EMG analysis of the shoulder muscles for creating stimulation data for FES and clinical trial to reconstruct the shoulder function.

对肩部肌肉进行肌电图分析，为 FES 和临床试验创建刺激数据，以重建肩部功能。

• 批准号: 07680930
• 负责人: IHASHI Kouji
• 金额: $ 1.22万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07680930/
• 关键词: shoulder joint; electromyography; motion analysis; functional electrical stimulation; power frequency analysis

We have been studying to restore motor function using the functional electrical stimulation (FES) which consist of percutaneous intramuscular wire electrodes and portable multichannel stimulator. The reconstruction of the shoulder motion is one of the difficult issue for the FES.The first stage of the purpose of this study was to clarify the muscle activity during the shoulder movement in the healthy subjects. The second stage was to control the shoulder movement in a hemiplegic patient by means of FES using the stimulation data which is created from the result of EMG analysis.We have investigated 24 muscles simultaneously using wire electrodes and 12 muscles out of them showed higher activities. The activity patterns of these muscles could be divided into three groups, group 1,2 and 3 were active in the early stage, throughout the whole stage and in the latter half, respectively. Furthermore, group 2 was divided into 2 types with difference of the increasing pattern. We have also studied activity changes of the shoulder muscles in various loads and motion speed. The typical EMG pattern of the shoulder muscles showed no change at the narrow range with light load and slow angle velocity. Simultaneously, for the qualitative EMG analysis, optimum recording way to analyze power frequency during dynamic contraction was studied.A hemiplegic patient has been applied FES to control shoulder motion using the stimulation data which is created from the result of EMG analysis. The shoulder flexion motion was reconstructed within 90 degrees of flexion. Further investigation that to make FES more practical method to restore shouledr function is required. In addition, we have applied electrical stimulation to improve subluxation of the shoulder joint in hemiplegic patients and got several outcome.

我们一直在研究使用功能性电刺激(FES)来恢复运动功能，FES由经皮肌内金属丝电极和便携式多通道刺激器组成。肩关节运动的重建是女性肩部运动的难点之一。本研究的第一阶段旨在阐明健康受试者肩部运动过程中的肌肉活动情况。第二阶段是利用由肌电分析结果产生的刺激数据，通过功能电刺激控制偏瘫患者的肩部运动。我们用线电极同时调查了24块肌肉，其中12块肌肉表现出较高的活性。这些肌肉的活动模式可分为三组，组1、组2和组3分别在早期、整个阶段和后半段活跃。此外，第2组根据增长模式的不同分为两种类型。我们还研究了肩部肌肉在不同负荷和运动速度下的活动变化。肩部肌肉的典型肌电模式在小范围、轻负荷和慢角速度下没有变化。同时，为了对肌电进行定性的分析，研究了动态收缩过程中功率频率分析的最佳记录方式，并利用肌电分析结果产生的刺激数据，应用FES对一名偏瘫患者进行了肩部运动控制。在屈曲90度范围内重建肩关节屈曲运动。要使FES恢复功能更实用，还需进一步研究。此外，我们还应用电刺激改善偏瘫患者肩关节半脱位，取得了多项效果。

项目成果

Ihashi K.: "Electromyographic analysis of shoulder motion in ncvmal subjects" Proc.12th IuT.Congress of World Coufederation for Physical Therapy. 150 (1995)

Ihashi K.：“非正常受试者肩部运动的肌电图分析”Proc.12th IuT.世界物理治疗联盟大会。

Momose K.: "What kind of intrawuseular wive electrode is the optimun for EMG power spectrum analysis-preliminary study-" Proc.2nd IuT.FES Symposium in Sendai. 63-71 (1995)

Momose K.：“什么样的子宫内妻子电极最适合 EMG 功率谱分析 - 初步研究 -”Proc.2nd IuT.FES 研讨会在仙台举行。

Momose K.Ihashi K.et al: "What kind of intramuscular wire electrode is to potimun for EMG power spectrum analysis-preliminary study-" Proc.of 2nd Int.FES Symposium in Sendai. 63-71 (1995)

Momose K.Ihashi K.等人：“什么样的肌内线电极适合肌电图功率谱分析-初步研究-”仙台第二届国际FES研讨会论文集。

Kobayashi H, Ihashi K, et al: "The Effects og Electrical Stimulation for Sulduxation of the Suoulder Joint after CVA" Proc. of Houg Kong Physiotherapy Association International congress 1997. (予定).

Kobayashi H、Ihashi K 等人：“CVA 后电刺激对 Suoulder 关节的影响”，1997 年 Houg Kong 物理治疗协会国际大会议程。（计划中）。

Yokozuka M, Ihashi K, et al: "EMG analysis of the shoulder niuscles during abduction" Proc. of Hong Kong Physiotherapy Association International congress 1997. (予定).

Yokozuka M、Ihashi K 等人：“外展时肩关节的肌电图分析”，香港物理治疗协会国际大会 1997 年议程。（计划中）。