[Laser analyzer as an objective method for evaluating walking parameters in patients with post-stroke disorders]

To estimate the informativity, sensitivity and specificity of the method of assessing gait function in patients with ataxia and post-stroke hemiparesis using the LA-1 «Laser Analyzer of Kinematic Gait Parameters».

Main tempo-rhythm and spatial gait parameters were assessed in groups of healthy people of young (n=30) and middle (n=30) age. At the second stage, the gait parameters of healthy people were compared with those of patients with ataxia due to vertebrobasilar stroke (n=30) and with post-stroke hemiparesis (n=30). The following parameters were evaluated: the average length and duration of step, the standard deviation of step length, the standard deviation of step duration, coefficient of variability for step length & duration.

The high sensitivity and specificity of the method were established. Standard values were determined for all indicators in groups of healthy people and statistically significant features of the main gait parameters for these syndromes were identified. There were an increase in the step length and duration, standard deviation of step length and duration, step variability coefficients, and a decrease in walking speed. Conclusion. The results are in line with those of earlier studies on the gait change in patients with post-stroke disorders. The LA-1 method can be recommended for clinical use.