PREDOCTORAL FELLOWSHIPS FOR STUDENTS WITH DISABILITIES

描述：(改编自申请人的摘要)：这项研究将 健康体位对体位摆动影响的研究 成人使用前庭电刺激(GVS)。在GVS期间，一个小的 电流通过放置在乳突上的电极施加。这个 刺激使阴极侧的前庭神经超极化 使阳极侧的前庭神经低极化。这导致了姿势 朝阳极摇摆。根据假设，转动头部相对于 主干将产生一条平行于穿过 乳突。受试者将被要求双脚并拢站在一个力量上 站台。选拔赛将以头部向前进行，然后转20，40 并在应用和不应用的情况下向右和向左60度 正弦GVS。压力中心漂移的方向和大小 将使用测力平台进行测量。的角运动和直线运动 头部(前额)、胸部(T4/T5)和骨盆(S2)将使用 电磁传感器。如果在大小和大小上发现显著差异 姿势摆动方向与不同的头部位置，然后 将对临床实践的适用性进行调查。研究方案 将重复进行，作为先导研究的一部分，对几名患有 近期伴有和不伴有头晕主诉的颈鞭伤的诊断。 如果在姿势的大小或方向上发现显著差异 鞭打损伤患者与健康成人的摇摆 可能被证明是有用的诊断工具或作为评估的结果衡量标准 治疗干预。

DESCRIPTION: (Adapted from the Applicant's Abstract): This study will investigate the influence of head-on-trunk position on postural sway in healthy adults using galvanic vestibular stimulation (GVS). During GVS, a small electric current is applied through electrodes placed over the mastoid. The stimulus hyperpolarizes the vestibular nerve on the cathode side and hypopolarizes the vestibular nerve on the anode side. This results in postural sway towards the anode. It is hypothesized that turning the head relative to the trunk will result in a line of sway parallel to a line through the mastoids. Subjects will be asked to stand with their feet together on a force platform. Trials will be conducted with the head forward, and then turned 20,40 and 60 degrees to the right and left with and without the application of sinusoidal GVS. Direction and magnitude of the excursion of center of pressure will be measured using a force platform. The angular and linear movement of the head (forehead), thorax (T4/T5), and pelvis (S2) will be measured using electromagnetic sensors. If a significant difference is found in magnitude and direction of postural sway with different head positions, then the applicability to clinical practice will be investigated. The research protocol will be repeated, as part of a pilot study, with a few patients with a diagnosis of recent whiplash injury with and without complaints of dizziness. If a significant difference is found in the magnitude or direction of postural sway in patients with whiplash injuries as compared with healthy adults then it may prove useful as a diagnostic tool or as an outcome measure to evaluate treatment intervention.