Reliability of Postural Analysis Application Technology (PAAT) as a Measure of Static Standing Posture

Abstract

Aim: To determine the instrument reliability of Postural Application Technology (PAAT) as an assessment tool of static posture. Method: There were sixty participants included in the study. The respondents were obtained using a non-probability convenience sampling technique, Slovin’s Formula was used to compute for the sample size. Data were analyzed using Cronbach Alpha Correlation to measure internal consistency, Interclass correlation Coefficient for external reliability. A scattered plot was use to understand and observed the correlational / relationship between variables. Result: The anterior view (AV) and lateral view (LV) showed high reliability on the shoulder, ankle, torso, and leg assessments (Cronbach’s alpha= 0.80, 0.76, 0.84, 0.84 respectively) and medium reliability on AP head, arms, pelvis assessments (Cronbach’s alpha= 0.50, 0.66, 0.61 respectively), and for LV head tilt (Cronbach’s alpha= 0.64.) For external reliability on AV, data showed excellent reliability on shoulder, pelvis, and ankle assessments (ICC= 0.81,0.77, 0.79) and good reliability on arms (ICC=0.65); and fair reliability on head and knees (ICC= 0.5, 0.46 respectively). With LV, excellent reliability was found on torso and legs (ICC= 0.84, 0.77) respectively) and good reliability on head tilt (ICC=0.64). The scatter plot showed a strong positive linear correlation of the anterior view data with the head, shoulder, pelvis, and ankle. With the lateral view data, the scatter plot showed a strong positive linear correlation with head tilt, and torso, and a weak positive linear correlation with the leg Conclusion and Implication: PAAT is a reliable tool for the assessment that can be used by clinicians, academicians, and students for objective assessment of static posture.