Vol. 5, Issue 5, Part A (2019)

Abstract
The purpose of the study was to check the reliability of smartphone based goniometer application fpr knee flexion range of motion. Study design used was an observational study. The participants were recruited using simple random sampling method. Total number of participants were 50 of age group between 20-60. Maximum active knee flexion was measured in supine position with Universal goniometer and Goniometer records by three qualified physiotherapists. Data was collected and analyzed using SPSS (version: 20) and Bland Altman Test was used. Results revealed that significant correlation were found between the application Goniometer Records (r=0.9409) and Universal Goniometer (r= 0.8149) methods for the mean of 3 trails. The two talied paired t-test indicated significant difference between the application Goniometer records mean and universal goniometer mean. The ICC and 95% confidence interval (CI) for Smartphone Goniometer was 0.9409 (95% CI, 0.9133-0.9599) and that for Universal Goniometer was 0.8149 (95% CI, 0.7363-0.871).It could be concluded that the Goniometer Records demonstrated acceptable test-retest reliability. The Goniometer Records exhibited high reliability.