Abstract:
:We examined whether maturity, anthropometric profiles and fitness measures vary according to birth date distribution in elite, under-14 youth academy soccer players. The selection year was divided into four quarters, with 160 male players grouped according to individual birth date. Players had their skeletal age determined and were assessed using a battery of standard anthropometric and physical performance tests. Players born across all quarters of the year were investigated for differences in the various performance characteristics using multi- and univariate analyses. An uneven birth distribution was observed, with players born early in the selection year highly represented (P<0.01). A significant difference in height was observed across quarters (P<0.01) with higher values reported in the earlier-born players. No significant differences were observed across any of the fitness measures, although the trend was for players born in the first quarter to out-perform peers born in the later quarters. These findings suggest that the relative age of the performer may not always be linked to a significant advantage in physical components. The selection criteria for entry into the academy may explain the present results.
journal_name
Scand J Med Sci Sportsjournal_title
Scandinavian journal of medicine & science in sportsauthors
Carling C,le Gall F,Reilly T,Williams AMdoi
10.1111/j.1600-0838.2008.00867.xsubject
Has Abstractpub_date
2009-02-01 00:00:00pages
3-9issue
1eissn
0905-7188issn
1600-0838pii
SMS867journal_volume
19pub_type
杂志文章abstract::This study investigated features of skeletal muscle ageing in elderly individuals having previously undergone unilateral total knee arthroplasty (TKA) and whether markers of sarcopenia could be mitigated by a 12-week alpine skiing intervention. Novel biomarkers agrin, indicative of neuromuscular junction (NMJ) degener...
journal_title:Scandinavian journal of medicine & science in sports
pub_type: 杂志文章
doi:10.1111/sms.12458
更新日期:2015-08-01 00:00:00
abstract::This study describes the prevalence, incidence density, severity, and nature of injuries in elite field hockey players over the Dutch 2015-2016 season. Eighty players answered a baseline questionnaire and were subsequently followed up every 2 weeks to report the hours spent on training/competition and experienced inju...
journal_title:Scandinavian journal of medicine & science in sports
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journal_title:Scandinavian journal of medicine & science in sports
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journal_title:Scandinavian journal of medicine & science in sports
pub_type: 杂志文章
doi:10.1111/j.1600-0838.2012.01472.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:2015-12-01 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:2011-08-01 00:00:00
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journal_title:Scandinavian journal of medicine & science in sports
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doi:10.1111/sms.12897
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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:2018-02-01 00:00:00
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journal_title:Scandinavian journal of medicine & science in sports
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journal_title:Scandinavian journal of medicine & science in sports
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journal_title:Scandinavian journal of medicine & science in sports
pub_type: 杂志文章
doi:10.1111/j.1600-0838.2010.01052.x
更新日期:2011-12-01 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/j.1600-0838.1998.tb00462.x
更新日期:1998-12-01 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/j.1600-0838.2005.00480.x
更新日期:2006-06-01 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
doi:10.1111/sms.12057
更新日期:2013-08-01 00:00:00
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journal_title:Scandinavian journal of medicine & science in sports
pub_type: 杂志文章
doi:
更新日期:1995-08-01 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.12176
更新日期:2015-04-01 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.13819
更新日期:2021-01-01 00:00:00
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journal_title:Scandinavian journal of medicine & science in sports
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doi:10.1111/j.1600-0838.2004.405.x
更新日期:2005-06-01 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/j.1600-0838.2012.01473.x
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journal_title:Scandinavian journal of medicine & science in sports
pub_type: 杂志文章
doi:10.1111/j.1600-0838.2004.377.x
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journal_title:Scandinavian journal of medicine & science in sports
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doi:10.1111/j.1600-0838.1999.tb00209.x
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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
abstract::Independently, cardiorespiratory fitness (CRF), C-reactive protein (CRP), and leukocyte count have been shown to predict cancer death. Little is known about the joint impact of CRF and prediagnostic markers of inflammation, particularly leukocyte count and CRP, and their prognostic value with cancer death. The aim of ...
journal_title:Scandinavian journal of medicine & science in sports
pub_type: 杂志文章
doi:10.1111/sms.12952
更新日期:2018-02-01 00:00:00
abstract::The present study examined the relationships between shooting accuracy and shooters' behavioral performance, i.e., postural balance and gun barrel stability, among novice rifle shooters in intra- and inter-individual levels. Postural balance and rifle stability were assessed in terms of anteroposterior (VEL(AP)) and m...
journal_title:Scandinavian journal of medicine & science in sports
pub_type: 杂志文章
doi:10.1111/j.1600-0838.2006.00549.x
更新日期:2007-04-01 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.13769
更新日期:2020-11-01 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.1600-0838.2007.00699.x
更新日期:2008-08-01 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.13892
更新日期:2020-11-29 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.1600-0838.2010.01277.x
更新日期:2012-08-01 00:00:00
abstract::This investigation was designed to (a) develop an individualized mechanical model for measuring aerodynamic drag (F(d) ) while ski racing through multiple gates, (b) estimate energy dissipation (E(d) ) caused by F(d) and compare this to the total energy loss (E(t) ), and (c) investigate the relative contribution of E(...
journal_title:Scandinavian journal of medicine & science in sports
pub_type: 杂志文章,随机对照试验
doi:10.1111/sms.12007
更新日期:2013-02-01 00:00:00
abstract:BACKGROUND:Methods for analyzing the mechanisms of injuries in sports from video sequences of injury situations are so far limited to a simple visual inspection, which has shown poor accuracy. PURPOSE:To investigate whether a new model-based image-matching technique could successfully be applied to estimate kinematic ...
journal_title:Scandinavian journal of medicine & science in sports
pub_type: 杂志文章
doi:10.1111/j.1600-0838.2006.00558.x
更新日期:2007-10-01 00:00:00