Department of Information Engineering, University of Padova, 35131 Padova, Italy.
Istituto di Ricovero e Cura a Carattere Scientifico, Fondazione Santa Lucia, 00179 Roma, Italy.
Sensors (Basel). 2021 Jan 14;21(2):560. doi: 10.3390/s21020560.
The aim of this study was to investigate the effects of Equistasi, a wearable device, on the relationship between muscular activity and postural control changes in a sample of 25 Parkinson's disease (PD) subjects. Gait analysis was carried out through a six-cameras stereophotogrammetric system synchronized with two force plates, an eight-channel surface electromyographic system, recording the activity of four muscles bilaterally: Rectus femoris, tibialis anterior (TA), biceps femoris, and gastrocnemius lateralis (GL). The peak of the envelope (PoE) and its occurrence within the gait cycle (position of the peak of the envelope, PPoE) were calculated. Frequency-domain posturographic parameters were extracted while standing still on a force plate in eyes open and closed conditions for 60 s. After the treatment with Equistasi, the mid-low (0.5-0.75) Hz and mid-high (0.75-1 Hz) components associated with the vestibular and somatosensory systems, PoE and PPoE, displayed a shift toward the values registered on the controls. Furthermore, a correlation was found between changes in proprioception (power spectrum frequencies during the Romberg Test) and the activity of GL, BF (PoE), and TA (PPoE). Results of this study could provide a quantitative estimation of the effects of a neurorehabilitation device on the peripheral and central nervous system in PD.
本研究旨在探讨可穿戴设备 Equistasi 对 25 名帕金森病（PD）患者肌肉活动与姿势控制变化之间关系的影响。步态分析通过六相机立体摄影测量系统与两个力板、八通道表面肌电图系统同步进行，记录了四个双侧肌肉的活动：股直肌、胫骨前肌（TA）、股二头肌和腓肠外侧肌（GL）。计算了包络线的峰值（PoE）及其在步态周期中的出现位置（包络线峰值位置，PPoE）。在力板上睁眼和闭眼条件下站立 60 秒时，提取频域姿势描记参数。使用 Equistasi 治疗后，与前庭和躯体感觉系统相关的中低频（0.5-0.75 Hz）和中高频（0.75-1 Hz）成分、PoE 和 PPoE 向对照组的记录值转移。此外，还发现本体感觉变化（Romberg 测试期间的功率谱频率）与 GL、BF（PoE）和 TA（PPoE）的活动之间存在相关性。这项研究的结果可以提供对神经康复设备对 PD 患者外周和中枢神经系统影响的定量估计。
