Construct validity of the TCI mobile app in chronic stroke

Area of Science:

• Rehabilitation Medicine
• Biomedical Engineering
• Digital Health

Background:

• Chronic stroke significantly impacts patient mobility.
• Assessing mobility is crucial for effective stroke rehabilitation.
• The TCI Mobile app aims to provide tools for mobility assessment in chronic stroke.

Purpose of the Study:

• To investigate the construct validity of the TCI Mobile app.
• To determine the app's effectiveness in assessing mobility in individuals with chronic stroke.

Main Methods:

• A cross-sectional study involving 30 participants with chronic stroke.
• Data collected over 5 days, including standard mobility assessments and TCI Mobile app usage.
• Correlations analyzed using Cohen correlation test.

Main Results:

• The TCI Mobile app demonstrated large positive correlations with activity monitors (0.63), the 10-meter Walk Test (0.54), and the Life Space Assessment (0.54).
• A large negative correlation was found with the Timed Up and Go Test (-0.50).
• Moderate positive correlations were observed with the 6-meter Walk Test (0.42) and Lower Extremity Motor Activity Log (0.45).

Conclusions:

• The TCI Mobile app exhibits strong construct validity for assessing mobility in chronic stroke patients.
• The app provides accessible, objective data to support clinical decision-making.
• It has the potential to enhance patient engagement in real-world rehabilitation settings.