Nishikawa Yuichi, Nakase Junsuke, Sengoku Takuya, Kinuya Seigo
Faculty of Frontier Engineering, Institute of Science & Engineering, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan.
Department of Orthopaedic Surgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan.
Eur J Appl Physiol. 2025 Jun 12. doi: 10.1007/s00421-025-05847-6.
The effects of electrical muscle stimulation (EMS) devices that efficiently promote deep muscle contraction have not been characterized. The purpose of this study was to clarify using [18F]-fluorodeoxyglucose positron emission tomography (FDG-PET) whether interference with low-frequency EMS can promote muscle metabolism in deep.
A total of 16 healthy males were randomly assigned to the EMS group (n = 8, age = 29.8 ± 4.1 years) or the control group (n = 8, age = 26.1 ± 5.0 years). Individuals in the EMS group received interference low-frequency EMS for 20 min each day over a span of three consecutive days as part of the pretest phase. On the measurement day, an EMS was conducted for 10 min, followed by an injection of FDG and then another EMS for an additional 10 min. The control group remained in a seated position for 10 min, after which FDG was administered intravenously. Images from PET-computed tomography were acquired in each group 60 min after the injection of FDG. Regions of interest were delineated in each muscle of the lower extremities. We analyzed the metabolism of each skeletal muscle sample by employing a standardized uptake value.
Compared with the control group, the EMS group showed increased glucose metabolism in both superficial and deep muscles of the trunk, pelvis, and lower extremities, as measured by FDG uptake.
This exploratory study suggests that low-frequency interference EMS may increase glucose metabolism in deep and superficial muscles of the trunk, pelvis, and lower extremities.
能够有效促进深层肌肉收缩的肌肉电刺激（EMS）设备的效果尚未得到明确。本研究的目的是使用[18F] - 氟脱氧葡萄糖正电子发射断层扫描（FDG - PET）来阐明低频EMS干扰是否能促进深层肌肉的新陈代谢。
总共16名健康男性被随机分配到EMS组（n = 8，年龄 = 29.8 ± 4.1岁）或对照组（n = 8，年龄 = 26.1 ± 5.0岁）。作为预测试阶段的一部分，EMS组的个体连续三天每天接受20分钟的低频干扰EMS。在测量日，先进行10分钟的EMS，然后注射FDG，接着再进行10分钟的EMS。对照组保持坐姿10分钟，之后静脉注射FDG。在注射FDG后60分钟，采集每组的PET - 计算机断层扫描图像。在下肢的每块肌肉中划定感兴趣区域。我们通过采用标准化摄取值来分析每个骨骼肌样本的代谢情况。
与对照组相比，通过FDG摄取测量发现，EMS组躯干、骨盆和下肢的浅层和深层肌肉中的葡萄糖代谢均增加。
这项探索性研究表明，低频干扰EMS可能会增加躯干、骨盆和下肢深层及浅层肌肉中的葡萄糖代谢。
