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Body sway and performance at competition in male pistol and rifle Olympic shooters

机译：男性手枪和步枪奥运射击比赛中的身体摇摆和比赛表现

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Study aim: We examine the body sway differences between a) pistol and rifle and b) elite and national level senior male Olympic shooters, as well as the possible relation between body sway and performance at competition in Olympic shooting.Material and methods: Two body sway tests (feet together and feet apart) were performed by 28 Spanish male senior Olympic shooters just before competition. Performance was measured as the actual score at competition. Total center of mass (COM) areas and average/maximum COM velocities were calculated from force platform data. ANCOVA tests were implemented with age as a covariable. The non-parametric test U of Mann Whitney was used to study the differences between national and elite shooters. Pearson correlations were used to examine the relation between performance and total COM area.Results: At the feet apart position, rifle and elite shooters were found to have statistically less body sway than pistol and national level shooters respectively (total COM areas: F1,25 = 6.7; p 1,25 = 1.49 ; p > 0.05; 1 – β = 0.22, average COM velocities: F1,25 = 0.58; p > 0.05; 1 – β = 0.11, maximum COM velocities: F1,25 = 0.03; p > 0.05; 1 – β = 0.05). No significant relation was found between body sway and performance at competition (feet together: r = 0.13, feet apart: r = 0.14, p > 0.05). Age and body sway were not found to be significantly correlated (F1,25 = 0.23; p > 0.05; 1 – β = 0.08).Conclusions: Easy to carry out, non-specific body sway tests can be used for the selection of novice shooters.
机译：研究目的：我们研究a）手枪和步枪与b）精英和国家级高级男射手之间的身体摇摆差异，以及在奥运会射击比赛中身体摇摆与表现之间的可能关系。材料和方法：两个身体比赛开始前，由28名西班牙男性高级奥运射击手进行了摇摆测试（双脚并拢）。表现以比赛中的实际分数来衡量。根据力平台数据计算总重心（COM）区域和平均/最大COM速度。使用年龄作为协变量进行ANCOVA检验。曼·惠特尼（Mann Whitney）的非参数检验U用于研究国家射手和精英射手之间的差异。结果：在脚分开的位置，步枪和精英射手的身体摇摆率在统计学上低于手枪和国家水平的射手（COM总面积：F 1,25 = 6.7; p 1,25 = 1.49; p> 0.05; 1 –β= 0.22，平均COM速度：F 1,25 = 0.58; p> 0.05; 1 –β= 0.11，最大COM速度：F 1,25 = 0.03; p> 0.05; 1 –β= 0.05）。比赛中身体摇摆与运动表现之间没有显着关系（合计：r = 0.13，脚分开：r = 0.14，p> 0.05）。未发现年龄与身体摇摆有显着相关性（F 1,25 = 0.23; p> 0.05; 1 –β= 0.08）。结论：易于进行的非特异性身体摇摆测试可用于选择新手射击者。

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