Open AccessValidity of hand-held dynamometer in assessing isometric leg strength in older adults
Author(s) -
Chong-Do Lee
Publication year - 2019
Publication title -
international journal of applied sports sciences
Language(s) - English
Resource type - Journals
eISSN - 2233-7946
pISSN - 1598-2939
DOI - 10.24985/ijass.2019.31.1.52
Subject(s) - isometric exercise , dynamometer , cronbach's alpha , psychology , physical therapy , intraclass correlation , reliability (semiconductor) , muscle strength , anthropometry , physical medicine and rehabilitation , medicine , psychometrics , developmental psychology , engineering , power (physics) , physics , quantum mechanics , aerospace engineering
Purpose This study examined the accuracy and consistency of hand-held dynamometer (HHD) in assessing leg muscle strength in older adults. Methods Forty-eight elderly men and women (12 males and 36 females), aged 60-85 years, were recruited for this study. All study participants had anthropometric measurements, handgrip, the HHD, and isokinetic dynamometer tests. Pearson partial correlations were used to examine the validity of HHD compared with an isokinetic dynamometer after adjustment for age, sex, and race. Cronbach α coefficients were used to estimate the test-retest reliability of the HHD measurement. Results Age-, sex-, and race-adjusted partial Pearson correlation coefficients were 0.90 for isometric leg strength (p