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首页> 外文期刊>Frontiers in Neurology >A 1-Diopter Vertical Prism Induces a Decrease of Head Rotation: A Pilot Investigation
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A 1-Diopter Vertical Prism Induces a Decrease of Head Rotation: A Pilot Investigation

机译:一屈光度垂直棱镜导致头部旋转减少:飞行员调查

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摘要

Clinical studies in non-specific chronic arthralgia and back pain seem to indicate an association between vertical heterophoria (VH – latent vertical retinal misalignment) and asymmetrical head rotation. Such clinical observations suggest a link between VH and head rotation, but this was never tested. The purpose of this study was to simulate a VH in healthy subjects and examine its influence on the amplitude of active head rotation during 3D motion capture in upright stance. Subjects were asked to rotate their head three times from the straight ahead position and then to the right, back to straight ahead, to the left, and back to the straight ahead again. Three randomized conditions were run: normal viewing, with a 1-diopter prism base down on the dominant eye, or the non-dominant eye. The most important finding is that the experimental VH whichever the eye with the prism induces a significant decrease in the mean angle of head rotation compared to the normal viewing condition. This decrease was significant for rotation to the left. We suggest that the prism-induced VH modifies the reference posture and thereby affects head rotation; further studies are needed to confirm this effect and to extend to other types of dynamic activities.
机译:非特异性慢性关节痛和背痛的临床研究似乎表明,垂直异位症(VH –潜在的垂直视网膜错位)与头部不对称旋转之间存在关联。这样的临床观察表明,VH和头部旋转之间存在联系,但从未对此进行过测试。这项研究的目的是模拟健康受试者中的VH并检查其在3D运动捕捉直立姿势期间对主动头部旋转幅度的影响。要求受试者将头部从笔直位置旋转三下,然后向右旋转,再回到笔直向前,再向左,再回到笔直向前。运行了三个随机条件:正常观察,以1-屈光度棱镜向下位于优势眼或非优势眼。最重要的发现是,与正常观察条件相比,实验用的VH不论用棱镜的哪只眼睛都会引起平均头部旋转角度的显着降低。对于向左旋转,此下降幅度很大。我们建议棱镜引起的VH会改变参考姿势,从而影响头部旋转。需要进一步的研究来确认这种影响并将其扩展到其他类型的动态活动。

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