Centro Integrado de Pós-Graduação e Pesquisa em Saúde (CIPq-Saúde), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Minas Gerais, Brazil.
Programa de Pós-Graduação em Reabilitação e Desempenho Funcional (PPGReab), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Minas Gerais, Brazil.
Biomed Res Int. 2021 Dec 2;2021:9774980. doi: 10.1155/2021/9774980. eCollection 2021.
Rheumatoid arthritis (RA) causes progressive changes in the musculoskeletal system compromising neuromuscular control especially in the hands. Whole-body vibration (WBV) could be an alternative for the rehabilitation in this population. This study investigated the immediate effect of WBV while in the modified push-up position on neural ratio (NR) in a single session during handgrip strength (HS) in women with stable RA.
Twenty-one women with RA (diagnosis of disease: ±8 years, erythrocyte sedimentation rate: ±24.8, age: 54± 11 years, BMI: 28 ± 4 kg·m) received three experimental interventions for five minutes in a randomized and balanced cross-over order: (1) control-seated with hands at rest, (2) sham-push-up position with hands on the vibration platform that remained disconnected, and (3) vibration-push-up position with hands on the vibration platform turned on (45 Hz, 2 mm, 159.73 m·s). At the baseline and immediately after the three experimental interventions, the HS, the electromyographic records (EMGrms), and range of motion (ROM) of the dominant hand were measured. The NR, i.e., the ratio between EMGrms of the flexor digitorum superficialis (FDS) muscle and HS, was also determined. The lower NR represented the greater neuromuscular efficiency (NE).
The NR was similar at baseline in the three experimental interventions. Despite the nonsignificance of within-interventions ( = 0.0611) and interaction effect ( = 0.1907), WBV exercise reduced the NR compared with the sham and control ( = 0.0003, = 8.86, = 0.85, power = 1.00).
Acute WBV exercise under the hands promotes neuromuscular modifications during the handgrip of women with stable RA. Thus, acute WBV exercise may be used as a preparatory exercise for the rehabilitation of the hands in this population. This trial is registered with trial registration 2.544.850 (ReBEC-RBR-2n932c).
类风湿关节炎（RA）会导致肌肉骨骼系统的进行性变化，从而影响神经肌肉控制，尤其是手部。全身振动（WBV）可能是该人群康复的一种替代方法。本研究旨在探讨在稳定型 RA 女性单次握力（HS）测试中，改良俯卧撑姿势下接受 WBV 治疗对神经比（NR）的即时影响。
21 名患有 RA 的女性（疾病诊断：±8 年，红细胞沉降率：±24.8，年龄：54±11 岁，BMI：28 ± 4kg·m）以随机和平衡交叉的顺序接受三种实验干预，每种干预持续 5 分钟：（1）对照组-坐姿，手部休息；（2）假 WBV-手部置于振动平台，但平台保持断开状态；（3）振动 WBV-手部置于振动平台，平台开启（45Hz，2mm，159.73m·s）。在基线和三种实验干预后即刻，测量了 HS、肌电图记录（EMGrms）和优势手的活动范围（ROM）。NR，即屈指浅肌（FDS）肌 EMGrms 与 HS 的比值，也被确定。较低的 NR 代表更高的神经肌肉效率（NE）。
在三种实验干预下，NR 在基线时相似。尽管干预内（ = 0.0611）和交互作用（ = 0.1907）无统计学意义，但与假和对照组相比，WBV 运动降低了 NR（ = 0.0003， = 8.86， = 0.85，功率= 1.00）。
稳定型 RA 女性手部接受急性 WBV 运动可促进握力时的神经肌肉变化。因此，急性 WBV 运动可用作该人群手部康复的预备运动。本试验已在试验注册平台 2.544.850（ReBEC-RBR-2n932c）上注册。
