Therapeutic effects of powered exoskeletal robot-assisted gait training in inpatients in the early stage after stroke: a pilot case-controlled study.
Jian-Jia Huang, Shih-Chieh Chang, Lei-Chi Lin and 3 others
PMID 39593164WHAT IT FOUND
Adding six sessions of powered exoskeleton gait training to standard care did not significantly improve walking speed compared to standard care alone.
However, a higher proportion of patients receiving the robot reached the clinically important improvement threshold for walking speed and daily activities.
Key findings
01The difference in walking speed improvement between the robot-assisted group and the conventional therapy group was not statistically significant.
02More patients in the robot group achieved the minimum clinically important difference for walking speed (70.59%) compared to the conventional group (43.21%), a significant difference.
03More patients in the robot group achieved the minimum clinically important difference for the Barthel Index (41.18%) compared to the conventional group (17.28%), a significant difference.
STILL TO COME
How it was doneWhat they foundWhat it means for PTsWhat it means for OTs
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What it does not show
The study was a pilot with a small sample size in the intervention group (n=17), limiting the certainty of the findings. The groups were not randomly allocated; the robot group had a longer time since stroke onset (approx. 35 days vs 14 days), which could influence recovery rates. The robot group received extra therapy time (6 sessions of 40 mins) that the conventional group did not, so it is unclear if the benefit was due to the robot or the additional therapy hours. The kinematic data was collected while wearing the robot, which may alter the natural gait pattern even in 'free mode'.
Declared interests
Funded by the Ministry of Science and Technology, Taiwan and Chang Gung Medical Foundation. No commercial conflicts of interest declared.
The easy way to misread this
Do not conclude that the robot is superior to conventional care based on average scores. The primary comparison of improvement magnitude showed no significant difference between groups. The positive findings rely on the proportion of patients crossing a specific clinical threshold, which can be sensitive to small sample sizes and baseline differences.