Abstract：
:The aim of this study was to test the hypothesis that, in comparison with standard postures, aero posture (AP) would modify the coordination of lower limb muscles during pedalling and consequently would influence the pedal force production. Twelve triathletes were asked to pedal at an intensity near the ventilatory threshold (VT+Delta20%) and at an intenisty corresponding to the respiratory compensation point (RCP). For each intensity, subjects were tested under three positions: (1) upright posture (UP), (2) dropped posture (DP), and (3) AP. Gas exchanges, surface electromyography and pedal effective force were continuously recorded. No significant difference was found for the gas-exchange variables among the three positions. Data illustrate a significant increase [gluteus maximus (GMax), vastus medialis (VM)] and decrease [rectus femoris (RF)] in electromyography (EMG) activity level in AP compared with UP at RCP. A significant shift forward of the EMG patterns (i.e. later onset of activation) was observed for RF (at VT+Delta20% and RCP), GMax, VL, and VM (at RCP) in AP compared with UP. These EMG changes are closely related to alteration of force profile in AP (higher downstroke positive peak force, lower upstroke negative peak force, and later occurrence of these peaks along the crank cycle).
journal_name
Scand J Med Sci Sportsjournal_title
Scandinavian journal of medicine & science in sportsauthors
Dorel S,Couturier A,Hug Fdoi
10.1111/j.1600-0838.2007.00765.xsubject
Has Abstractpub_date
2009-02-01 00:00:00pages
44-54issue
1eissn
0905-7188issn
1600-0838pii
SMS765journal_volume
19pub_type
杂志文章abstract：:The purpose of this study was to investigate the ability of closed and open kinetic chain tests of muscular strength to assess functional performance. Sixteen healthy male subjects, with a mean (+/-SD) age, body mass and height of 27+/-5 years, 78+/-9 kg and 183+/-9 cm, respectively, volunteered to participate in the ...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1034/j.1600-0838.2000.010003164.x
更新日期：2000-06-01 00:00:00
abstract：:Although aerobic interval training (AIT) is recognized to attenuate the risk of cardiovascular disease (CVD) and premature mortality, it appears that it rarely arrives at patients' doorsteps. Thus, this study investigated 1-year effects and feasibility of AIT delivered with adherence support in collaborative care of o...
journal_title：Scandinavian journal of medicine & science in sports
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doi：10.1111/sms.13808
更新日期：2020-12-01 00:00:00
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journal_title：Scandinavian journal of medicine & science in sports
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更新日期：1999-10-01 00:00:00
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journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1111/j.1600-0838.2012.01456.x
更新日期：2014-02-01 00:00:00
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journal_title：Scandinavian journal of medicine & science in sports
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更新日期：2018-03-01 00:00:00
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journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
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更新日期：2018-06-01 00:00:00
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journal_title：Scandinavian journal of medicine & science in sports
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更新日期：2016-03-01 00:00:00
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journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1034/j.1600-0838.2000.010002098.x
更新日期：2000-04-01 00:00:00
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journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1111/j.1600-0838.1997.tb00125.x
更新日期：1997-04-01 00:00:00
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journal_title：Scandinavian journal of medicine & science in sports
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更新日期：2014-12-01 00:00:00
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journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1111/sms.12262
更新日期：2015-10-01 00:00:00
abstract：:The effect of a whey protein- and carbohydrate (CHO)-enriched diet on the rate of muscle glycogen resynthesis after a soccer match was examined. Sixteen elite soccer players were randomly assigned to a group ingesting a diet rich in carbohydrates and whey protein [CHO, protein, and fat content was 71, 21, and 8E%, res...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章,随机对照试验
doi：10.1111/j.1600-0838.2011.01418.x
更新日期：2013-08-01 00:00:00
abstract：BACKGROUND:Calf muscle strain injuries (CMSI) show consistent rates of prevalence and re-injury in elite Australian Football players. An epidemiological evaluation is warranted to better understand the clinical presentation and recovery of CMSI. PURPOSE:First, to describe the epidemiology of CMSI in elite Australian F...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1111/sms.13552
更新日期：2020-01-01 00:00:00
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journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1111/sms.12320
更新日期：2015-06-01 00:00:00
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journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1111/sms.12236
更新日期：2014-04-30 00:00:00
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journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1111/sms.13602
更新日期：2020-03-01 00:00:00
abstract：:The aims were to examine the percentage of female elite athletes and controls reporting sexual harassment and abuse (SHAB), and whether a higher percentage of female athletes with eating disorders (ED) had experienced SHAB. A questionnaire was administered to the total population of female elite athletes (n = 660) and...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 临床试验,杂志文章
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更新日期：2003-10-01 00:00:00
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journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1111/j.1600-0838.2010.01229.x
更新日期：2011-12-01 00:00:00
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journal_title：Scandinavian journal of medicine & science in sports
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更新日期：2015-02-01 00:00:00
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journal_title：Scandinavian journal of medicine & science in sports
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doi：10.1111/sms.12614
更新日期：2016-11-01 00:00:00
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journal_title：Scandinavian journal of medicine & science in sports
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doi：10.1111/sms.12945
更新日期：2018-03-01 00:00:00
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journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1034/j.1600-0838.2002.10178.x
更新日期：2002-12-01 00:00:00
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journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章,随机对照试验
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更新日期：2018-04-01 00:00:00
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journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1111/sms.13758
更新日期：2020-10-01 00:00:00
abstract：:Perceived health and physical fitness have been shown to correlate, and low levels of either variable increase the risk for future illness and mortality. However, risk factors and their interrelationship may vary between societies and over time. In this study, the associations of physical fitness and perceived health ...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1111/sms.12943
更新日期：2018-02-01 00:00:00
abstract：:Recent data demonstrated that individuals with type 1 diabetes mellitus (T1DM) exhibit impaired sweating and increased rectal temperature (i.e., heat storage) during exercise compared with healthy controls. Our purpose in this study was to investigate the consequences of T1DM on post-exercise thermal homeostasis. Sixt...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1111/sms.12344
更新日期：2015-10-01 00:00:00
abstract：:The National Hockey League (NHL) entry draft is a process wherein teams make sequential selections from a pool of eligible players. Given the young age of prospects, drafting requires long-term forecasting of future performance under a high level of uncertainty. This study assessed the selection accuracy across all se...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1111/sms.13874
更新日期：2020-11-11 00:00:00
abstract：:We aimed to investigate markers of oxidative stress and levels of endogenous and dietary antioxidants in 16 elite female soccer players in response to a 90-min game (average intensity 82+/-3% HRpeak). Blood samples were taken before, immediately and 21 h after the game. Plasma-oxidized glutathione, the ratio of reduce...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1111/j.1600-0838.2009.00987.x
更新日期：2010-08-01 00:00:00
abstract：:It is investigated if recombinant human erythropoietin (rHuEPO) treatment for 15 weeks (n = 8) reduces extracellular accumulation of metabolic stress markers such as lactate, H(+) , and K(+) during incremental exhaustive exercise. After rHuEPO treatment, normalization of blood volume and composition by hemodilution pr...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1111/sms.12374
更新日期：2015-12-01 00:00:00
