Test-retest Reliability and Measurement Error in Using A Jamar Dynamometer to Determine Grip Strength for Elderly Men
- VernacularTitle:Jamar握力器对老年男性的重测信度和测量误差
- Author:
Changshui WENG
;
Huiru HOU
;
Na WANG
;
Yafeng YAN
;
Wei YANG
;
Caixing ZHU
;
Liming LIU
;
Weiguo JIAO
;
Zhongshi CHENG
- Publication Type:Journal Article
- Keywords:
older people, grip strength, Jamar dynamometer, test-retest reliability, measurement error
- From:
Chinese Journal of Rehabilitation Theory and Practice
2010;16(1):3-5
- CountryChina
- Language:Chinese
-
Abstract:
ObjectiveTo examine the test-retest reliability and measurement error in using a Jamar dynamometer to determine grip strength for elder men. Methods40 elder men with a mean age of 82 years old volunteered to participate in this study. The grip strength was administered twice using a Jamar dynamometer by specially trained testers; subjects were re-tested at the same time of day a week later by the same testers. ResultsThe infraclass correlation coefficient（ICC） was 0.99. The standard error of measurement (SEM and SEM%) were 1.18～1.69 and 4.11%～6.41%. The smallest real difference (SRD and SRD%) were 3.27～4.68 and 11.39%～17.75%. The Bland-Altman analysis revealed no systematic errors between test and retest. ConclusionThe Jamar dynamometer is reliable and with acceptable measurement errors to determine grip strength for elder men.
