英式橄榄球联盟球员的ACE ID基因型与腿部力量

ACE ID genotype and leg power in Rugby Union players.

作者信息

Bell W, Colley J P, Gwynne J R, Glazier P, Evans W D, Darlington S E

机构信息

University of Wales, Institute Cardiff, Cyncoed, Cardiff, Wales, UK. wbell@ uwic.ac.uk

出版信息

J Sports Med Phys Fitness. 2010 Sep;50(3):350-5.

PMID:20842098

Abstract

AIM

The present study examined the hypothesis that there were no significant differences between forwards and backs in the elements of leg power between the ID and DD genotypes of the ACE (I/D) gene in developing young adult Rugby Union players.

METHODS

Sixty-eight players were recruited to identify the distribution of genotypes between forwards and backs. Fifty-eight players were investigated for leg power. Forwards (n=28) comprised 15 ID and 13 DD genotypes, and backs (n=30) 19 ID and 11 DD genotypes. Leg power was measured on a force platform using a counter movement jump; the parameters of interest were peak and relative force, peak and relative power, displacement and velocity. The three-primer polymerase chain reaction was used to assay the region of interest for I and D variants of the ACE gene. The distribution of genotypes was determined by chi-square and comparisons between forwards and backs made using the independent t-test.

RESULTS

No significant differences were identified in the distribution of genotypes between forwards and backs (χ2=2.2, P=0.336). However, significant differences were identified between forwards and backs in a number of components of leg power. Backs had significantly larger values than forwards for relative force (1.50 vs. 1.30 Wt%, P=0.001) and relative power (27.1 vs. 24.3 W.kg-1, P=0.034) for the ID genotype, whereas backs had significantly larger values than forwards for displacement (0.42 vs. 0.38 m, P=0.049) and velocity (2.76 vs. 2.55 m.s.(-1), P=0.007) for the DD genotype.

CONCLUSION

The characteristics of leg power identified will enhance the functional requirements of players according to playing position and commitment.

摘要

目的

本研究检验了以下假设：在发育中的年轻成年英式橄榄球联盟球员中，ACE（I/D）基因的ID和DD基因型在腿部力量要素方面，前锋和后卫之间没有显著差异。

方法

招募了68名球员以确定前锋和后卫之间的基因型分布。对58名球员的腿部力量进行了调查。前锋（n = 28）包括15种ID基因型和13种DD基因型，后卫（n = 30）包括19种ID基因型和11种DD基因型。使用反向移动纵跳在测力平台上测量腿部力量；感兴趣的参数是峰值和相对力、峰值和相对功率、位移和速度。采用三引物聚合酶链反应检测ACE基因I和D变体的感兴趣区域。通过卡方检验确定基因型分布，并使用独立t检验对前锋和后卫进行比较。

结果

前锋和后卫之间的基因型分布没有显著差异（χ2 = 2.2，P = 0.336）。然而，在腿部力量的一些组成部分中，前锋和后卫之间存在显著差异。对于ID基因型，后卫的相对力（1.50对1.30 Wt%，P = 0.001）和相对功率（27.1对24.3 W.kg-1，P = 0.034）显著大于前锋，而对于DD基因型，后卫的位移（0.42对0.38 m，P = 0.049）和速度（2.76对2.55 m.s(-1)，P = 0.007）显著大于前锋。