Validity and Test-Retest Reliability of a Thai Stroke Physical Activity Questionnaire

Background and objectives: This study evaluated the validity and reliability of the Stroke Physical Activity Questionnaire (SPAQ), a Thai self-report questionnaire for assessing physical activity (PA) in participants with chronic stroke. Methods: The validity of the SPAQ was tested by correlating PA data from the SPAQ with data obtained from a waist worn accelerometer which participants wore for seven days. The participants completed the SPAQ twice, one week apart and test-retest reliability was calculated using intraclass correlation coefficient. Results: Forty-one participants, at least 3 months post-stroke (24 men and 17 women) were enrolled. The average age was 55.3 years (SD 11.9). Correlation coefficients of 0.58 and 0.57 were found between SPAQ and the accelerometer data for moderate PA and moderate to vigorous PA (MVPA), respectively. There was no significant correlation between light PA determined from SPAQ and accelerometer. The intraclass correlation coefficients were 0.56, 0.91 and 0.90 for light, moderate PA and MVPA, respectively. Conclusions: The validity of the SPAQ for moderate and MVPA was acceptable and the test-retest reliability of the SPAQ was excellent. This suggests the SPAQ is a useful tool for assessing moderate PA and MVPA among chronic stroke participants. However, it cannot be used to quantify light PA.