Time synchronization between parietal-frontocentral connectivity with MRCP and gait in post-stroke bipedal tasks.

Only ten post-stroke patients were analysed, so individual brain patterns could vary widely. Four patients were excluded because they were exhausted or because their shoulder touched the EEG reference electrodes, which may leave a more tolerant group. All analysed patients could actively move their hemiplegic limbs and were Brunnstrom stage III to V, so this says little about more severely impaired patients. One patient had no available Brunnstrom stage because previous health records were not available. The experiment lasted 17 min and used cued knee extension and flexion, not a real rehabilitation session or walking task. No functional outcome, walking measure, or recovery outcome was tested, so the paper does not show that any intervention helped patients. The relationship between connectivity and knee angle was inconsistent during movement execution, and one patient started movement before the cue.

The supplied metadata lists research support from a non-U.S. government, but the article text does not provide a funding or conflict-of-interest declaration.

Do not conclude that EEG connectivity or brain-controlled exoskeletons improve walking after stroke. This was a ten-patient lab study of movement preparation and execution, and it did not test a rehabilitation intervention or patient outcomes.