Directionally specific objective postural response assessment tool for treatment evaluation in stroke patients

Area of Science:

• Rehabilitation Medicine
• Biomechanics
• Neuroscience

Background:

• Stroke survivors face a high risk of falls, influenced by directional movement deficits.
• Existing clinical balance assessments may not fully capture directional postural responses.

Purpose of the Study:

• To develop and validate an objective evaluation tool for stroke rehabilitation.
• To assess postural responses in multiple directions during standing perturbations.
• To correlate objective measures with the Berg Balance Scale (BBS).

Main Methods:

• An apparatus was used to apply perturbations in eight directions in the transverse plane.
• Ground reaction force and center of pressure data were collected from neurologically intact volunteers and stroke patients.
• Data were processed and compared with the Berg Balance Scale (BBS).

Main Results:

• Objective positive outcomes of rehabilitation were demonstrated through weight load ratios.
• Postural response strategies in specific directions were identified.
• The objective tool correlated with the BBS, indicating rehabilitation progress and directional fall risk.

Conclusions:

• The developed tool provides objective, directional insights into stroke rehabilitation progress.
• This tool can aid in identifying specific deficits and guiding targeted rehabilitation techniques.
• The tool has potential applications in telerehabilitation for remote balance assessment and fall risk indication.