The reliability of knee joint position testing using a dynamometer
10.3760/cma.j.issn.0254-1424.2013.08.004
- VernacularTitle:等速运动系统测试膝关节本体感觉功能的信度研究
- Author:
Guangxin ZHENG
;
Xiaoou ZHAO
;
Zhiyue CHANG
- Publication Type:Journal Article
- Keywords:
Proprioception;
Joint position sense;
Rehabilitation evaluation;
Reliability;
Knee joint
- From:
Chinese Journal of Physical Medicine and Rehabilitation
2013;35(8):609-611
- CountryChina
- Language:Chinese
-
Abstract:
Objective To determine the intra-and inter-tester reliability of a dynamometer in assessment of knee joint position senses (JPS).Methods Sixteen healthy volunteers (intra-rater N =6,inter-rater N =10) were examined with regard to intra-and inter-tester reliability of knee JPS by using Biodex System 3 dynamometer,measured by passive replication test,with subjects passively returning to the initial positions at 30°,45° and 60° knee flexion.The absolute error (AE) angle was recorded.Both intra-and inter-tester reliability studies involved two testers.Results The intra-tester reliability of the AE were moderate reliable at 30°,45°and 60° knee flexion,and the values of intra-class correlation coefficients (ICC) were 0.728,0.780 and 0.807,respectively.The values of Pearson's correlation coefficients for inter-tester reliability were 0.676,0.610 and 0.705,respectively (P ＜ 0.05).There was no significant difference between the AE values of dominance and non-dominant knees,test and retest,and in the AE values of 30°,45°and 60° knee flexion (P ＞ 0.05).The 95％ confidence upper limits of all subjects' AE values were less than 3°.Conclusion The major findings of this study suggest that the test-retest reliability of the knee JPS were moderate using Biodex System 3 dynamometer,and selecting a target angle of passive replication test can achieve the same purpose in 30° to 60°knee flexion.The clinical significance should be taken into consideration when the AE changes were greater than 3 degrees.
