Comillas Pontifical University, San Juan de Dios School of Nursing and Physical Therapy, 28350 Madrid, Spain.
SALBIS Research Group, University of León, Faculty of Health Sciences, 24401 Ponferrada, Spain.
Int J Environ Res Public Health. 2020 Dec 3;17(23):9028. doi: 10.3390/ijerph17239028.
Neuromuscular electrostimulation (NMES) has been used mainly as a method to promote muscle strength, but its effects on improving blood flow are less well known. The aim of this study is to deepen the knowledge about the local and contralateral effects of the application of symmetric biphasic square currents on skin temperature (Tsk). An experimental pilot study was developed with a single study group consisting of 45 healthy subjects. Thermographic evaluations were recorded following the application of NMES to the anterior region of the thigh. The results showed an increase in the maximal Tsk of 0.67% in the anterior region of the thigh where the NMES was applied ( < 0.001) and an increase of 0.54% ( < 0.01) due to cross-education effects, which was higher when the NMES was applied on the dominant side (0.79%; < 0.01). The duration of the effect was 20 min in the dominant leg and 10 min in the nondominant one. The application of a symmetrical biphasic current (8 Hz and 400 μs) creates an increase in the maximal Tsk at the local level. A temperature cross-education effect is produced, which is greater when the NMES is applied on the dominant side. This could be a useful noninvasive measurement tool in NMES treatments.
神经肌肉电刺激 (NMES) 主要用作促进肌肉力量的方法，但它对改善血流的影响知之甚少。本研究旨在深入了解对称双相方波电流应用于皮肤温度 (Tsk) 的局部和对侧影响。这项研究是一项单组实验性初步研究，由 45 名健康受试者组成。在大腿前区应用 NMES 后，进行热成像评估记录。结果显示，在前区应用 NMES 时，大腿的最大 Tsk 增加了 0.67%（<0.001），由于交叉教育效应，增加了 0.54%（<0.01），当 NMES 应用于优势侧时，增加幅度更高（0.79%；<0.01）。在优势腿中，效应持续 20 分钟，在非优势腿中持续 10 分钟。应用对称双相电流（8 Hz 和 400 μs）可增加局部最大 Tsk。产生了温度交叉教育效应，当 NMES 应用于优势侧时，这种效应更大。这可能是 NMES 治疗中一种有用的非侵入性测量工具。
