This study investigated the test-retest reliability and construct validity of the i-TUG, standard TUG, and Berg Balance Scale (BBS) using the EncephaLog smartphone application in individuals with chronic ischemic stroke. A total of 49 participants were assessed in two sessions to evaluate test-retest reliability. Construct validity was analyzed using Pearson correlation coefficients. Standard Error of Measurement (SEM) and Minimal Detectable Change (MDC) values were also calculated.

The study was conducted with 37 individuals diagnosed with chronic ischemic stroke. Participants were assessed using the i-TUG, TUG, BBS, and additional postural sway parameters collected via EncephaLog. Two test sessions were conducted to assess test-retest reliability. Pearson correlation coefficients were used to evaluate construct validity, and the Standard Error of Measurement (SEM) and Minimal Detectable Change (MDC) were also calculated.

Inclusion Criteria:

• voluntary participation,
• a diagnosis of stroke, no involvement in any physiotherapy program for at least three months prior to the study,
• age between 18 and 75 years,
• the ability to walk independently Functional Ambulation Scale (FAS) score greater than 3,
• the spasticity of the m. gastrocnemius was graded as 2 or less on the Modified Ashworth Scale (MAS).

Exclusion Criteria:

• severe visual or cognitive impairments,
• severe cardiovascular disease, or musculoskeletal conditions or skin disorders that affected the lower extremities.

Inclusion Criteria:

voluntary participation, a diagnosis of stroke, no involvement in any physiotherapy program for at least three months prior to the study, age between 18 and 75 years, the ability to walk independently Functional Ambulation Scale (FAS) score greater than 3, and the spasticity of the m. gastrocnemius was graded as 2 or less on the Modified Ashworth Scale (MAS).

Exclusion Criteria:

Participants were excluded if they had severe visual or cognitive impairments, severe cardiovascular disease, or musculoskeletal conditions or skin disorders that affected the lower extremities.

ischemic stroke patients

De-identified data (i-TUG, TUG, and BBS scores) will be available upon request after publication for research purposes.

De-identified individual participant data and supporting documents (study protocol, statistical analysis plan, and analytic code) will be available beginning 6 months after publication and will remain available for 2 years.

Qualified researchers affiliated with academic institutions will be able to request access to de-identified individual participant data (i-TUG, TUG, BBS scores), study protocol, statistical analysis plan, and analytic code. Requests should be submitted to the corresponding author and will be reviewed by the study team. Data will be shared via secure institutional data transfer platforms.