported in a static position by a massage body pillow and the ankle positioned at 90 degrees . Recording electrodes were placed over the soleus and tibialis anterior muscle bellies, and the stimulating electrodes were positioned over the tibial nerve in the popliteal space and the common peroneal nerve near the fibular head. MAIN OUTCOME MEASURES:The H-reflex and motor wave recruitment curves were then measured and recorded. Presynaptic inhibition was also assessed in the soleus muscle, and a conditioning stimulation of the common peroneal nerve (1 x motor threshold = motor threshold) was used prior to soleus H-reflex measurement. Two testing sessions took place between 2 and 7 days, and each session occurred at the same time of day. RESULTS:Assessments of H-reflex gain and presynaptic inhibition yielded test-retest reliability of R equal to . 95 and .91, respectively. CONCLUSIONS:Measures of presynaptic inhibition and H-reflex gain (H slope/M slope) in the human soleus muscle are consistent and reliable day to day.
journal_name
Arch Phys Med Rehabiljournal_title
Archives of physical medicine and rehabilitationauthors
Hayes BT,Hicks-Little CA,Harter RA,Widrick JJ,Hoffman MAdoi
10.1016/j.apmr.2009.07.023subject
Has Abstractpub_date
2009-12-01 00:00:00pages
2131-4issue
12eissn
0003-9993issn
1532-821Xpii
S0003-9993(09)00725-4journal_volume
90pub_type
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journal_title:Archives of physical medicine and rehabilitation
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journal_title:Archives of physical medicine and rehabilitation
pub_type: 临床试验,杂志文章,随机对照试验
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pub_type: 杂志文章,评审
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更新日期:2015-06-01 00:00:00
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更新日期:2006-09-01 00:00:00
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pub_type: 杂志文章,多中心研究
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更新日期:2020-11-01 00:00:00
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pub_type: 杂志文章
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更新日期:2007-11-01 00:00:00