Abstract：
:The aim was to investigate the effects of fatigue induced by electrical stimulation superimposed onto voluntary muscular contractions on postural abilities and strategy (n=8). Two groups of subjects performed a fatiguing of the triceps surae, the first by voluntary muscular contractions (group VOL) and the second (n=8) by electrical stimulation superimposed onto voluntary muscle contractions (group VOL+ES). Balance was measured before and after the completion of both fatiguing tasks, by using a force platform which recorded centre of foot pressure (COP). Spatio-temporal COP parameters were used to evaluate the postural abilities, and a frequency analysis of the COP excursions (Fast Fourier Transform) was performed to estimate the postural strategy (low frequencies mostly account for visuo-vestibular regulation and high frequencies for proprioceptive regulation). In the post-fatigue condition, spatio-temporal COP parameters were not modified in either group. However, the frequency analysis showed that the high frequency band increased more in group VOL than in group VOL+ES. Calf-muscles fatigue did not impair postural control but it generated a change of the contribution of the proprioceptive information (myotatic loops) greater in group VOL than in group VOL+ES. Calf-muscles fatigue induced a modification of the postural strategy that may be exerted more strongly after voluntary muscular contractions than after electrical stimulation superimposed onto voluntary muscular contractions.
journal_name
J Sci Med Sportjournal_title
Journal of science and medicine in sportauthors
Bizid R,Jully JL,Gonzalez G,François Y,Dupui P,Paillard Tdoi
10.1016/j.jsams.2007.10.006subject
Has Abstractpub_date
2009-01-01 00:00:00pages
60-6issue
1eissn
1440-2440issn
1878-1861pii
S1440-2440(07)00260-5journal_volume
12pub_type
杂志文章abstract：OBJECTIVES:The health benefits from participation in half-marathon is challenged by a yearly running-related injury (RRI) incidence proportion exceeding 30%. Research in injury etiology is needed to successfully prevent injuries. The body's load capacity is believed to play an essential role for injury development. The...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
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更新日期：2019-03-01 00:00:00
abstract：OBJECTIVES:To determine the incidence of illness, and identify the relationship between sleep, training load and illness in nationally competitive Australian football athletes. Second, to assess multivariate effect between training load and/or sleep variables. DESIGN:Cohort study. METHODS:Retrospective analyses of pr...
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pub_type： 杂志文章
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更新日期：2019-02-01 00:00:00
abstract：:This study investigated the amount of physical activity that occurs during normal working hours, highlighting the occupational differences in physical activity by occupational category. Data were collected by means of a self-administered questionnaire (Tecumseh Occupational Physical Activity Questionnaire [TOQ]), whic...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
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更新日期：2003-12-01 00:00:00
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journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2014.07.009
更新日期：2015-07-01 00:00:00
abstract：:We challenge the tradition of fitness testing in schools on the basis of purpose, procedures and outcomes. A number of assumptions about validity of selected tests are raised. The need to be able to track fitness through childhood into adulthood is challenged with limited scientific evidence of longitudinal tracking. ...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2006.01.002
更新日期：2006-05-01 00:00:00
abstract：:While taper is a well-established practice in most endurance sports, no study has investigated the effects of taper on repeated-sprint ability (RSA). Eleven female, recreational, team-sport athletes (mean+/-SD: age = 19+/-3 y, VO2max = 39.0+/-6.4 mLxkg(-1)xmin(-1)) trained intensively three times per week for six week...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/s1440-2440(05)80011-8
更新日期：2005-06-01 00:00:00
abstract：OBJECTIVES:To determine the utility of the King-Devick (K-D) test in identifying sports-related concussion in semi-professional rugby players. DESIGN:Descriptive cohort study. METHODS:176 male players were recruited from a semi-professional rugby union competition in New Zealand (NZ). Baseline K-D scores were obtaine...
journal_title：Journal of science and medicine in sport
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doi：10.1016/j.jsams.2017.02.002
更新日期：2017-08-01 00:00:00
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journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2013.09.011
更新日期：2014-11-01 00:00:00
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journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
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更新日期：2017-01-01 00:00:00
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journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2019.02.008
更新日期：2019-07-01 00:00:00
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journal_title：Journal of science and medicine in sport
pub_type： 临床试验,杂志文章
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更新日期：2004-06-01 00:00:00
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journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2006.06.012
更新日期：2006-10-01 00:00:00
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journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
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更新日期：2020-01-01 00:00:00
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journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/s1440-2440(99)80005-x
更新日期：1999-12-01 00:00:00
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journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2019.04.010
更新日期：2019-09-01 00:00:00
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journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2012.12.003
更新日期：2013-11-01 00:00:00
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journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2007.07.006
更新日期：2008-09-01 00:00:00
abstract：:The aims of this study were to assess the durations of the different arm and leg stroke phases (propulsion, glide, and recovery) and the temporal arm-leg gaps between 12 competitive and 12 recreational breaststroke swimmers. The mean ages and best times for a 50-m breaststroke were, respectively, (recreational: 16.9+/...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2008.01.001
更新日期：2009-05-01 00:00:00
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journal_title：Journal of science and medicine in sport
pub_type： 临床试验,杂志文章
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更新日期：2003-12-01 00:00:00
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journal_title：Journal of science and medicine in sport
pub_type： 杂志文章,随机对照试验
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更新日期：2017-04-01 00:00:00
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pub_type： 杂志文章
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更新日期：2014-11-01 00:00:00
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更新日期：2016-07-01 00:00:00
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journal_title：Journal of science and medicine in sport
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更新日期：2018-03-01 00:00:00
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pub_type： 杂志文章
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更新日期：2020-11-01 00:00:00
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journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
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更新日期：2008-11-01 00:00:00
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journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
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更新日期：2008-04-01 00:00:00
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更新日期：2013-11-01 00:00:00
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pub_type： 杂志文章,实务指引,评审
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更新日期：2011-11-01 00:00:00
abstract：:The aim of this study was to examine the effects of an early dismissal (after 5-min play) on work-rate in a professional soccer match. A computerised player tracking system was used to assess the work-rates of seven players who completed the match on a team with 10 players. A minute-by-minute analysis of the remaining...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
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更新日期：2010-01-01 00:00:00
abstract：:Reaction time (RT), movement time (MT), total response time (RMT) and accuracy of elite and novice fencers was studied under three levels of target choice (single-, two- and four-targets) with three variations of movement distance (short, medium and long lunge). In addition, electromyographic activity (EMG) of selecte...
journal_title：Journal of science and medicine in sport
pub_type： 临床试验,杂志文章
doi：10.1016/s1440-2440(00)80011-0
更新日期：2000-12-01 00:00:00
