Reliability of the hand held dynamometer in measuring muscle strength in people with interstitial lung disease

AuthorsDowman, L.
McDonald, C. F.
Hill, C. J.
Lee, A.
Barker, K.
Boote, C.
Glaspole, I.
Goh, N.
Southcott, A.
Burge, A.
Ndongo, R.
Martin, A.
Holland, A. E.
TypeJournal Article (Original Research)
JournalPhysiotherapy
PubMed ID26596172
Year of Publication2016
URLhttps://www.ncbi.nlm.nih.gov/pubmed/26596172
DOIhttp://dx.doi.org/10.1016/j.physio.2015.10.002
Download Dowman_Sep_2016_Physiotherapy.pdf (971.8 KB)
AbstractOBJECTIVE: To evaluate the inter-rater and intra-rater reliability of the hand held dynamometer in measuring muscle strength in people with interstitial lung disease (ILD). DESIGN: Test retest reliability of hand-held dynamometry for elbow flexor and knee extensor strength between two independent raters and two testing sessions. SETTING: Physiotherapy department within a tertiary hospital. PARTICIPANTS: Thirty participants with ILD of varying aetiology were included. Twenty participants completed the inter-rater reliability protocol (10 idiopathic pulmonary fibrosis, mean (SD) age 73 (10) years, 11 male) and 21 participants completed the intra-rater reliability protocol (10 idiopathic pulmonary fibrosis, mean age 71 (10) years, 11 male). MAIN OUTCOME MEASURES: Mean muscle strength (kg). Agreement between the two raters and testing sessions was analyzed using Bland-Altman plots and reliability was estimated using intraclass correlation coefficients (ICC). RESULTS: For elbow flexor strength there was a mean difference between raters of -0.6kg (limits of agreement (LOA) -5.6 to 4.4kg) and within raters of -0.3kg (LOA -2.8 to 2.3kg). The ICCs were 0.95 and 0.98, respectively. For knee extensor strength there was a mean difference between raters of -1.5kg (LOA -6.9 to 3.9kg) and within raters of -0.7kg (LOA -3.9 to 2.4kg). The ICCs were 0.95 and 0.97, respectively. CONCLUSIONS: Hand-held dynamometry is reliable in measuring elbow flexor and knee extensor strength in people with ILD.

http://www.ibas.org.au/what-we-do/publications/3872883


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