Functions necessary for gait independence in patients with stroke: A study using decision tree

Area of Science:

• Neurorehabilitation
• Biomechanics
• Clinical Neuroscience

Background:

• Interactions among multiple impairments affecting gait independence post-stroke are poorly understood.
• Identifying these interactions is crucial for developing targeted rehabilitation interventions.

Purpose of the Study:

• To investigate the interplay of physical functions and their combined effect on gait independence in stroke patients.
• To determine if specific combinations of impairments predict gait independence.

Main Methods:

• Retrospective analysis of 108 subacute stroke patients.
• Decision tree analysis to identify interactions between lower limb motor function, knee extension strength, sensory function, and trunk function regarding gait independence.
• Logistic regression to confirm interaction effects after adjusting for confounding factors.

Main Results:

• Decision tree analysis revealed knee extension strength and proprioception on the affected side as key interacting factors influencing gait independence.
• The interaction between knee extension strength and proprioception was significantly associated with gait independence.
• This association remained significant after adjusting for age, visuospatial perception, and cognitive functions.

Conclusions:

• The combined effect of knee extension strength and proprioception on the affected side is a strong predictor of gait independence in stroke patients.
• These findings underscore the importance of evaluating the synergistic impact of physical impairments in stroke rehabilitation.