When a child specializes in one sport early in life, certain body parts the arm of a Little League pitcher, the spine of a gymnast are subjected to repetitive stress and overuse. 当孩子在幼年便开始专练一项运动,那么他们身体的某部分(如棒球投手的胳膊,体操运动员的脊柱)将反复承受压力并过度使用。
Repetitive newscasts increase a child's stress and may confuse her into thinking that a single disaster happened over and over again. 重复的报道会增加孩子的压力,可能会让他误认为一个灾害在一遍又一遍地发生着。
I have been reading about repetitive stress injuries, and I know that the office setup is very important. 我一直在阅读有关肢体机械性劳损的文章,了解到办公设备的布置安排非常重要。
Yang styles of yoga generally target the muscles and employ rhythmic, repetitive movements to stress the fibers of the muscles. 阳瑜伽通常目标在于骨肉并富于韵律,重复的运动对肌肉纤维施加压力。
What are repetitive stress injuries? 什么是重复性压力伤害?
The age ranged from 6 to 14 years, with 93% of them above the age of 10. The causes included trauma and repetitive stress. 年龄6~14岁,10岁以上13例。该病以外伤或重复性创伤为其原因。
Therefore, it is necessary to further investigate the mechanisms of myocardial damage induced by repetitive+ Gz acceleration stress. 但是,目前对重复+Gz应激引起的心脏损伤和心功能下降的机理尚未进行较系统、深入的研究。
Effects of low frequency repetitive transcranial magnetic stimulation on forced swimming and amino acid neurotransmitters in the hippocampus in a rat model of chronic depressive stress 低频重复经颅磁刺激对抑郁模型大鼠游泳及海马内氨基酸递质的影响
Aim: To observe the change of cardiovascular endothelium's ultrastructure and its intercelluar adhesion molecules 1 ( ICAM 1) expression in rat after repetitive high positive acceleration (+ Gz) exposures and further to explore the mechanisms of myocardial injuries induced by high+ Gz stress. 目的:观察重复正加速度(+Gz)暴露对大鼠心肌血管内皮细胞超微结构的影响及其暴露后细胞间粘附分子1(ICAM1)表达的变化情况,进一步探讨高+Gz暴露致心肌损伤的机理。
Further studies show that repetitive stress induced y →ε martensitic transformation and its reverse transformation in the cyclic course can enhance the fatigue life of Fe-Mn-Si shape memory alloy by reducing crack-tip stress, restraining plastic sliding deformation and delaying the formation and extension of microcracks. 循环过程中的应力诱发马氏体正、逆相变及其相变伪弹性能降低应力集中,抑制塑性滑移变形,减少微裂纹形成的几率,从而提高Fe-Mn-Si形状记忆合金的应变疲劳寿命。