The reliability of push-up android system in measuring physical fitness index among military cadet officers

The aim of this study were, firstly, to develop an android system of push up Physical Fitness Index (PFI) and secondly, to measure the reliability of application of the android system for push up test among military cadet officers. Thirty (N=30; male and female) participants from Military Cadet Officers of National Defense University of Malaysia (NDUM) volunteered to participate in this study. The process starts with the development of the mobile application by using a software. This application allows analysis to be undertaken immediately to measure the PFI in physical fitness testing. To measure the reliability of the application, the participants attended three sessions. This included familiarization of the Push up test procedures and two full trials using the android system that separated by 7 days. Participants performed push up in a straight position from the knees to the shoulders (modified version used for female), lower the upper body until elbows bend to 90 degrees and push back up to the start position. The participants required to complete as many repetitions within 60 seconds. Data were gathered in the application that provides immediate scores for PFI for each participant. The data was analyzed using a Pearson correlation to measure the reliability of the mobile android system application use in fitness test. The results showed significantly high correlation between trials score of the android system application for Push up test (/• = 0.91, n = 30, p <0.001). This indicates that the android system applications for the push up test is reliable. In conclusion, the android system application appears to be reliable and easy to be used and accessible to measure the PFI in a military fitness-testing context.