Cortical activation change induced by different peripheral stimulation:a functional NIRS study
10.3969/j.issn.1001-1242.2025.01.012
- VernacularTitle:基于功能性近红外光谱的不同模式外周刺激对成人皮质功能活动的影响
- Author:
Fengyun YU
1
;
Yulian ZHU
;
Leyi XU
Author Information
1. 温州医科大学附属第一医院康复科,浙江省温州市,325000
- Publication Type:Journal Article
- Keywords:
functional near infrared spectroscopy;
cortical activation;
neuromuscular electrical stimulation;
pe-ripheral magnetic stimulation
- From:
Chinese Journal of Rehabilitation Medicine
2025;40(1):73-78
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the change of cortical activation pattem during wrist extension in health subjects in-duced by neuromuscular electrical stimulation(NMES)and peripheral magnetic stimulation(PMS),using func-tional near infrared spectroscopy(fNIRS).Method:Fifteen health adults received 2 randomly ordered interventions(NMES and PMS),which were applied to the dominant wrist extensor muscle to induce wrist extention.Qxy-hemoglobin(HbO2)and deoxygenated he-moglobin(HbR)were measured in seven regions of interest(ROI)during NMES and PMS stimulation.The difference between these two non-invasive peripheral stimulation on the cortical activation was recorded in the changes of HbO2 and HbR concentrations.Result:During NMES motor phase,HbO2 values of 38 channels in ROI except bilateral S1 region showed a significant decreased compared with the rest period(P＜0.05).The HbO2 values of six channels were significant-ly changed in PMS motor phase,and the activated channels were concentrated on M1 region.The HbO2 val-ues of the left M1 region of hand movement area(channel 35)were higher than other ROI(P＜0.05).The acti-vation of HbO2 in the left M1 hand movement area(channels 23 and 35)was significantly stronger in PMS motor phase than in NMES motor phase(P＜0.05).Based on HbR values,both NMES and PMS activated the same number of channels compared to the rest period.Conclusion:The results showed that NMES induced wrist extension could lead to decreased cortical activation in multiple brain regions,and PMS induced more concentrated and effective cortical activation than NMES.PMS likely via massive inflows of'pure'proprioceptive information.Both PMS and NMES can increase the stimulation of functional activity in parts of muscle-innervated cortex based on changes in HbO2 values,with PMS stimulating cortical functional activity regionally.
