Upper extremity function assessment test using virtual environment technique in stroke survivors

Area of Science:

• Neurorehabilitation
• Biomedical Engineering
• Clinical Assessment

Background:

• Objective assessment of upper limb motor function post-stroke is crucial for effective rehabilitation.
• Traditional clinical scales can be subjective and time-consuming.
• Serious game-based assessments present a promising avenue for objective evaluation.

Purpose of the Study:

• To investigate the validity of metrics from the Upper Extremity Smart Exercises-Innovative Treatment (USE-IT) assessment.
• To determine if USE-IT can provide objective data for upper limb rehabilitation in stroke survivors.

Main Methods:

• Thirty-three stroke survivors participated in the study.
• Participants were assessed using the USE-IT system alongside established clinical scales: Fugl-Meyer Upper Extremity Scale (FM-UE), Wolf Motor Function Test (WMFT), Action Research Arm Test (ARAT), ABILHAND, and ACTIVLIM.
• Validity was determined by analyzing correlations between USE-IT metrics and clinical scale scores.

Main Results:

• The USE-IT's Global Reaching Map total score showed moderate correlations (r=0.52-0.69) with several clinical scales.
• The USE-IT's Local Reaching Map total score demonstrated correlations (r=0.34-0.38) with specific sub-scores of the FM-UE, ARAT, and WMFT.
• All correlations were statistically significant (p < .05).

Conclusions:

• The USE-IT assessment system demonstrates good correlation with widely used clinical scales for upper limb motor function in stroke survivors.
• The findings support the USE-IT as a valid game-based tool for assessing upper limb impairments in this population.
• This technology offers a potential improvement in the objective evaluation of stroke rehabilitation outcomes.