Abstract：
:The repetition of muscle contractions is likely to generate fatigue which can provoke alterations of postural control. Regulatory mechanisms can be triggered to counteract these alterations. However, these mechanisms would occur only when fatigue is induced through voluntary (VOL) contractions and not with electrically stimulated (ES) contractions. Hence the aim was to compare the effects of VOL and ES fatiguing contractions inducing a similar level of strength loss on unipedal postural control (assessed by means of force platform and EMG measurements), maximal voluntary contraction (MVC) and central activation ratio (CAR) to characterize the alterations induced by both modalities of fatigue and the associated regulatory mechanisms. Results showed that the VOL exercise induced a significant decrease of the CAR whereas the ES exercise did not, thus illustrating that central fatigue was present only after voluntary contractions. The VOL exercise also induced greater postural disturbances and larger regulatory mechanisms than the ES exercise, which also induced postural regulatory mechanisms. The present study reveals that postural control mechanisms are modulated according to the nature of the fatiguing contractions, likely due integration of specific fatigue signals according to the modality of the contraction. Because of a larger neurophysiological impact of VOL than ES fatiguing contractions due to greater central disturbances, VOL exercise-induced larger regulatory mechanisms. Nevertheless, the presence of regulatory mechanisms with ES contractions clearly underlines the ability of the central nervous system to display an accurate motor control following acute externally induced neuromuscular perturbations.
journal_name
Exp Brain Resjournal_title
Experimental brain researchauthors
Hachard B,Noe F,Catherine A,Zeronian Z,Paillard Tdoi
10.1007/s00221-018-5418-9subject
Has Abstractpub_date
2019-02-01 00:00:00pages
313-323issue
2eissn
0014-4819issn
1432-1106pii
10.1007/s00221-018-5418-9journal_volume
237pub_type
杂志文章abstract：:Since normal human subjects can perform smooth-pursuit eye movements only in the presence of a moving target, the occurrence of these eye movements represents an ideal behavioural probe to monitor the successful processing of visual motion. It has been shown previously that subjects can execute smooth-pursuit eye move...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s002210000459
更新日期：2000-08-01 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：1980-01-01 00:00:00
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journal_title：Experimental brain research
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更新日期：2001-10-01 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：1998-12-01 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：1995-01-01 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：2011-01-01 00:00:00
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pub_type： 杂志文章
doi：10.1007/s00221-014-4181-9
更新日期：2015-04-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00248539
更新日期：1989-01-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-020-05790-2
更新日期：2020-05-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-015-4283-z
更新日期：2015-07-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00235864
更新日期：1985-01-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00237513
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
doi：10.1007/BF00228123
更新日期：1990-01-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00239400
更新日期：1983-01-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-001-0990-8
更新日期：2002-03-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s002210050457
更新日期：1998-08-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00229624
更新日期：1996-06-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00250595
更新日期：1988-01-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-001-0981-9
更新日期：2002-03-01 00:00:00
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journal_title：Experimental brain research
pub_type： 临床试验,杂志文章
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更新日期：2004-12-01 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：1989-01-01 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：1984-01-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00279654
更新日期：1988-01-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00247300
更新日期：1988-01-01 00:00:00
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pub_type： 杂志文章
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更新日期：2020-12-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章,评审
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更新日期：2014-11-01 00:00:00
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pub_type： 杂志文章
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更新日期：2002-04-01 00:00:00
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pub_type： 杂志文章
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更新日期：2006-11-01 00:00:00
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pub_type： 杂志文章
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更新日期：2008-01-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00228547
更新日期：1996-07-01 00:00:00
