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- Title
Effects of simultaneous use of m-NMES and language training on brain functional connectivity in stroke patients with aphasia: A randomized controlled clinical trial.
- Authors
Hui Xie; Jing Jing; Yanping Ma; Ying Song; Jiahui Yin; Gongcheng Xu; Xinglou Li; Zengyong Li; Yonghui Wang
- Abstract
Introduction: The m-NMES had been demonstrated to redistribute brain resources and induce plastic changes in the stroke patients. However, the physiological mechanism and clinical efficacy of m-NMES combination with existing clinical rehabilitation programs remains unclear in patients with aphasia after stroke. This study aimed to investigate the effects of simultaneous use of m-NMES and language training (m-NMES-LT) with on cerebral oscillations and brain connection, as well as the effect on clinical efficacy. Materials and methods: Total 21 right-handed adult patients with aphasia were randomly assigned to language training (LT) group and m-NMES-LT group, and tissue concentration of oxyhemoglobin and deoxyhemoglobin oscillations were measured by functional near-infrared spectroscopy in resting and treatment state during three consecutive weeks. Five characteristic frequency signals (I, 0.6-2 Hz; II, 0.145-0.6 Hz; III, 0.052-0.145 Hz; IV, 0.021- 0.052 Hz; and V, 0.0095-0.021 Hz) were identified using the wavelet method. The wavelet amplitude (WA) and wavelet phase coherence (WPCO) were calculated to describe the frequency-specific cortical activities. Results: The m-NMES-LT induced significantly higher WA values in contralesional PFC in intervals I, II, and V, and ipsilesional MC in intervals I-V than the resting state. The WPCO values between ipsilesional PFCMC in interval III-IV, and between bilateral MC in interval III-IV were significantly higher than resting state. In addition, there was a significant positive correlation between WPCO and Western Aphasia Battery in m-NMES-LT group. Conclusion: The language training combined with neuromuscular electrical stimulation on median nerve could improve and achieve higher clinical efficacy for aphasia. This is attributed to the m-NMES-LT could enhance cortical activation and brain functional connectivity in patients with aphasia, which was derived from myogenic, neurogenic, and endothelial cell metabolic activities.
- Subjects
BRAIN physiology; STROKE; SPEECH therapy; CEREBRAL circulation; MEDIAN nerve; FUNCTIONAL connectivity; APHASIA; TREATMENT effectiveness; RANDOMIZED controlled trials; PRE-tests &; post-tests; COMPARATIVE studies; STROKE rehabilitation; REHABILITATION of aphasic persons; STROKE patients; STATISTICAL sampling; TRANSCUTANEOUS electrical nerve stimulation; DISEASE risk factors; DISEASE complications
- Publication
Frontiers in Aging Neuroscience, 2022, Vol 14, p01
- ISSN
1663-4365
- Publication type
Article
- DOI
10.3389/fnagi.2022.965486