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Increased Liveliness of Trunk Muscle Responses in Elite Kayakers and Canoeists

机译：优秀的皮划艇运动员和皮划艇运动员增加了躯干肌肉反应的活力

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摘要

Trunk stability functions play an important role in sport and everyday movements. The aim of this study was to analyze trunk strength, trunk muscles onset of activity, and rate of electromyographic rise (RER) in the case of self-inflicted and unexpected trunk loading. Thirty-two healthy young adults (16 elite kayakers/canoeists and 16 non-athletes) were measured with a multi-purpose diagnostic machine. Trunk strength was assessed in standing position. Trunk muscles onset of activity and RER were assessed through unexpected loading over the hands and rapid shoulder flexion, respectively. In comparison with non-athletes, kayakers/canoeists did not significantly differ in trunk strength and showed lower trunk extension/flexion strength ratio ( = 0.008). In general, trunk muscles onset of activity did not significantly differ between the groups. On the contrary, kayakers/canoeists showed higher RER mean values in all the observed muscles ( < 0.041), except in multifidus muscle during self-inflicted movements. Similarly, higher RER variability was observed in the majority of the observed muscles among kayakers/canoeists. Higher RER among kayakers/canoeists could represent a protective mechanism that ensures spine stability and prevents low back pain.
机译：行李箱稳定性功能在运动和日常运动中起着重要作用。这项研究的目的是分析躯干力量，躯干肌肉的活动开始以及在自我施加和意外躯干负荷情况下的肌电图上升率（RER）。用多功能诊断仪测量了32名健康的年轻人（16名皮划艇运动员/皮划艇运动员和16名非运动员）。站立时评估躯干强度。通过意外的双手负荷和快速的肩部屈曲来评估躯干肌肉的活动和RER。与非运动员相比，皮划艇运动员/皮划艇运动员的躯干强度没有显着差异，并且躯干伸展/屈曲强度比较低（= 0.008）。通常，两组之间躯干肌肉的活动开始没有显着差异。相反，皮划艇运动员/划独木舟的人在所有观察到的肌肉中均显示出较高的RER平均值（<0.041），而在自我施加的运动中多指肌除外。同样，皮划艇运动员/皮划艇运动员在大多数观察到的肌肉中观察到较高的RER变异性。皮划艇运动员/皮划艇运动员的较高RER可能代表一种保护机制，可确保脊柱稳定并防止腰背痛。

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