Timed Motor Function Tests (TMFTs) determined the walking abilities of an individual. During Covid-19 pandemic direct observation may not be feasible to record Timed motor function in children. Hence, the reliability and validity of video based observation and online based observation (VBO and OBO) methods to be explored. Middle school going children age group between 8 and 12 years was recruited for the study on the basis of convenience sampling. Sample size selected for each age group was according to sample size criteria of Interclass coefficient analysis. After anthropometrics, 10 meters walk test was recorded using three methods; VBO, OBO and direct observation for three times to estimate intrarater reliability and three days within a week to estimate test-retest reliability. The mean of three readings was used to find the estimated value. Direct observation method was used as a criterion measure method to report concurrent validity. After concurrent validity, Test-retest Reliability and Intrarater Reliability of VBO and OBO was reported. Reliability and validity of VBO and OBO with direct observation was reported by recording 10 meters walk test in children.

Inclusion Criteria:

1. Asymptomatic middle school going children
2. Boys and girls in the age group between 8 and 12 years
3. Independent walking has achieved at age of 14 months
4. Able to understand and follow commands of examiner.

Exclusion Criteria:

1. Any Neurological disease
2. Any musculoskeletal disease in Lower Limb
3. Deformity in Lower Limb
4. Past history of surgery in Lower Limb in past 1 year
5. Any cardio-respiratory difficulties. -

Middle school going children from tertiary school of Mullana-Ambala region