ArticleFrontiers in neurology
Effects of Tai Chi Cloud Hands on balance and resting-state functional connectivity after stroke: an fNIRS study.
Article in Frontiers in neurology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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9 authors.
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Abstract
Background: Many people experience balance problems after a stroke. It remains unclear how a short Tai Chi Cloud Hands programme affects resting-state connectivity within the prefrontal-motor network. Methods: This study included 52 inpatients with post-stroke balance problems. Participants were randomly assigned to receive either standard rehabilitation alone or standard rehabilitation plus Tai Chi Cloud Hands. Both groups completed 30 min of rehabilitation per day, 5 days per week, for 2 weeks. Additionally, the experimental group completed 30 min of Cloud Hands training daily for 2 weeks. Outcome measures were collected before and after the intervention by assessors blinded to group allocation. The primary outcome was the Berg Balance Scale (BBS), and secondary outcomes included the Modified Barthel Index (MBI). Static balance was assessed using the PROKIN system, which measured centre-of-pressure (COP) path length and sway area. Resting-state brain connectivity was assessed using functional near-infrared spectroscopy (fNIRS) to monitor oxygenated haemoglobin. Group differences were analysed using ANCOVA, with false discovery rate (FDR) correction applied to 28 predefined brain region pairs. Results: The experimental group showed greater improvements in BBS (partial η Conclusion: Adding a 2-week, high-frequency Tai Chi Cloud Hands programme to standard rehabilitation, delivered at a higher total therapy dose, was associated with greater improvements in balance, daily function, and static postural stability. These improvements were observed alongside regionally specific changes in prefrontal-motor connectivity, including enhanced DLPFC-PreM and PreM-M1 coupling and reduced interhemispheric SMA connectivity. These connectivity findings should be interpreted cautiously as associative rather than mechanistic.
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