Abstract：
:The effects of a cutaneous imperative stimulus trigger cue (sural nerve stimulation) versus visual cuing of rapid step initiation were assessed in young, healthy subjects (n = 18). Two sets of experiments were conducted in which the vertical ground reaction force and EMG in tibialis anterior (TA) and gluteus medius (GM) were recorded in nine subjects and the vertical ground reaction force and center of pressure were recorded in a separate group of nine subjects. Subjects stood with one foot on a force platform with weight equally distributed and asked to take three steps as quickly as possible. A visual ready signal was followed at random times (0.5-2 s) by either a second visual go cue or stimulation of the sural nerve. Results revealed that sural cuing produced: (1) earlier onset times, greater vertical ground reaction forces and a greater rate of rise of force, (2) earlier onsets of TA and GM and greater mean EMG amplitudes in these muscles and (3) greater COP displacements in both the posterior and lateral direction. These results confirm previous reports on the functions of TA and GM in step initiation and further show that sural cuing enhances these EMG responses and the subsequent kinetic and kinematic changes associated with them.
journal_name
Exp Brain Resjournal_title
Experimental brain researchauthors
Kukulka CG,Hajela N,Olson E,Peters A,Podratz K,Quade Cdoi
10.1007/s00221-008-1566-7subject
Has Abstractpub_date
2009-01-01 00:00:00pages
167-73issue
2eissn
0014-4819issn
1432-1106journal_volume
192pub_type
杂志文章abstract：:The effects of an opioid receptor antagonist, naloxone (NAL), were studied on the changes in pituitary hormone secretion induced by emotional stress. Male Wistar rats were trained with tone stimuli paired with electric footshocks and tested with the tone and environmental cue signals for emotional stress of fear acqui...
journal_title：Experimental brain research
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journal_title：Experimental brain research
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journal_title：Experimental brain research
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更新日期：1981-01-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章,评审
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journal_title：Experimental brain research
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00239400
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journal_title：Experimental brain research
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doi：10.1007/BF00231466
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journal_title：Experimental brain research
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journal_title：Experimental brain research
pub_type： 杂志文章
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journal_title：Experimental brain research
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doi：10.1007/BF00236735
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00237474
更新日期：1986-01-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00250246
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doi：10.1007/BF00230420
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-002-1366-4
更新日期：2003-04-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00247281
更新日期：1987-01-01 00:00:00
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journal_title：Experimental brain research
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更新日期：2004-06-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
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更新日期：2014-09-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
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journal_title：Experimental brain research
pub_type： 杂志文章
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journal_title：Experimental brain research
pub_type： 临床试验,杂志文章
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journal_title：Experimental brain research
pub_type： 杂志文章
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journal_title：Experimental brain research
pub_type： 杂志文章
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