在患有帕金森病的人群中,将白质的微观结构完整性与反应性步行的改善联系在一起
Andrew S Monaghan1, Edward Ofori2, Brett W Fling3,4
1Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Emory University, Atlanta, GA, USA.
Brain imaging and behavior
|March 26, 2024
概括
在像ATR和SLF这样的途径中,白质完整性,特别是分数异构性 (FA),对于患有帕金森病 (PwPD) 的人来说,在训练后改善和保持反应性步行技能至关重要.
科学领域:
- 神经科学是一个神经科学.
- 发动机控制器的控制器
- 神经康复疗法 神经康复疗法
背景情况:
- 患有帕金森病 (PwPD) 的人表现出受损的反应性步行,增加了跌倒的风险.
- 虽然实践可以增强PwPD中的反应性步骤,但潜在的神经机制仍然不清楚.
- 了解这些机制对于优化平衡康复策略至关重要.
研究的目的:
- 为了研究白质相关的改善的反应性步进在PwPD在培训计划后.
- 确定与步行立即和持续改善相关的特定白质道.
- 探索白质完整性和帕金森病中的运动学习之间的关系.
主要方法:
- 在为期18周的多重基线研究中,对22名PwPD进行了为期两周的反应性步骤训练方案.
- 评估包括反向反应步骤试验,测量前后稳定边缘 (AP MOS),步骤长度和步骤延迟.
- 基于通道的空间统计 (TBSS) 相关的白质完整性 (分数异构性 (FA) 和辐射扩散性 (RD)) 具有逐步改进.
主要成果:
- 训练后观察到步骤长度和AP MOS的显著和持续改善.
- 步骤长度改善的保留与左前/后胸膜辐射 (ATR/PTR),左上纵向 (SLF) 和右下纵向 (ILF) 的增加FA相关.
- 步骤延迟保留与左后冠状辐射和左PTR中的较低的辐射扩散率 (RD) 有关. 在AP MOS和步长的立即改善与几个白质通道的FA增加有关,包括右ILF,右SLF,右皮质脊髓通道和双边ATR.
结论:
- 白物质的微结构完整性,特别是FA,对于运动学习和PwPD中反应性步进的保留至关重要.
- 特定的白质路径,包括ATR,PTR,SLF,ILF和皮质脊髓,都与反应性逐步改善有关.
- 这些发现可以帮助确定谁可能从有针对性的平衡康复干预中受益最多.
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