Validity and Reliablity of i-TUG Via EncephaLog

Istanbul University - Cerrahpasa

Status: Completed

Conditions: Smartphones; Stroke, Ischemic; Balance Assessment

Study type: Observational

Funder types: Other

Identifiers

NCT06950554

12.11.2024-171654

Details and patient eligibility

About

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.

Full description

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.

Enrollment: 37 patients

Sex: All

Ages: 18 to 75 days old

Volunteers: No Healthy Volunteers

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.

Trial design

37 participants in 1 patient group

EncephaLog Assessment Group

Description:

The EncephaLog is an FDA-cleared, smartphone-based application designed to assess dynamic balance and gait disorders in older adults and individuals with neurological or non-neurological conditions. The application uses the smartphone' built-in accelerometer and gyroscope to deliver reliable and valid kinematic assessments.