主动屈伸试验与莱尔米特征相似？

The Lhermitte sign, also known as the barber chair phenomenon, is named after Jacques Jean Lhermitte, who described findings in 1920 when evaluating patients with spinal cord concussion and later in other neurologic diagnoses [56, 57]. There are still variations of how the Lhermitte sign is described; however, current description is an electric shock-like sensation that occurs on flexion of the neck that radiates down the spine, often into the legs, arms, and sometimes the trunk [58]. The findings have been described in various pathologic states caused by trauma to the cervical portion of the spinal cord, multiple sclerosis, cervical cord tumor, cervical spondylosis, or even vitamin B12 deficiency. There is limited literature evaluating the effectiveness of the Lhermitte sign in determining cervical radiculopathy. A review by Malanga and colleagues concluded that there is insufficient evidence of the inter-rater reliability, sensitivity, and specificity of the Lhermitte sign specifically. However, the active flexion and extension test described by Sandmark and Nissell resembles the Lhermitte sign and was found to have a high specificity (90%) and low sensitivity (27%) with a negative predictive value of 75% and positive predictive value of 55% [59].

莱尔米特征，也被称为理发椅现象，以Jacques Jean Lhermitte的名字命名，Jacques Jean Lhermitte在1920年评估脊髓震荡患者和以及随后在其他神经学诊断中描述了这一发现^[56，57]。对莱尔米特征的描述仍存在差异；然而，目前的描述是颈部屈曲时出现的电击样感觉，沿着脊柱放射，常放射到腿部、手臂，有时还会放射到躯干^[58]。这些发现在颈髓创伤、多发性硬化症、颈髓肿瘤、颈椎病、甚至是维生素B12缺乏引起的不同的病理状态下都有描述。评价用莱尔米特征确诊神经根型颈椎病有效性的文献有限。Malanga和他的同事的的综述得出结论：没有足够的证据表明莱尔米特征在评估者之间的可靠性、敏感性和特异性。然而，Sandmark和Nissell所描述的主动屈伸试验与莱尔米特征相似，其特异性高(90%)、敏感性低(27%)、阴性预测值为75%、阳性预测值为55%^[59]。

the barber chair phenomenon 是翻译成理发椅现象吗？

主动屈伸试验与莱尔米特征相似，是指 都用屈曲来诱发体征？还是指异性高、敏感性、阴性预测值、阳性预测值 相似？