食指和无名指指长比率(2D∶4D)与跑步经济性的相关性研究

Research on the Relationship Between Second to Fourth Digit Ratio( 2D∶4D) and Running Economy

研究目的是为了探索食指与无名指指长比率(2D:4D)与跑步经济性(running economy,RE)的相关性。选择12名中长跑二级运动员作为研究对象,其中,男性6名,平均年龄20岁、身高(1.76 3.85)m、体重(67.07 4.02)kg、BMI(21.50 1.18)kg/m2;女性6名,平均年龄20岁;身高(1.68 0.11)m、体重(57.61 7.11)kg、BMI(20.50 1.74)kg/m2。研究方法采用MAX-II运动心肺功能测试系统测量RE,采用Image J软件测量食指与无名指指长,通过皮尔森相关分析RE与2D:4D之间的关系。研究结果发现,男子受试者RE与左手2D和4D比率之间的相关性呈现出高度显著性(p<0.01),而RE与男性的右手、女性的左手和右手2D和4D比率之间的相关性不具有显著性(p>0.05),但均表现出正相关的趋势。研究结论表明,2D:4D比值越小,受试者的RE值存在越好的趋势。

The purpose of this study was to explore the correlation between second to fourth digit ratio（ 2D∶ 4D） and running economy（ RE）. Twelve subjects majored in middle and long distance running participated in this research（ 6 men,average age20 years old,height（ 1. 76 3. 85） m,body weight（ 67. 07 0. 02） kg,BMI（ 21. 50 1. 18） kg / m^2; 6 women,mean age 20years; height（ 1. 68 0. 11） M,weight（ 57. 61 7. 11） kg,BMI（ 20. 50 1. 74） kg / m^2）. The RE was tested by using the MAX-II cardiopulmonary function test system and the 2D∶ 4D was measured by using the Image J software,the relationship between the Pearson correlation analysis of RE and 2D∶ 4D. The results found that the correlation between RE and 2D∶ 4D was significant in the male right hand（ p〈 0. 01） and was not significant in the male left hand（ p〉 0. 01）,and the correlation between RE and 2D∶ 4D was not significant in the female right and left hand（ p〈 0. 01）,but both male and female showed a positive correlation trend between RE and 2D∶ 4D. These results indicate that the smaller ratio of 2D∶ 4D may accompany by the better RE.