Spasm is refers to the muscles or muscle group of intermittent or sustained involuntary contraction performance for increased muscle tension coordination abnormal mode .

痉挛是指肌肉或肌肉群断续或 持续的不随意 收缩，表现为肌张力增高、协调异常的模式。

The analysis of the surface myoelectric signal is a valuable and the signal is recorded while a muscle is performing a sustained contraction tool for assessing the progression of localized fatigue .

当一块肌肉完成 持续 的 收缩时，所记录的表面肌电信号的分析是一个用于评价局部疲劳进行性的有用的工具。

It inhibited the transient contraction induced by NA and caffeine in the Ca 2 + - free medium and the sustained contraction induced by NA after replenishing Ca 2 + ;

该药抑制NA及咖啡因在无Ca2+液中所诱发的短暂收缩及 复Ca2+后NA所致 缩 血管 反应；

Results : Right hand sustained muscle contraction activated the left primary motor cortex the left primary sensory cortex and right cerebellum .

结果：右手 握拳 维持肌 张力激活左侧初级运动皮层区（PrimaryMotorCortex，M1）、初级体感觉皮层（primarysenso-rycortex，S1）及右侧小脑半球。

Inflammatory reaction of the cerebral arteries play a key role in sustained contraction .

脑血管的炎症反应可能在血管的 持续 收缩中起着重要作用。

Methods The effects of Bre on the concentration-response curves for NA and high potassium and on the transient contractions induced by NA and caffeine in Ca 2 + - free medium and the sustained contraction by NA after replenishing Ca 2 + were surveyed using rabbit aorta strips ;

方法采用兔胸主动脉条，观察 Bre对NA及高钾缩血管量效曲线、对NA和咖啡因在无钙液中所致短暂收缩及复钙后NA 缩血管反应的影响；

RESULTS : Both H2O2 and CPA contracted rat aortic rings but with different contractile patterns . H2O2 triggered a fast and phasic contraction whereas CPA elicited a slow and sustained contraction .

结果：H2O2和CPA均收缩去内皮主动脉环，但H2O2触发快速短暂相位相收缩，而CPA诱导缓慢 持续 的 张力相 收缩。