The aim of the study was to determine whether maintaining the standing balance position is influenced by athlete’s symmetric morphological characteristics. Thirty-two healthy sports students participated in this study (age 19.8±1.4 years, body height 182.9±6.8 cm, body weight 79.1±8.1 kg). Morphological characteristicsare represented with differences between the left and the right body side of: forearm girth, upper arm girth, calf girth, thigh girth, long shoulder height, lean mass of legs and lean mass of arms. The standing balance result was calculated as a result of factor scores for 9 measurements of 30 seconds (3 measurements of normal standing, 3 measurements of blind standing, and 3 measurements of deaf standing) collected from the pressure insoles system and the difference in ground reaction force between the left and the right leg. Results show that the asymmetric leg load in maintaining standing balance depends on the side differences in the thigh girth and upper arm girth. The greater difference in the thigh girth in favour of the left sideresulted in bigger ground reaction force on the right leg compared to the left leg and the greater difference in the upper arm girth in favour of the left side resulted in bigger ground reaction force on the left leg. To avoid one side overload, it is essential for all sports activities to be performed bilaterally.

中文翻译：

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身体对称性如何影响站立平衡？

该研究的目的是确定保持站立平衡位置是否受到运动员对称形态特征的影响。32名健康运动学生参加了这项研究（年龄19.8±1.4岁，身高182.9±6.8 cm，体重79.1±8.1 kg）。形态特征以左侧和右侧的身体两侧之间的差异表示：前臂围，上臂围，小腿围，大腿围，长肩高，瘦腿质量和瘦胳膊质量。从压力鞋垫系统​​收集的9次30秒测量结果（3次正常站立测量值，3次盲目站立测量值和3次失聪站立测量值）的因子得分和地面反应的差异计算出站立时间平衡结果左右腿之间的力量。结果表明，保持站立平衡的腿部不对称载荷取决于大腿围和上臂围的侧差。与左腿相比，大腿围有利于左侧的差异较大，因此右腿的地面反作用力较大，而上臂围有利于左侧的差异也较大，从而导致大腿的地面反作用力较大。左腿。为了避免一侧超负荷，必须在两侧进行所有运动。与左腿相比，大腿围有利于左侧的差异较大，导致右腿的地面反作用力较大，而上臂围有利于左侧的差异也较大，从而导致大腿的地面反作用力较大。左腿。为了避免一侧超负荷，必须在两侧进行所有运动。与左腿相比，大腿围有利于左侧的差异较大，导致右腿的地面反作用力较大，而上臂围有利于左侧的差异也较大，从而导致大腿的地面反作用力较大。左腿。为了避免一侧超负荷，必须在两侧进行所有运动。