Timed walking tests correlate with daily step activity in persons with stroke

Area of Science:

• Neurology
• Rehabilitation Medicine
• Biomedical Engineering

Background:

• Stroke survivors often experience impaired walking ability.
• Clinical measures of walking are essential for assessing recovery.
• Activity monitors offer objective, continuous data on daily mobility.

Purpose of the Study:

• To evaluate the correlation between four clinical walking assessments and StepWatch Activity Monitor data.
• To determine which clinical measure best predicts objective walking performance in stroke patients.

Main Methods:

• Correlational study involving 50 participants post-stroke.
• Utilized Rivermead Mobility Index (RMI), Rivermead Motor Assessment (RMA), 6-minute walk test (6MWT), and 10-meter walk test (10MWT).
• Compared clinical scores with StepWatch outputs (daily step counts, stepping rates).

Main Results:

• The 6-minute walk test (6MWT) and 10-meter walk test (10MWT) showed moderate to high correlations with StepWatch outputs.
• The 6MWT was the strongest predictor of StepWatch outputs, explaining 38-54% of variance.
• Age and RMI also predicted some StepWatch outputs.

Conclusions:

• The 6MWT demonstrates the strongest relationship with objective activity monitoring data in stroke survivors.
• Activity monitoring provides complementary information to clinical tests for assessing walking performance.
• StepWatch activity monitoring should be considered an adjunct outcome measure in stroke rehabilitation.