一种应用手机软件测量关节活动度的效度和信度研究

Validity and reliability of a mobile phone application for measuring joint ROM

目的研究应用手机软件(Goniometer Pro,G-pro)进行测量髋关节活动度(range of motion,ROM)的测量的信度和效度。方法用量角器和苹果手机软件G-pro来测量髋关节ROM,共有12名受试者参加本次试验。测量者A应用量角器和G-pro来测量髋关节的屈曲角度,同时测量者B应用G-pro进行再次测量髋关节屈曲角度,24 h后测量者A在相同条件下应用G-pro再次测试髋关节屈曲角度。通过分析量角器与G-pro测量结果进行效度分析,通过比较测量者A与B,测量者A前后两次测量进行组间和组内信度研究。结果在同一测量者量角器与G-pro测量值之间无显著性差异(P>0.05),测量者A用G-pro前后24 h前后测量受试者得出的差值也无显著性差异(P>0.05),测量者A、B用G-pro测量髋关节活动度的测量值无显著性差异(P>0.05)。结论G-pro对于测量髋关节屈曲具有良好的信度和效度。

Objective To study the reliability and validity of measuring hip joint range of motion(ROM) with mobile APP(Goniometer Pro, G-pro). Methods The hip joint ROM was measured with a protractor and iPhone APP(G-pro), 12 subjects participated in this trial. Tester A used a protractor and iPhone APP(G-pro) to measure the flexion angle of the hip joint. Tester B used the mobile APP to measure the hip flexion angle again. Twenty-four hours later, tester A used the mobile APP to measure the hip flexion angle again under the same conditions. The validity was evaluated by analyzing the measurement results of protractor and mobile APP. The inter group and intra group reliability was studied by comparing the two measurements of tester A and tester B, and twice measurements of tester A. Results There was no significant difference between the measurements of protractor and iPhone APP by the same tester(P>0.05). There was no significant difference in the twice measurements of tester A using iPhone APP(P>0.05), and there was no significant difference in measurements of tester A and tester B using iPhone APP(P>0.05). Conclusions The iPhone APP(Goniometer Pro) has good reliability and validity in measuring hip ROM.